Local Forecast

Belleville, IL Weather Forecast & Alerts

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

Active Alerts 2 active

Hour-by-Hour  Current Observation

Sunday 4:35 AM CDTSunday 4:35 AM

°F °C
Regional Observations →
73°F

Mostly Cloudy

  • 93° / 75° High / Low
  • 73° Feels Like
  • 0% Chance of Rain

Wind

0 mph

N

UV Index

0

None

Humidity

0%

Dew 0°F

Sun

5:37 AM · 8:27 PM

Rise · Set

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

5-Day Outlook

Through Thursday

Local Radar →

Today

93° 75°

Partly Sunny

Overnight: Partly Cloudy

Detailed forecast

Today

A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 93. Heat index values as high as 110. South wind 2 to 9 mph. Chance of precipitation is 20%.

Night

Mostly clear, with a low around 75. Heat index values as high as 110. South wind 3 to 9 mph.

Monday

95° 75°

Partly Sunny

Overnight: Clear

Detailed forecast

Monday

Sunny, with a high near 95. Heat index values as high as 110. South wind 5 to 12 mph.

Night

Clear, with a low around 75. South wind 3 to 12 mph.

Tuesday

98° 77°

Sunny

Overnight: Clear

Detailed forecast

Tuesday

Sunny, with a high near 97.

Night

Clear, with a low around 75.

Wednesday

96° 77°

Mostly Sunny

Overnight: Clear

Detailed forecast

Wednesday

Sunny, with a high near 96.

Night

Mostly clear, with a low around 77.

Thursday

95° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Thursday

Sunny, with a high near 95.

Night

Mostly clear, with a low around 76.

Belleville, IL Weather Analysis Tools