Local Forecast

Belleville, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Belleville, IL.

No Active Alerts

Hour-by-Hour  Current Observation

Sunday 8:50 PM CDTSunday 8:50 PM

°F °C
Regional Observations →
78°F

Partly Cloudy

  • 87° / 73° High / Low
  • 78° Feels Like
  • 0% Chance of Rain

Wind

7 mph

SSE

UV Index

0

None

Humidity

0%

Dew 0°F

Sun

5:35 AM · 8:21 PM

Rise · Set

Source: ALTON/ST LOUIS R (KALN). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Today

87° 73°

Chance of Thunderstorms

Overnight: Chance of Thunderstorms

Detailed forecast

Today

A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Southeast wind around 12 mph. Chance of precipitation is 30%.

Night

A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind 6 to 9 mph. Chance of precipitation is 40%.

Monday

86° 73°

Thunderstorms Likely

Overnight: Chance of Thunderstorms

Detailed forecast

Monday

A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 11am, then showers and thunderstorms likely between 11am and 3pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. South wind around 9 mph. Chance of precipitation is 60%.

Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind 3 to 7 mph. Chance of precipitation is 50%.

Tuesday

93° 75°

Chance of Thunderstorms

Overnight: Mostly Clear

Detailed forecast

Tuesday

A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 109. Southwest wind 3 to 8 mph. Chance of precipitation is 40%.

Night

A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. South wind around 6 mph. Chance of precipitation is 20%.

Wednesday

95° 77°

Mostly Sunny

Overnight: Slight Chance of Showers

Detailed forecast

Wednesday

Sunny, with a high near 94.

Night

A slight chance of rain showers after 1am. Mostly clear, with a low around 77. Chance of precipitation is 20%.

Thursday

93° 69°

Chance of Scattered Thunderstorms

Overnight: Rain Likely

Detailed forecast

Thursday

A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 40%.

Night

A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 69. Chance of precipitation is 70%.

Belleville, IL Weather Analysis Tools