Saint Peters weather
Loading live data…Cloudy,much the same tomorrow
NWS, the American and the European model put Saint Peters's high today between 73° and 79°, a 6° split. Tomorrow: cloudy, around 78°, with a 1% chance of rain.
CheckWeather.io on iPhoneFree. No ads, no account.Saint Peters weather alerts and warnings
active National Weather Service watches, warnings and advisoriesChecking the National Weather Service for active alerts covering Saint Peters…
The weather map: all three models at once
NWS, American, European side by side around Saint Peters and nearby towns.Live rain radar →Saint Peters hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Saint Peters 10-day forecast, out to 14 days
where the models agree, and where they splitSaint Peters is a town of about 53,000 people in Missouri (MO), sitting at 38.8°N in a temperate climate zone. NWS, American, European each forecast Saint Peters with their own physics, so we line all three up and flag where they disagree. Nearby towns include O'Fallon, Dardenne Prairie, Weldon Spring.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.
How the weather around Saint Peters has changed since 1995
Saint Peters sits in the same roughly 50 km square of NASA's reanalysis as O'Fallon. That square shows no clear change in temperature between 1995-2004 and 2015-2024. See the full 30-year picture on the O'Fallon page.
Which forecast is most accurate in Saint Peters?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.