Weather in DeKalb, Illinois, United States

7-Day Detailed Weather Forecast for DeKalb

Overnight

Temperature: 28°F

Wind Speed: 10 mph

Wind Direction: WNW

Forecast: Partly cloudy. Low around 28, with temperatures rising to around 34 overnight. West northwest wind around 10 mph, with gusts as high as 20 mph.

Wednesday

Temperature: 36°F

Wind Speed: 0 to 10 mph

Wind Direction: WNW

Forecast: Mostly sunny. High near 36, with temperatures falling to around 31 in the afternoon. West northwest wind 0 to 10 mph.

Wednesday Night

Temperature: 30°F

Wind Speed: 10 to 20 mph

Wind Direction: S

Forecast: Rain likely and drizzle likely after 3am. Mostly cloudy. Low around 30, with temperatures rising to around 39 overnight. South wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

Thursday

Temperature: 45°F

Wind Speed: 15 to 20 mph

Wind Direction: SW

Forecast: Rain before 3pm. Mostly cloudy, with a high near 45. Southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.

Thursday Night

Temperature: 12°F

Wind Speed: 20 to 25 mph

Wind Direction: WNW

Forecast: A chance of snow before midnight, then a chance of snow showers. Mostly cloudy, with a low around 12. West northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.

Friday

Temperature: 27°F

Wind Speed: 10 to 15 mph

Wind Direction: W

Forecast: Mostly sunny, with a high near 27.

Friday Night

Temperature: 22°F

Wind Speed: 10 to 15 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 22.

Saturday

Temperature: 43°F

Wind Speed: 10 to 15 mph

Wind Direction: WSW

Forecast: Mostly cloudy, with a high near 43.

Saturday Night

Temperature: 17°F

Wind Speed: 10 mph

Wind Direction: NW

Forecast: Partly cloudy, with a low around 17.

Sunday

Temperature: 28°F

Wind Speed: 5 to 10 mph

Wind Direction: NW

Forecast: Mostly sunny, with a high near 28.

Sunday Night

Temperature: 18°F

Wind Speed: 5 mph

Wind Direction: ENE

Forecast: Partly cloudy, with a low around 18.

Monday

Temperature: 35°F

Wind Speed: 5 to 10 mph

Wind Direction: SE

Forecast: Partly sunny, with a high near 35.

Monday Night

Temperature: 30°F

Wind Speed: 10 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 30.

Tuesday

Temperature: 41°F

Wind Speed: 10 mph

Wind Direction: WSW

Forecast: Mostly cloudy, with a high near 41.