7 Day Weather Forecast for O'Fallon, IL

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7 Day Forecast

Monday

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Hi 32°FLo 15°F

Monday: Windy with snow showers this morning. High 32F. Winds NW at 20 to 30 mph. Chance of snow 50%. Winds could occasionally gust over 40 mph.

Monday night: Cloudy skies. Windy this evening. A few flurries or snow showers possible. Low near 15F. Winds NW at 20 to 30 mph.

Tuesday

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Hi 25°FLo 12°F

Tuesday: Cloudy skies. High near 25F. Winds NW at 15 to 25 mph.

Tuesday night: A mostly clear sky. Low 12F. Winds NW at 15 to 25 mph.

Wednesday

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Hi 28°FLo 15°F

Wednesday: Plenty of sun. Highs in the upper 20s and lows in the mid teens.

Thursday

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Hi 33°FLo 20°F

Thursday: Partly cloudy. Highs in the low 30s and lows in the low 20s.

Friday

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Hi 40°FLo 15°F

Friday: Snow showers developing in the afternoon. Highs in the low 40s and lows in the mid teens.

Saturday

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Hi 22°FLo 14°F

Saturday: Times of sun and clouds. Highs in the low 20s and lows in the mid teens.

Sunday

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Hi 32°FLo 24°F

Sunday : Mostly cloudy. Highs in the low 30s and lows in the mid 20s.

Do I need an umbrella?

No

Local Weather Radar

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Current Conditions

Light Snow, Broken Clouds

Temperature

28°F

Feels Like

16°F

Humidity

74%

Wind

NW 18 mph

Pressure

30 in

Visibility

9 mi

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Satellite Image

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Forecast High Temperatures

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