Know if your crew
can work — before
they roll out.
DecideWeather turns the forecast into a clear Go / Caution / Stop recommendation for every outdoor work operation — tuned to your exact job site and the conditions that affect whether your crew can work.
Every recommendation, tuned to the work you actually do.
Pick your operations and set your job sites. From there, every forecast is checked against the exact conditions that affect whether each one can run.
Construction & exteriors
Rain, wind, temperature, dew point, and drying time — modeled per operation so you know the working window before you dispatch the crew or load the truck.
Grounds & turf operations
Spray windows, leaf wetness, rainfast intervals, and mowing conditions — timed so the grounds crew gets it down before the weather turns and the application is wasted.
Not your typical weather forecast.
Four things that turn a raw forecast into clear guidance your whole crew can run on.
Instant timing guidance
A Go / Caution / Stop recommendation for each work operation, at every job site. Add unlimited sites and set the hours your crews actually work.
Detailed work-window planning
See exactly when each operation can start, run, and finish — broken down hour by hour, so nobody loads the truck for a window that won't hold.
Real-time alerts at every site
Know the moment a window opens or closes on a job — plus weather hazards, incoming precip, and official NWS warnings, watches, and advisories.
Custom-built by a meteorologist
We pull the best forecast data from multiple sources and run it through custom algorithms — built from the ground up for outdoor work, around the thresholds that matter for whether your crew can work.
Other apps report the weather.
We make it clear.
Consumer weather apps were built for "should I bring a jacket?" — not "can my paving crew run today?" or "can the grounds crew spray the greens this morning?" That gap is the whole product.
Better inputs, clearer guidance.
We don't lean on a single forecast. We blend the best available data and run it through algorithms built for the way outdoor work actually happens.
Multiple model blends
We combine several forecast models instead of trusting one — so a single bad run never drives your recommendation.
NWS forecasts
Official National Weather Service guidance and products, woven into every site-level outlook.
Nowcast & radar
The latest nowcasting and radar technology for the next few hours — where job-site timing lives or dies.
Current & past conditions
Live observations and recent history — because what already fell on the ground changes today's window.
Custom blending algorithms
Our own logic merges every source into one coherent picture for your specific location.
Operation-specific thresholds
Output mapped to the limits that matter for each operation — wind, temp, dew point, rainfast, drying time.
Built for the people who have to make the call.
"We stopped sending crews out to sit in the truck for two hours. The window's right there before we dispatch."
"Sealcoat is all about dew point and drying time. This is the first app that actually reads it the way I do."
"We time pours around evaporation rate now, not just the high temp. Way fewer callbacks on cracking."
"My spray windows used to be a gut call at 5 a.m. Now the grounds crew sees a Go or Stop before they clock in."
"Rainfast timing is everything. We stopped wasting product on applications that washed off by noon."
"Tournament week, I'm not guessing. The hourly window for each operation is right there in front of me."
A weather app built by a meteorologist, for outdoor work.
DecideWeather started with a simple frustration: every weather app on the market answers "what's the weather?" — but nobody who runs an outdoor crew is asking that. They're asking "can we work today, and for how long?"
So we built the app around the recommendation instead of the raw data. We pull the best forecast sources, blend them with custom algorithms, and check the result against the specific thresholds that affect whether a roof crew, a paving rig, or a grounds team can run — operation by operation, hour by hour.
It's the tool we wished existed: forecasts that actually know your work.
Meteorology · Software · Outdoor work
Field notes on weather & work.
Reading radar and nowcasts: the next three hours decide the call
A day-ahead forecast sets the plan, but the next three hours decide whether your crew works right now. Here's how radar and nowcasting sharpen a same-day Go / Caution / Stop.
Read the breakdownWatch, warning, advisory: what each NWS alert means for your crew
NWS watches, warnings, and advisories aren't interchangeable. Here's what each one actually signals for an outdoor crew — and how to fold them into a work-window decision.
Snow and ice removal: timing the treat-and-plow window before the freeze
Pre-treat too early and it's wasted; too late and the bond sets. Here's how pavement temperature, timing, and precip type define the snow and ice removal window.
General construction: stacking weather windows across every trade on site
A job site rarely runs one operation. Here's how to read overlapping weather windows for framing, sitework, and exterior trades — so the whole site moves together.
Exterior painting: why dew point, not temperature, sets your dry time
A warm afternoon can still leave paint wet at sundown. Here's how dew point and the temperature spread decide whether an exterior coat actually cures before evening.
Reading radar and nowcasts: the next three hours decide the call
A day-ahead forecast sets the plan, but the next three hours decide whether your crew works right now. Here's how radar and nowcasting sharpen a same-day Go / Caution / Stop.
Read the breakdownWatch, warning, advisory: what each NWS alert means for your crew
NWS watches, warnings, and advisories aren't interchangeable. Here's what each one actually signals for an outdoor crew — and how to fold them into a work-window decision.
Tournament week: planning the grounds crew around a seven-day forecast
Tournament prep compresses a week of agronomy into tight windows. Here's how superintendents read a multi-day forecast to sequence mowing, spraying, and course setup.
Spray windows for superintendents: reading the gap between mowing and rain
Rainfast intervals and leaf wetness decide whether a fungicide pass holds or washes off. Here's how we model the morning spray window so the application sets before the weather turns.
Why one forecast model is never enough for a job-site call
A single forecast model can be confidently wrong. Here's how blending multiple models with NWS guidance and nowcast radar sharpens the next six hours where job-site timing lives or dies.
Install DecideWeather in seconds.
It's a web app — no app store, no download wait. Add it to your phone's home screen and it opens and works just like a native app. Free for two weeks, no card.
- Open app.decideweather.com in Safari
- Tap the Share button (the square with an arrow)
- Choose Add to Home Screen
- Open DecideWeather from your home screen — done
- Open app.decideweather.com in Chrome
- Tap the ⋮ menu (top right)
- Choose Install app or Add to Home screen
- Open DecideWeather from your home screen — done
Weather software for outdoor work, answered.
Is there a weather app for contractors?
Yes. DecideWeather is built for outdoor contractors — roofing, paving, sealcoating, concrete, general construction, painting, and snow & ice removal. It turns the forecast into a Go / Caution / Stop recommendation and an hour-by-hour work window for each operation, tuned to your exact job site.
Is there a weather app for golf course superintendents?
Yes. DecideWeather gives grounds crews per-operation work windows for spraying, mowing, topdressing, aerification, irrigation, and tournament setup — based on rainfast intervals, leaf wetness, wind, and soil conditions.
How is DecideWeather different from a regular weather app?
Consumer weather apps report temperature and a percent chance of rain. DecideWeather checks the forecast against the specific thresholds that matter for each operation and shows a clear recommendation and an hour-by-hour work window, tuned to your exact site.
What weather data does DecideWeather use?
We blend multiple forecast models with National Weather Service guidance, the latest nowcast and radar, and current and past conditions, then run them through custom algorithms mapped to each operation’s thresholds.
Does DecideWeather work on iPhone and Android?
Yes. DecideWeather is a web app (PWA) you install on your phone’s home screen on iPhone, Android, or desktop — no app store needed.
How much does DecideWeather cost?
DecideWeather starts with a 2-week free trial with full features, so you can set up your job sites and operations before deciding.
Make the call with confidence.
Add your job sites, pick your operations, and get a Go / Caution / Stop recommendation tuned to your work. Free for two weeks — no card to start.