Weather in O'Fallon, Missouri, United States

7-Day Detailed Weather Forecast for O'Fallon

Tonight

Temperature: 53°F

Wind Speed: 10 mph

Wind Direction: SW

Forecast: Partly cloudy, with a low around 53. Southwest wind around 10 mph.

Wednesday

Temperature: 68°F

Wind Speed: 7 to 15 mph

Wind Direction: NW

Forecast: Sunny. High near 68, with temperatures falling to around 60 in the afternoon. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.

Wednesday Night

Temperature: 38°F

Wind Speed: 2 to 6 mph

Wind Direction: N

Forecast: Clear, with a low around 38. North wind 2 to 6 mph.

Thursday

Temperature: 64°F

Wind Speed: 5 to 13 mph

Wind Direction: SE

Forecast: Sunny, with a high near 64. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.

Thursday Night

Temperature: 54°F

Wind Speed: 10 mph

Wind Direction: S

Forecast: A chance of rain showers after midnight. Mostly cloudy. Low around 54, with temperatures rising to around 59 overnight. South wind around 10 mph. Chance of precipitation is 30%.

Friday

Temperature: 71°F

Wind Speed: 8 to 12 mph

Wind Direction: W

Forecast: A slight chance of rain showers before noon. Mostly sunny. High near 71, with temperatures falling to around 65 in the afternoon. Chance of precipitation is 20%.

Friday Night

Temperature: 43°F

Wind Speed: 2 to 6 mph

Wind Direction: W

Forecast: Mostly clear, with a low around 43.

Saturday

Temperature: 67°F

Wind Speed: 2 to 10 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 67.

Saturday Night

Temperature: 38°F

Wind Speed: 8 to 13 mph

Wind Direction: W

Forecast: A slight chance of rain before midnight. Partly cloudy, with a low around 38. Chance of precipitation is 20%.

Sunday

Temperature: 44°F

Wind Speed: 12 to 15 mph

Wind Direction: NW

Forecast: Mostly sunny, with a high near 44.

Sunday Night

Temperature: 25°F

Wind Speed: 7 to 10 mph

Wind Direction: NW

Forecast: Partly cloudy, with a low around 25.

Monday

Temperature: 43°F

Wind Speed: 6 to 9 mph

Wind Direction: NW

Forecast: Sunny, with a high near 43.

Monday Night

Temperature: 27°F

Wind Speed: 6 mph

Wind Direction: W

Forecast: Mostly clear, with a low around 27.

Veterans Day

Temperature: 55°F

Wind Speed: 6 to 13 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 55.