Weather in Summit, Illinois, United States

7-Day Detailed Weather Forecast for Summit

This Afternoon

Temperature: 56°F

Wind Speed: 15 mph

Wind Direction: WSW

Forecast: Patchy fog and a slight chance of rain. Cloudy. High near 56, with temperatures falling to around 51 in the afternoon. West southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Temperature: 20°F

Wind Speed: 20 to 30 mph

Wind Direction: W

Forecast: Snow likely after 10pm. Cloudy, with a low around 20. Wind chill values as low as 1. West wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than half an inch possible.

Monday

Temperature: 25°F

Wind Speed: 20 to 30 mph

Wind Direction: WNW

Forecast: Snow likely before noon. Mostly cloudy. High near 25, with temperatures falling to around 22 in the afternoon. West northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than half an inch possible.

Monday Night

Temperature: 14°F

Wind Speed: 10 to 20 mph

Wind Direction: WNW

Forecast: Partly cloudy, with a low around 14. West northwest wind 10 to 20 mph, with gusts as high as 30 mph.

Tuesday

Temperature: 30°F

Wind Speed: 10 to 15 mph

Wind Direction: W

Forecast: Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday Night

Temperature: 25°F

Wind Speed: 10 to 15 mph

Wind Direction: W

Forecast: Mostly cloudy, with a low around 25.

Wednesday

Temperature: 32°F

Wind Speed: 10 to 15 mph

Wind Direction: NW

Forecast: A slight chance of snow after noon. Mostly cloudy, with a high near 32.

Wednesday Night

Temperature: 15°F

Wind Speed: 5 to 10 mph

Wind Direction: NW

Forecast: A chance of snow. Mostly cloudy, with a low around 15.

New Year's Day

Temperature: 22°F

Wind Speed: 10 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 22.

Thursday Night

Temperature: 13°F

Wind Speed: 5 mph

Wind Direction: W

Forecast: Partly cloudy, with a low around 13.

Friday

Temperature: 28°F

Wind Speed: 5 to 10 mph

Wind Direction: W

Forecast: Partly sunny, with a high near 28.

Friday Night

Temperature: 19°F

Wind Speed: 5 mph

Wind Direction: W

Forecast: Mostly cloudy, with a low around 19.

Saturday

Temperature: 31°F

Wind Speed: 5 to 10 mph

Wind Direction: W

Forecast: Mostly sunny, with a high near 31.

Saturday Night

Temperature: 17°F

Wind Speed: 5 mph

Wind Direction: W

Forecast: Partly cloudy, with a low around 17.