What is today's weather forecast for Saint Charles, MO?

Today's forecast for Saint Charles shows a high of 59 degrees and a low of 54 degrees Fahrenheit. A chance of rain before 2pm, then a slight chance of rain after 3pm.

What is the 7-day weather forecast for Saint Charles, MO?

The 7-day forecast for Saint Charles shows highs from 50 to 63 degrees and lows from 40 to 54 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in Saint Charles, MO this week?

Yes, rain is possible in Saint Charles this week. Precipitation chances: Thursday (80% chance), Friday (90% chance), Sunday (20% chance), Monday (60% chance), Tuesday (40% chance).

How accurate is the Saint Charles weather forecast?

WeatherForYou provides highly accurate Saint Charles forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Saint Charles, MO Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

50°F
Feels Like 50°F

Humidity 86% Dew Point 46°F Wind Calm Barometer 29.96 in.761 mm

Solar Rad 49 w/m²

Report from a personal weather station 0.6 miles E of central Saint Charles
at 8:52 AM Thu, Nov 20, 2025

Point Forecast at a Glance

ThuNov 20

30%

FriNov 21

90%

SatNov 22

SunNov 23

MonNov 24

50%

TueNov 25

40%

WedNov 26

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 59°F to 50°F. Unsettled weather expected with rain likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 3°F above the historical average for November. Normal highs for this period are around 55°F with lows around 35°F.

This Date in Weather History

1979 - A blizzard struck Cheyenne, WY, producing a record 19.8 inches of snow in 24 hours, and a record total of 25.6 inches in forty hours. Strong winds created huge drifts stopping all transportation.

Saint Charles, MO 7 Day Weather Forecast Details

Thursday Nov 20

Day: A chance of rain before 2pm, then a slight chance of rain after 3pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 59. Southeast wind 5 to 8 mph. Chance of precipitation is 30%.

Night: A chance of rain before midnight, then rain likely and possibly a thunderstorm between midnight and 3am, then rain after 3am. Patchy fog after 8pm. Low around 54. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.

Friday Nov 21

Day: Rain and possibly a thunderstorm. Patchy fog before 2pm. High near 63. Northeast wind 5 to 9 mph. Chance of precipitation is 90%.

Night: A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 45. North wind 5 to 7 mph.

Saturday Nov 22

Day: Mostly sunny, with a high near 58. Northeast wind 3 to 5 mph.

Night: Mostly clear, with a low around 41.

Sunday Nov 23

Day: Mostly sunny, with a high near 62.

Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 45.

Monday Nov 24

Day: A 50 percent chance of rain. Mostly cloudy, with a high near 58.

Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

Tuesday Nov 25

Day: A 40 percent chance of rain. Partly sunny, with a high near 59.

Night: Mostly cloudy, with a low around 40.

Wednesday Nov 26

Day: Partly sunny, with a high near 50.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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