Alton, IL Weather

As of

Weather Station:Alton High School

Open weather station selector modal

28degrees Fahrenheit

Feels like:28°F

Hi: 29Lo: 19

Mostly Sunny

Live Weather Radar

Alton, IL weather radar map

Current Weather Details

Windchill
28°
Daily Rain
0"
Dew point
20°
Monthly Rain
0"
Humidity
73%
Avg. Wind
ESE 2 mph
Pressure
30.43" ↓
Wind Gust
E 7 mph
Sunrise
7:04 AM
Moon
Waning Gibbous
Sunset
5:25 PM
UV Index
2 (Low)

Weather Forecast

  • Today

    Hi

    Partly sunny. Highs in the lower 30s. North winds around 5 mph.

  • Tonight

    Lo

    Mostly clear in the evening then becoming partly cloudy. Lows around 14. North winds around 5 mph becoming southwest after midnight.

Alton, IL 10-day weather forecast

AIR QUALITY

35 | Fair

Top Triggers:pm25
Air quality data provided by Ambee
View Today's Air Quality details for Alton, IL

POLLEN COUNT & ALLERGY FORECAST

0.3 Low

Predominant Pollen:Cedar/Juniper
View the Pollen forecast details

LIGHTNING MAP

Closest strike in the last 30 minutes:2314.9 miles

No Lightning Nearby

Real-time lightning alerts & live Map