Saint Charles, MO Hourly Weather

Hour-by-Hour Forecast

Today's Weather Breakdown

Currently 72°F and clear. Today in Saint Charles, MO: high of 82°F, low of 71°F with rain, partially cloudy. 79% chance of rain.

Hour-by-Hour Temperature & Rain Probability

In Saint Charles, MO today, temperatures start near 71°F in the early morning and climb toward a high of 82°F in the afternoon. Rain probability climbs through the day, reaching around 79%. The afternoon hours carry the highest precipitation risk — bring an umbrella if you plan to be outside.

Reading the Hourly Weather Forecast

The hour-by-hour table shows temperature, feels-like temperature, precipitation probability, wind speed, humidity, and UV index for each hour of the day in Saint Charles. Rain probability above 40% for a given hour indicates a meaningful chance of precipitation during that window. UV index above 6 means sun protection is recommended for extended time outdoors.

Hourly forecasts are updated from live weather station data. For the full multi-day picture, see the Saint Charles 10-day forecast or check tomorrow's rain forecast for precipitation timing.

Hour-by-Hour Forecast for Saint Charles, MO

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