Heat Advisory issued July 27 at 10:57AM CDT until July 29 at 9:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 105 expected on Wednesday and 110 on Thursday. * WHERE...In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO and Saint Louis MO Counties. In Illinois, Madison IL, Monroe IL and Saint Clair Counties. * WHEN...From Noon Wednesday to 9 PM CDT Thursday. * IMPACTS...The combination of hot temperatures and high humidity may lead to heat illnesses.

Alton IL Weather and Radar

Updated July 28, 1:19 AM
71°
Clear
Feels like 76°
Clear
Today: Hot and humid with abundant sunshine; possible danger of dehydration and heat stroke while doing strenuous activities
Tonight: Clear
Pressure: 30.02 inHg
Visibility: 7 miles
Winds: NE 1.2 mph
Sunrise: 5:57 AM
Sunset: 8:17 PM
UV Index: 0
Precip chance: 0%
Precip today: 0 in
Dew Point: 69 F
Humidity: 93%
Call Time & Temperature
(618) 465-4545

5 Day Forecast

Tue, Jul. 27
Sunny
92° 70°
Sunny
Precip 0%
Wed, Jul. 28
Mostly sunny
97° 75°
Mostly sunny
Precip 0%
Thu, Jul. 29
Hot
100° 71°
Hot
Precip 5%
Fri, Jul. 30
Partly sunny
83° 64°
Partly sunny
Precip 42%
Sat, Jul. 31
Thunderstorms
78° 63°
Thunderstorms
Precip 72%

Radar Map

Weather data provided by AccuWeather API