Weather in DeKalb, Illinois, United States

7-Day Detailed Weather Forecast for DeKalb

Overnight

Temperature: 57°F

Wind Speed: 10 mph

Wind Direction: S

Forecast: A chance of showers and thunderstorms. Cloudy. Low around 57, with temperatures rising to around 60 overnight. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Thursday

Temperature: 70°F

Wind Speed: 10 to 15 mph

Wind Direction: W

Forecast: A chance of rain showers before 8am, then a slight chance of showers and thunderstorms between 8am and 9am, then scattered showers and thunderstorms between 10am and 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm. Partly sunny, with a high near 70. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Thursday Night

Temperature: 52°F

Wind Speed: 5 to 10 mph

Wind Direction: ESE

Forecast: Patchy fog after 1am. Mostly clear, with a low around 52. East southeast wind 5 to 10 mph.

Friday

Temperature: 80°F

Wind Speed: 10 to 20 mph

Wind Direction: SSE

Forecast: Patchy fog before 8am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 80. South southeast wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

Friday Night

Temperature: 43°F

Wind Speed: 15 to 20 mph

Wind Direction: SW

Forecast: A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Cloudy, with a low around 43. Southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.

Saturday

Temperature: 50°F

Wind Speed: 20 mph

Wind Direction: WNW

Forecast: Rain showers likely before 9am. Partly sunny, with a high near 50. Chance of precipitation is 70%.

Saturday Night

Temperature: 32°F

Wind Speed: 10 to 20 mph

Wind Direction: WNW

Forecast: Mostly clear, with a low around 32.

Sunday

Temperature: 51°F

Wind Speed: 10 to 20 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 51.

Sunday Night

Temperature: 32°F

Wind Speed: 5 to 15 mph

Wind Direction: NNW

Forecast: Areas of frost after 1am. Mostly clear, with a low around 32.

Monday

Temperature: 59°F

Wind Speed: 5 to 15 mph

Wind Direction: SE

Forecast: Areas of frost before 9am. Sunny, with a high near 59.

Monday Night

Temperature: 46°F

Wind Speed: 10 to 15 mph

Wind Direction: S

Forecast: Partly cloudy, with a low around 46.

Tuesday

Temperature: 72°F

Wind Speed: 15 to 20 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 72.

Tuesday Night

Temperature: 49°F

Wind Speed: 10 to 15 mph

Wind Direction: WSW

Forecast: Partly cloudy, with a low around 49.

Wednesday

Temperature: 69°F

Wind Speed: 10 to 15 mph

Wind Direction: WSW

Forecast: Mostly sunny, with a high near 69.