Know if your crew
can work — before
they roll out.
DecideWeather turns the forecast into a clear go/no-go call for every outdoor work operation — tuned to your exact job site and the conditions that actually decide whether your crew goes.
Every call, 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 decide 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 a decision your whole crew can run on.
Instant timing decisions
A go/no-go call 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 decide whether your crew goes.
Other apps report the weather.
We make the call.
Consumer weather apps were built for "should I bring a jacket?" — not "can my paving crew run today?can the grounds crew spray the greens this morning?" That gap is the whole product.
Better inputs make better decisions.
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 call.
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 go or no-go 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 decision instead of the data. We pull the best forecast sources, blend them with custom algorithms, and check the result against the specific thresholds that decide 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.
Sealcoating windows: how surface temp and dew point decide your day
Air temperature tells you almost nothing about whether sealcoat will cure. Here's how surface temperature, dew-point spread, and overnight drying decide a real go/no-go.
Read the breakdownWind gusts vs. sustained wind: which one actually shuts down a roof crew
Sustained wind numbers hide the gusts that pull a crew off the deck. Here's why peak gusts drive the real safety call on a roof — and how we forecast them.
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
Make the call with confidence.
Add your job sites, pick your operations, and get a go/no-go forecast tuned to your work. Free for two weeks — no card to start.