Weather in Alton, Illinois, United States

7-Day Detailed Weather Forecast for Alton

Tonight

Temperature: 64°F

Wind Speed: 6 mph

Wind Direction: NE

Forecast: Mostly clear, with a low around 64. Northeast wind around 6 mph.

Thursday

Temperature: 84°F

Wind Speed: 6 to 9 mph

Wind Direction: NE

Forecast: Mostly sunny, with a high near 84. Northeast wind 6 to 9 mph.

Thursday Night

Temperature: 65°F

Wind Speed: 2 to 8 mph

Wind Direction: NE

Forecast: Mostly clear, with a low around 65. Northeast wind 2 to 8 mph.

Friday

Temperature: 87°F

Wind Speed: 5 mph

Wind Direction: NE

Forecast: Sunny, with a high near 87. Northeast wind around 5 mph.

Friday Night

Temperature: 66°F

Wind Speed: 3 mph

Wind Direction: E

Forecast: Mostly clear, with a low around 66. East wind around 3 mph.

Saturday

Temperature: 86°F

Wind Speed: 2 to 7 mph

Wind Direction: W

Forecast: Mostly sunny, with a high near 86.

Saturday Night

Temperature: 61°F

Wind Speed: 7 mph

Wind Direction: N

Forecast: Mostly clear, with a low around 61.

Sunday

Temperature: 80°F

Wind Speed: 5 to 10 mph

Wind Direction: NW

Forecast: Sunny, with a high near 80.

Sunday Night

Temperature: 57°F

Wind Speed: 3 to 9 mph

Wind Direction: NW

Forecast: Mostly clear, with a low around 57.

Monday

Temperature: 76°F

Wind Speed: 5 to 9 mph

Wind Direction: NW

Forecast: Sunny, with a high near 76.

Monday Night

Temperature: 55°F

Wind Speed: 2 to 7 mph

Wind Direction: N

Forecast: Partly cloudy, with a low around 55.

Tuesday

Temperature: 76°F

Wind Speed: 2 to 6 mph

Wind Direction: NW

Forecast: Mostly sunny, with a high near 76.

Tuesday Night

Temperature: 55°F

Wind Speed: 5 mph

Wind Direction: N

Forecast: Partly cloudy, with a low around 55.

Wednesday

Temperature: 78°F

Wind Speed: 2 to 6 mph

Wind Direction: N

Forecast: Mostly sunny, with a high near 78.