7 Day Weather Forecast for Alton, IL

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7 Day Forecast

Friday

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Hi 100°F

Friday: A few clouds early, otherwise mostly sunny. High 101F. Winds SW at 5 to 10 mph.

Friday night: Some clouds early will give way to generally clear conditions overnight. Low near 80F. Winds SSW at 5 to 10 mph.

Lo 78°F

Saturday

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Hi 101°F

Saturday: Sunny. Highs 100 to 104F and lows in the upper 70s.

Lo 80°F

Sunday

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Hi 102°F

Sunday: Morning thunderstorms. Highs in the low 90s and lows in the low 70s.

Lo 78°F

Monday

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Hi 93°F

Monday: Mix of sun and clouds. Highs in the upper 80s and lows in the mid 60s.

Lo 71°F

Tuesday

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Hi 88°F

Tuesday: A few clouds. Highs in the upper 80s and lows in the upper 60s.

Lo 66°F

Wednesday

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Hi 89°F

Wednesday : Mostly sunny. Highs in the low 90s and lows in the low 70s.

Lo 67°F

Thursday

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Hi 93°F

Thursday: A mix of clouds and sun. Continued hot and humid. High around 100F. Winds W at 5 to 10 mph.

Thursday night: Clear skies. Low 78F. Winds SW at 5 to 10 mph.

Lo 72°F

Local Weather Radar

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Current Conditions

Clear

Temperature

80°F

Feels Like

84°F

Humidity

85%

Wind

SE 3 mph

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Forecast High Temperatures

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