Weather in St. Charles, Illinois, United States

7-Day Detailed Weather Forecast for St. Charles

Tonight

Temperature: 52°F

Wind Speed: 5 mph

Wind Direction: ESE

Forecast: Widespread fog after midnight. Mostly cloudy, with a low around 52. East southeast wind around 5 mph, with gusts as high as 15 mph.

Friday

Temperature: 81°F

Wind Speed: 5 to 20 mph

Wind Direction: SSE

Forecast: Widespread fog before 8am, then a chance of showers and thunderstorms. Partly sunny. High near 81, with temperatures falling to around 78 in the afternoon. South southeast wind 5 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Friday Night

Temperature: 42°F

Wind Speed: 15 to 20 mph

Wind Direction: SSW

Forecast: Showers and thunderstorms before 10pm, then showers and thunderstorms. Cloudy. Low around 42, with temperatures rising to around 48 overnight. South southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Saturday

Temperature: 54°F

Wind Speed: 20 mph

Wind Direction: WNW

Forecast: Showers and thunderstorms before 1pm. Partly sunny, with a high near 54. West northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

Saturday Night

Temperature: 33°F

Wind Speed: 10 to 20 mph

Wind Direction: WNW

Forecast: Mostly clear, with a low around 33. West northwest wind 10 to 20 mph, with gusts as high as 30 mph.

Sunday

Temperature: 51°F

Wind Speed: 10 to 20 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 51.

Sunday Night

Temperature: 31°F

Wind Speed: 0 to 15 mph

Wind Direction: N

Forecast: Areas of frost after 2am. Partly cloudy, with a low around 31.

Monday

Temperature: 59°F

Wind Speed: 5 to 10 mph

Wind Direction: SE

Forecast: Areas of frost before 9am. Sunny, with a high near 59.

Monday Night

Temperature: 48°F

Wind Speed: 10 to 15 mph

Wind Direction: S

Forecast: Partly cloudy, with a low around 48.

Tuesday

Temperature: 73°F

Wind Speed: 15 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 73.

Tuesday Night

Temperature: 49°F

Wind Speed: 5 to 15 mph

Wind Direction: WNW

Forecast: Partly cloudy, with a low around 49.

Wednesday

Temperature: 72°F

Wind Speed: 5 to 10 mph

Wind Direction: NE

Forecast: Sunny, with a high near 72.

Wednesday Night

Temperature: 49°F

Wind Speed: 5 to 10 mph

Wind Direction: E

Forecast: Mostly clear, with a low around 49.

Thursday

Temperature: 72°F

Wind Speed: 5 to 10 mph

Wind Direction: SE

Forecast: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 72.