Weather in Alton, Illinois, United States

7-Day Detailed Weather Forecast for Alton

Today

Temperature: 57°F

Wind Speed: 14 to 20 mph

Wind Direction: SW

Forecast: Rain showers before 11am, then showers and thunderstorms between 11am and 4pm. Partly sunny. High near 57, with temperatures falling to around 45 in the afternoon. Southwest wind 14 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 90%.

Tonight

Temperature: 23°F

Wind Speed: 15 to 21 mph

Wind Direction: NW

Forecast: Scattered snow showers between 8pm and midnight. Mostly cloudy, with a low around 23. Northwest wind 15 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

Friday

Temperature: 39°F

Wind Speed: 8 to 13 mph

Wind Direction: SW

Forecast: Sunny, with a high near 39. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.

Friday Night

Temperature: 32°F

Wind Speed: 12 mph

Wind Direction: S

Forecast: Partly cloudy, with a low around 32. South wind around 12 mph.

Saturday

Temperature: 55°F

Wind Speed: 12 mph

Wind Direction: SW

Forecast: Mostly sunny. High near 55, with temperatures falling to around 49 in the afternoon. Southwest wind around 12 mph.

Saturday Night

Temperature: 27°F

Wind Speed: 3 to 9 mph

Wind Direction: NW

Forecast: Partly cloudy, with a low around 27.

Sunday

Temperature: 43°F

Wind Speed: 6 mph

Wind Direction: N

Forecast: Mostly sunny, with a high near 43.

Sunday Night

Temperature: 29°F

Wind Speed: 5 to 8 mph

Wind Direction: E

Forecast: Mostly cloudy, with a low around 29.

Monday

Temperature: 46°F

Wind Speed: 10 mph

Wind Direction: SE

Forecast: Partly sunny, with a high near 46.

Monday Night

Temperature: 40°F

Wind Speed: 9 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 40.

Tuesday

Temperature: 59°F

Wind Speed: 9 mph

Wind Direction: S

Forecast: Partly sunny, with a high near 59.

Tuesday Night

Temperature: 46°F

Wind Speed: 6 mph

Wind Direction: SE

Forecast: Mostly cloudy, with a low around 46.

Wednesday

Temperature: 62°F

Wind Speed: 6 to 9 mph

Wind Direction: SE

Forecast: A slight chance of rain after noon. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.

Wednesday Night

Temperature: 51°F

Wind Speed: 8 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 51.