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.
Surface temperature vs. air temperature: the number the forecast won't give you
Almost every threshold that decides an outdoor job is a surface threshold — and almost every forecast reports air. Here's how far apart they get, and why the gap is where jobs go wrong.
Read the breakdownIce isn't snow: why the two events need completely different plans
The same storm total can mean an easy plow night or a liability event. Here's why precipitation type — not accumulation — should drive the pre-treat and plow call.
Wind and lifts: the 28 mph limit, and the crane rule everyone gets wrong
Aerial lifts have a real wind rating most crews never check — and the '20 mph OSHA crane limit' people quote isn't what they think it is. Here's what actually binds, and what's just rule of thumb.
Excavation after rain: why the trench you left Friday isn't the trench you return to
OSHA requires a competent-person re-inspection after every rainstorm — and rain can reclassify the soil itself, changing the slope you're legally allowed to work at. Here's what that means for a Monday morning.
Fertilizer wash-off: reading the 24-hour window before you spray
A liquid application that gets rained on isn't just wasted product — it's runoff you're responsible for. Here's how the next 24 hours of forecast precipitation, not the current sky, decide the spray call.
Surface temperature vs. air temperature: the number the forecast won't give you
Almost every threshold that decides an outdoor job is a surface threshold — and almost every forecast reports air. Here's how far apart they get, and why the gap is where jobs go wrong.
Read the breakdownCart traffic after rain: reading the ground before you take the ropes down
Cart-path-only is a revenue decision and a turf decision at the same time. Here's how soil saturation and drying rate — not the hours since the rain stopped — should set the call.
Soil temperature and the spring wake-up: the number that starts your season
Turf doesn't respond to the air — it responds to the root zone. Here's why soil temperature, not the forecast high, tells a superintendent when the season has actually started.
What '40% chance of rain' actually means for your crew — and why it isn't what you think
Probability of precipitation is the most misread number in any forecast. Here's what '40% chance of rain' really measures, why it's nearly useless for a job-site call on its own, and what to watch instead when you're scheduling outdoor work.
Frost delays on the golf course: timing the morning burn-off so the first tee time still goes
A frost delay can cost a course a full morning of revenue. Here's how grass temperature, dew point, and sunrise timing decide when frost actually lifts — and how superintendents forecast the burn-off to protect both the turf and the tee sheet.
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.