Local Forecast

Belleville, IL Weather Forecast & Alerts

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

Active Alerts 3 active

Hour-by-Hour  Current Observation

Tuesday 3:50 PM CDTTuesday 3:50 PM

°F °C
Regional Observations →
98°F

Clear

  • 100° / 77° High / Low
  • 98° Feels Like
  • 0% Chance of Rain

Wind

7 mph

SW

UV Index

7

High

Humidity

0%

Dew 0°F

Sun

6:30 AM · 7:28 PM

Rise · Set

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

5-Day Outlook

Through Saturday

Local Radar →

This Afternoon

100° 77°

Mostly Sunny

Overnight: Clear

Detailed forecast

This Afternoon

Sunny, with a high near 99. Heat index values as high as 105. South wind around 5 mph.

Night

Mostly clear, with a low around 77. Heat index values as high as 102. South wind around 6 mph.

Wednesday

98° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Sunny, with a high near 97. Heat index values as high as 104. Southwest wind 3 to 8 mph.

Night

Mostly clear, with a low around 77. Heat index values as high as 102. South wind 3 to 8 mph.

Thursday

100° 78°

Mostly Sunny

Overnight: Clear

Detailed forecast

Thursday

Sunny, with a high near 100. Southwest wind 3 to 8 mph.

Night

Mostly clear, with a low around 78.

Friday

100° 78°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Friday

Sunny, with a high near 100.

Night

Mostly clear, with a low around 77.

Saturday

100° 75°

Partly Sunny

Overnight: Partly Cloudy

Detailed forecast

Saturday

A slight chance of showers and thunderstorms after 7am. Sunny, with a high near 99. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 20%.

Belleville, IL Weather Analysis Tools