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CheckWeather USSaint Charles

Saint Charles weather

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The weather map: all three models at once

NWS, American, European side by side around Saint Charles and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

Saint Charles, MD is at its warmest in Jul (average highs near 88°F) and coldest in Jan (lows around 34°F), with roughly 44 in of precipitation across the year. Below, compare what NWS, American, European forecast for Saint Charles right now, and see exactly where they disagree.

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.

Saint Charles climate by month

average daytime high and overnight low across a typical year
Jan
48°
34°
Feb
52°
35°
Mar
58°
39°
Apr
70°
49°
May
74°
55°
Jun
85°
63°
Jul
88°
70°
Aug
85°
67°
Sep
79°
62°
Oct
70°
51°
Nov
58°
42°
Dec
49°
35°

Which forecast is most accurate in Saint Charles?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
83
/100rank #1
86±1.4°F96±1.2 mph7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
64
/100rank #2
83±1.7°F96±1.4 mph1855% hitNOAA / NCEP (United States)College Park, Maryland, USA

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.

Common questions

What's the weather in Saint Charles today?
On this page we show what NWS, American, European each forecast for Saint Charles today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Saint Charles today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Saint Charles and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Saint Charles?
Over the last 30 days, the European model has been the most accurate for Saint Charles (CheckWeather Score 83/100), ahead of the American at 64. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Saint Charles?
July is typically the warmest month in Saint Charles, with average highs around 88°F.
How cold does Saint Charles get?
The coldest month in Saint Charles is January, when overnight lows average about 34°F.
How much rain does Saint Charles get?
Saint Charles sees roughly 44 in of precipitation a year, with August usually the wettest month.

Nearby

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