Weather in Saint Charles, Missouri, United States

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7-Day Detailed Weather Forecast for Saint Charles

Today

Temperature: 98°F

Wind Speed: 7 mph

Wind Direction: SW

Forecast: Sunny, with a high near 98. Heat index values as high as 107. Southwest wind around 7 mph.

Tonight

Temperature: 79°F

Wind Speed: 3 to 7 mph

Wind Direction: S

Forecast: Mostly clear, with a low around 79. Heat index values as high as 106. South wind 3 to 7 mph.

Thursday

Temperature: 98°F

Wind Speed: 6 mph

Wind Direction: SW

Forecast: A slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 98. Heat index values as high as 110. Southwest wind around 6 mph. Chance of precipitation is 20%.

Thursday Night

Temperature: 78°F

Wind Speed: 2 to 6 mph

Wind Direction: S

Forecast: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Heat index values as high as 105. South wind 2 to 6 mph. Chance of precipitation is 20%.

Friday

Temperature: 97°F

Wind Speed: 2 to 7 mph

Wind Direction: S

Forecast: Sunny, with a high near 97. South wind 2 to 7 mph.

Friday Night

Temperature: 77°F

Wind Speed: 2 to 6 mph

Wind Direction: S

Forecast: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.

Independence Day

Temperature: 96°F

Wind Speed: 5 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 30%.

Saturday Night

Temperature: 76°F

Wind Speed: 1 to 5 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 30%.

Sunday

Temperature: 94°F

Wind Speed: 5 mph

Wind Direction: W

Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.

Sunday Night

Temperature: 75°F

Wind Speed: 5 mph

Wind Direction: NE

Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

Monday

Temperature: 92°F

Wind Speed: 5 mph

Wind Direction: NE

Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.

Monday Night

Temperature: 74°F

Wind Speed: 1 to 5 mph

Wind Direction: SE

Forecast: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

Tuesday

Temperature: 92°F

Wind Speed: 5 mph

Wind Direction: E

Forecast: A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. Chance of precipitation is 30%.

Tuesday Night

Temperature: 74°F

Wind Speed: 0 to 5 mph

Wind Direction: SE

Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%.