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New From the people behind Hard Hat Weather, for La Porte County farms.

For spraying, hay, planting and harvest, livestock, orchards and market gardens

Know by 5 AM if it's a field day.

Field Day Weather sends a call for each of your fields before you head out: spray, cut hay, or get in the field today, with the hours that work and the reason. It's built from National Weather Service forecasts and limits you set, like your product label's wind range.

  • Free for 7 days, then free for one field
  • Built on National Weather Service forecasts
  • A text, not another app to check
A phone showing a Field Day Weather spray call. Example

An example of the 5 AM spray call for a field near La Porte. It comes by text or email.

Try it on your field

See the call you would get.

Type an address, road, town, or ZIP code. We'll check the latest National Weather Service hour-by-hour forecast for that spot against the limits for the job.

The call for this field

Loading the forecast…

How the call is made

  • Every hour is checked against the limits for the job: rain chance, storms, wind and gusts, still air that can mean an inversion, temperature, dew, and humidity.
  • Spraying needs 2 rain-free hours after the spray (change it to match your label). Hay needs a long dry day, and you get the next 3 dry days in a row every morning.
  • Dicamba on soybeans follows the 2026 label's weather rules: no spraying with rain in the forecast within 48 hours, a forecast high of 95°F or more today or tomorrow, winds over 10 or under 3 mph, in the first hour after sunrise or the last 2 hours before sunset, or after June 30.
  • A severe weather warning that covers the field, like a Tornado or Severe Thunderstorm Warning, stops work while it's in effect.
Why farms use it

One clear call, before you hook up the sprayer.

Weather apps give everyone the same numbers to sort through. Field Day Weather checks each of your fields, hour by hour, against the limits for the job, and tells you plainly.

Spray days, not guesses

Wind between 3 and 10 mph, no still air that can mean an inversion, and 2 rain-free hours after. Set any limit to match your label, and the call follows it.

A text, not another app

It comes to you by 5 AM, by text or email, to you and anyone you add, in English or Spanish. No login, nothing to open, any phone.

Frost the evening before

In spring and fall, a frost or freeze call around 6 PM when one is likely, with the low and when it hits, so you can cover, run water, or pick early.

The dicamba label, built in

Pick dicamba for a soybean field, and its call follows the 2026 label's weather rules: wind, the 48-hour rain forecast, today's and tomorrow's highs, the sunrise and sunset window, and the June 30 cutoff.

Spray records by text

Text SPRAYED and the field when you start, DONE when you finish. A dated record comes by email, with the Weather Service forecast and the nearest station's readings, ready for your files.

Heat and cold, for livestock

Heat stress calls from the temperature and humidity, cold stress calls from the wind chill and cold rain, with what to do and when, in the morning call and the evening before when it's dangerous.

How it works

What a day looks like.

You tell us your fields, the job for each one, and when you start. We handle the rest, every day you work.

  1. 5:00 AM

    The call for each field

    GO, DELAY, or STOP for the job, with the hours that work and the reason. On a STOP, it names the next good day. Hay fields get the next 3 dry days in a row, and livestock get a line when heat or cold stress is coming.

  2. During the day

    Heads-ups and warnings

    We recheck every 30 minutes. If rain moves in sooner, or the wind lays down early, you get a heads-up. Weather Service warnings come right away.

  3. 6 PM, when it matters

    Frost, freeze, and livestock

    In spring and fall, when frost or a freeze is likely tonight: the low, when it hits, and how long it stays at 32°F or colder. When tonight's cold or tomorrow's heat is dangerous for livestock, a heads-up. Quiet nights, no message.

  4. Your records

    Spray and weather records

    Text SPRAYED and DONE, and a dated spray record comes by email. Every month, each day's call next to what the nearest weather station recorded: rain, wet hours, and wind.

The messages

Short, specific, and in plain words.

The field, the call, the hours, and the reason. By text to anyone who agrees, or by email. Here's how they read.

A spray call

By 5 AM, for each field on that phone.

Field Day Weather - Tue 4/20 North 40: DELAY TILL 9 AM, WRAP BY 2 PM. Wind under 3 mph until 9 AM: still air can mean an inversion (drift risk). Rain due by 4 PM: spray needs 2 rain-free hours (check your label). Then dry, 56-61F, gusts to 10 mph. Reply STOP to opt out

A heads-up when the call changes

If the wind comes up early or rain moves in sooner. At most 2 a day.

Field Day Weather UPDATE - 10:30 AM North 40: GO, WRAP BY NOON. Winds to 12 mph after noon: drift risk, check your label's wind limits. Dry till then, 61F, light wind. (Was: GO.) Reply STOP to opt out

A hay call

With the next 3 dry days in a row.

Field Day Weather - Mon 6/7 Hay field on 500 N: GO. Dry, 70-78F, gusts to 13 mph. Hay window (3 dry days): Mon 6/7-Wed 6/9 Reply STOP to opt out

Frost the evening before

Around 6 PM in spring and fall, only when it's likely.

Field Day Weather FROST - Sun 5/9 6:00 PM Orchard: FROST possible tonight. Low 33F around 7 AM. Clear and calm: cover tender plants. Reply STOP to opt out

A dicamba call, label rules included

The 48-hour rain forecast, the highs, and the label's sunrise and sunset window, checked for you.

Field Day Weather - Tue 5/18 North 40: GO, WRAP BY 2 PM. Rain in the forecast within 48 hours after 2 PM (50% by Thu 2 PM): the label bars spraying. Dry till then, 62-74F, light wind. Label window: 6:25 AM-6:01 PM. Reply STOP to opt out

Livestock heat and cold

In the morning call when heat or cold stress is coming that day, and around 6 PM when tonight or tomorrow looks dangerous.

Field Day Weather - Tue 7/13 North barn: HEAT STRESS DANGER 1-8 PM (THI up to 83). Shade, water, and fans; work or move animals early, not in the afternoon. Reply STOP to opt out

Field Day Weather LIVESTOCK - Sun 1/17 6:00 PM Calf barn: COLD STRESS DANGER tonight 10 PM-9 AM (wind chill down to -18F). Windbreaks, dry bedding, extra feed, and unfrozen water; check newborns. Reply STOP to opt out

A spray record, by text

Text SPRAYED and the field when you start, with your boom-height readings if you have them, and DONE when you finish. The record comes by email: the forecast, the nearest station's readings, and for dicamba, the label's weather checks.

SPRAYED North 40 72 6 SW

Field Day Weather: spray record started for North 40 at 9:12 AM (72F, wind 6 mph from the SW). Text DONE and your readings when you finish.

En español, for anyone who'd rather

Each phone picks: texting ESPANOL switches it to Spanish, ENGLISH switches it back. Here's the spray call from the top of this page.

Field Day Weather - mar 20 abr North 40: DELAY (empiecen a las 9 AM y terminen antes de las 2 PM). Viento de menos de 3 mph hasta las 9 AM: el aire quieto puede indicar una inversion (riesgo de deriva). Lluvia para las 4 PM: la aplicacion necesita 2 horas sin lluvia (revisar la etiqueta). Luego seco, 56-61F, rafagas de hasta 10 mph. Responde STOP para cancelar

Built for the job

Starting limits for each job. Change any of them.

An hour that crosses a stop limit isn't workable. A heads-up limit is noted in the text so you can plan around it.

Spraying

Stops work
40%+ chance of rain, 30%+ chance of storms, gusts 20 mph+, winds 10 mph+, winds under 3 mph (inversion risk), snow, sleet, or freezing rain, rain within 2 hours of spraying
Heads-up
25%+ rain chance, gusts 15 mph+, winds 8 mph+, below 45°F, above 85°F

Set these to match your product label. The label is the law; the call never overrides it.

Hay

Stops work
30%+ chance of rain, 30%+ chance of storms, snow, sleet, or freezing rain, fewer than 8 dry hours
Heads-up
20%+ rain chance, gusts 25 mph+, dew on the hay, humidity 80%+

Plus the next 3 dry days in a row, every morning.

Field work & harvest

Stops work
60%+ chance of rain, 40%+ chance of storms, gusts 40 mph+, snow, sleet, or freezing rain
Heads-up
40%+ rain chance, gusts 30 mph+, dew on the crop, humidity 90%+, wet ground after rain

Dicamba on soybeans

Stops work
30%+ chance of rain, now or within the next 48 hours, 20%+ chance of storms, winds over 10 mph or under 3 mph, gusts 20 mph+, a forecast high of 95°F+ today or tomorrow, less than 1 hour after sunrise, or in the last 2 hours before sunset, after June 30
Heads-up
20%+ rain chance, gusts 15 mph+, winds 9 mph+, a forecast high of 85-94°F today or tomorrow (the label then limits you to half your untreated acres)

The weather rules of the 2026 over-the-top dicamba labels. You still check the crop stage (not past R1), buffers, and your state’s rules, and some states are stricter. The label is the law.

Livestock

Heat stress
THI (from temperature and humidity) 75+ alert, 79+ danger, 84+ emergency, and nights that stay at THI 72 or higher
Cold stress
wind chill 10°F or colder alert, -10°F danger, -25°F emergency, and cold rain (under 40°F) with wind

Heat levels follow the Livestock Weather Safety Index that extension services use for cattle. Set your own levels for your animals.

Orchard or market garden?

Frost and freeze calls come the evening before for every farm, and we can set limits for whatever weather stops your work. Tell us what matters.

Start 7-day free trial

Weather only: the product label is the law. Field Day Weather never tells you a product is safe to apply, and it doesn't replace the wind and temperature readings some labels require you to take at boom height. Severe weather warnings that cover a field stop work while they're in effect.

Accountable

We keep score. In public.

  • Every Daily Scoop forecast from La Porte Weather Now is checked against the La Porte airport's weather station, hits and misses alike, on our public Track Record.
  • Your weather record does the same for every call we send you, and your Sunday email says how our calls held up at your fields.
  • A real local business: La Porte Weather Now LLC, based in La Porte, run by Scoop, who has completed the National Weather Service's SKYWARN storm spotter training. Questions go to a person, not a call center.
Pricing

$99 a year. Under $2 a week.

Every farm starts with 7 days of everything, free. After that, keep one field free for as long as you like, or pay once a year. No card needed to start, no contract.

Free

$0forever
  • 1 field
  • The 5 AM call, by email
  • Frost, freeze, and livestock calls, by email
  • Weather Service warnings, by email
  • Your calls on your calendar
Start free

Paid farm weather apps and services can run $170 to $650 a year, and you still have to open them. Field Day Weather is $99 a year, and it comes to you. More than 10 fields or 5 people? The Company plan covers every field and everyone for $39 a month. Standard message and data rates from your phone carrier may apply.

Know a farmer?

Share Field Day Weather

Row crops, hay, orchards, u-pick, market gardens: anyone whose day depends on the weather. It's free for one field, so it costs them nothing to try.

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Questions

Good questions, straight answers.

Who makes the final call?

You do. Field Day Weather is guidance from Weather Service forecasts and the limits you set. Forecasts can be wrong, and the product label is the law: always follow it, and official warnings come first.

How is this different from a spray app?

Spray apps show you numbers when you open them. We check each of your fields hour by hour against your limits, then send one clear call with the hours that work, before you head out. Nothing to open.

Does it replace my wind meter or my spray records?

No, but it fills in the weather part. Some labels, like dicamba's, require you to measure wind and temperature at boom height when you start and finish, and to keep records. Text SPRAYED and the field when you start, and DONE when you finish, each with your readings if you have them (like 72 6 SW: temperature, wind in mph, and direction). We email a dated record with the Weather Service forecast at the start, the nearest station's readings, and, for dicamba, the label's weather checks. Your label lists the other records to keep, like the product, rate, and nozzles.

How does the dicamba call work?

Pick dicamba (soybeans) for a field, and its call follows the weather rules on the 2026 over-the-top dicamba labels: no spraying with rain in the forecast within 48 hours (we count a 30% chance or more), a forecast high of 95°F or more today or tomorrow, winds over 10 mph or under 3 mph, in the first hour after sunrise or the last 2 hours before sunset, or after June 30. When the forecast high is 85 to 94°F, the call reminds you of the label's limit of half your untreated acres. It can't see your crop stage, buffers, or what's growing downwind, and some states are stricter, so the label still has the final word.

How do livestock calls work?

Pick livestock for a barn or pasture. When heat stress (from the temperature and humidity) or cold stress (from the wind chill, or cold rain with wind) is coming that day, the 5 AM call says when, how bad, and what helps. When tonight's cold or tomorrow's heat reaches the danger level, a heads-up comes around 6 PM. Quiet days, no message.

What jobs does it cover?

Spraying (with the dicamba label's rules for soybeans), hay, field work and harvest, and livestock heat and cold stress, plus frost and freeze calls for every farm. Orchards and market gardens are welcome: tell us what weather stops your work, and we'll set limits to match.

Can my workers get the texts in Spanish?

Yes. Anyone who'd rather read their texts in Spanish texts ESPANOL to our number, and their morning calls, heads-ups, frost and livestock calls, and spray record replies come in Spanish from then on. ENGLISH switches back. You can also pick Spanish for your own phone when you sign up. Emails stay in English.

Can I see the calls on my calendar?

Yes. Your welcome email has a private calendar link (and on the Farm plan, so does your Sunday email). Add it to Google Calendar, Apple Calendar, or Outlook, and each field's call for the next 7 days shows up there, updating as the forecast changes. The morning call still has the final say.

When does it start, and when do calls come?

The next day after you sign up, by 5:00 AM: about 90 minutes before you start, but never before 4:30 AM. Your 7-day trial starts with your first call. Frost calls come around 6 PM in spring and fall, only when frost or a freeze is likely, and livestock heads-ups around 6 PM when tonight's cold or tomorrow's heat looks dangerous.

Who gets the calls?

You, and anyone else you choose. To add a phone, use your welcome email's short join code: each person texts JOIN and that code to our number from their own phone. Anyone can reply STOP at any time.

Can I change the limits?

Yes, every one of them, for each field: wind, gusts, still air, rain chance, rain-free hours, temperature. Reply to any of our emails with your numbers, and the calls follow them.

What's free, and what does the Farm plan add?

Your first 7 days include everything. After that, the Free plan keeps one field's morning call, frost, freeze, and livestock calls, and Weather Service warnings coming by email, for $0. The Farm plan ($99 a year) adds texts in English or Spanish, up to 10 fields and 5 people, spray records by text, heads-ups when the call changes, the week ahead every Sunday, and your weather record.

Where does it work?

Anywhere the National Weather Service forecasts in the United States. We're based in La Porte County, Indiana, and we're signing up our first farms in Northwest Indiana now.

Is my information shared or sold?

No. We use your details only to run your calls. We never sell or share phone numbers or text consent for anyone's marketing. See our privacy policy.

How do I cancel?

Tell us any time, and we'll stop your calls and billing. No contract, no fee. Anyone can stop texts to their own phone by replying STOP.