Weather in Belleville, Illinois, United States

7-Day Detailed Weather Forecast for Belleville

Tonight

Temperature: 76°F

Wind Speed: 3 mph

Wind Direction: SW

Forecast: Partly cloudy, with a low around 76. Southwest wind around 3 mph.

Sunday

Temperature: 95°F

Wind Speed: 3 to 7 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 95. Heat index values as high as 110. Southwest wind 3 to 7 mph.

Sunday Night

Temperature: 76°F

Wind Speed: 2 to 6 mph

Wind Direction: SE

Forecast: A chance of showers and thunderstorms between 7pm and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 76. Heat index values as high as 107. Southeast wind 2 to 6 mph. Chance of precipitation is 30%.

Monday

Temperature: 93°F

Wind Speed: 2 to 6 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 2 to 6 mph. Chance of precipitation is 30%.

Monday Night

Temperature: 77°F

Wind Speed: 5 mph

Wind Direction: SE

Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77. Southeast wind around 5 mph. Chance of precipitation is 20%.

Tuesday

Temperature: 96°F

Wind Speed: 2 to 6 mph

Wind Direction: SE

Forecast: Mostly sunny, with a high near 96.

Tuesday Night

Temperature: 77°F

Wind Speed: 6 mph

Wind Direction: SE

Forecast: Mostly clear, with a low around 77.

Wednesday

Temperature: 98°F

Wind Speed: 6 mph

Wind Direction: S

Forecast: Sunny, with a high near 98.

Wednesday Night

Temperature: 78°F

Wind Speed: 6 mph

Wind Direction: S

Forecast: Mostly clear, with a low around 78.

Thursday

Temperature: 99°F

Wind Speed: 3 to 7 mph

Wind Direction: S

Forecast: Sunny, with a high near 99.

Thursday Night

Temperature: 78°F

Wind Speed: 6 mph

Wind Direction: S

Forecast: Mostly clear, with a low around 78.

Friday

Temperature: 97°F

Wind Speed: 3 to 7 mph

Wind Direction: S

Forecast: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Chance of precipitation is 20%.

Friday Night

Temperature: 77°F

Wind Speed: 6 mph

Wind Direction: S

Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77. Chance of precipitation is 20%.

Saturday

Temperature: 96°F

Wind Speed: 3 to 7 mph

Wind Direction: S

Forecast: A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 20%.