Alton, IL Weather - Find Local Weather

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Alton, Illinois Weather

Lat: 38.90N, Lon: 90.15W
Wx Zone: ILZ100 ICAO Used: KALN
Issued 358 PM EDT Fri Jun 22 2018 Valid Sat Jun 23 2018 - Mon Jun 25 2018 ...Severe thunderstorm potential will be greatest across portions of the central and southern Plains throughout the weekend... ...Flash flooding concerns will lessen across the East beginning Saturday while they remain across portions of the Plains and lower Mississippi valley... ...Abundant heat in store for California and the Desert Southwest while fire weather concerns loom over the Four Corners regio...
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Current Conditions

Overcast, 0004 black low cloud
Overcast
70°F
Updated: 06/22 7:17 pm
Feels Like:
70°F
Humidity: 88%
Wind:
WNW 9 mph
Barometer:
29.74 in
Visibility:
10 mi

Sun/Moon Info.

Cloud Cover: 100%
UV Index: 7
Sunrise: 05:36 AM
Sunset: 08:30 PM
Moonrise: 03:21 PM
Moonset: 02:19 AM
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Update is local observation time. What time is it in Alton? 7:17 PM Friday, June 22, 2018

Shut the door not that it lets in the cold but that it lets out the coziness. ―Mark Twain

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Illinois Weather Forecast Maps

Alton Weather Forecast

7 day Outlook

Alton, IL Weather Forecast Dated: 550 PM CDT Fri Jun 22 2018
Includes the Counties: Madison County Il, Including The Cities Of Alton And Edwardsville
Tonight
Chance Of T-Storm
Tonight... Mostly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Low in the mid 60s. Northwest wind around 10 mph in the evening becoming light after midnight.
Sat
Mostly Cloudy
Saturday... Mostly cloudy. High in the lower 80s. West wind around 10 mph.
Sat Night
Chance Of T-Storm
Saturday Night... Partly cloudy with a 20 percent chance of showers and thunderstorms. Low in the upper 60s. Light wind.
Sun
Chance Of T-Storm
Sunday... Partly cloudy. A 20 percent chance of showers and thunderstorms in the afternoon. High around 90. Light wind.
Sun Night
Chance Of T-Storm
Sunday Night... Partly cloudy. A 30 percent chance of showers and thunderstorms after midnight. Low around 70. Light wind.
Mon
Chance Of T-Storm
Monday... Partly sunny in the morning then becoming mostly cloudy. A 40 percent chance of showers and thunderstorms. High around 90.
Mon Night
Chance Of T-Storm
Monday Night... Partly cloudy with a 30 percent chance of showers and thunderstorms. Low in the lower 70s.
Tue
Chance Of T-Storm
Tuesday... Hot and humid. Partly sunny with a 30 percent chance of showers and thunderstorms. High in the lower 90s. Heat index readings of around 100.
Tue Night
Chance Of T-Storm
Tuesday Night... Partly cloudy with a 40 percent chance of showers and thunderstorms. Low in the mid 70s.
Wed
Chance Of T-Storm
Wednesday... Hot and humid. Partly cloudy with a 20 percent chance of showers and thunderstorms. High in the mid 90s. Heat index readings of around 106.
Wed Night
Partly Cloudy
Wednesday Night... Partly cloudy. Low in the mid 70s. Heat index readings of around 100.
Thu
Mostly Sunny
Thursday... Hot and humid. Mostly sunny. High in the mid 90s. Heat index readings of around 109.
Thu Night
Partly Cloudy
Thursday Night... Partly cloudy. Low in the lower 70s. High in the mid 90s. Heat index readings of around 107.