Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Flash floods kill 2 in New Jersey, strand subway riders in NYC Chevron right
Tropical rainstorm soaks Florida, could strengthen in Gulf before targeting Louisiana Chevron right

Alton, IL

72°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Alton

Illinois

72°
No results found.
Try searching for a city, zip code or point of interest.
settings
Alton, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

 Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Flood Advisory

Today's Weather

Tue, Jul 15

Humid with clouds and breaks of sun; afternoon thunderstorms Hi: 88°

Tonight: A thunderstorm in spots this evening; otherwise, partly cloudy and humid Lo: 72°

Current Weather

5:39 PM

72°F
RealFeel® 77°
Mostly cloudy More Details
RealFeel Shade™ 75°
Wind SE 4 mph
Wind Gusts 8 mph
Air Quality Fair

MINUTECAST™

Rain starting in 42 min

Now
6:39 PM

Alton Weather Radar

Alton Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

6 PM 80°
rain drop 49%
7 PM 78°
rain drop 70%
8 PM 78°
rain drop 40%
9 PM 78°
rain drop 34%
10 PM 76°
rain drop 37%
11 PM 75°
rain drop 47%
12 AM 75°
rain drop 51%
1 AM 74°
rain drop 47%
2 AM 73°
rain drop 14%
3 AM 73°
rain drop 14%
4 AM 73°
rain drop 14%
5 AM 72°
rain drop 14%

10-Day Weather Forecast

Today

7/15

88° 72°

Humid; afternoon t-storms

Night: Humid; a t-storm around early
90%

Wed

7/16

91° 73°

A t-storm around in the p.m.

Mostly cloudy and humid
40%

Thu

7/17

84° 71°

A shower and thunderstorm

Clouds, a thunderstorm; humid
65%

Fri

7/18

85° 73°

Humid with a t-storm in spots

Humid with a t-storm in spots
41%

Sat

7/19

86° 72°

Humid with a thunderstorm

Clouds breaking; humid
80%

Sun

7/20

88° 73°

Strong a.m. t-storms; humid

Some clouds, warm and humid
66%

Mon

7/21

86° 73°

A t-storm around in the p.m.

Partly cloudy and humid
39%

Tue

7/22

93° 74°

Sunny, hot and humid

Clear, warm and very humid
4%

Wed

7/23

97° 73°

Sunny, hot and very humid

Clear, warm and very humid
1%

Thu

7/24

93° 73°

Sunny, hot and very humid

Clear, warm and very humid
1%

Sun & Moon

14 hrs 39 mins
Rise 5:47 AM
Set 8:26 PM
Waning Gibbous
Rise 11:20 PM
Set 11:59 AM

Air Quality

See More
Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Extreme Data is not supported in this location

Top Stories

Weather News

Inside the grueling recovery effort after Texas’ deadly flood

6 hours ago

Weather Forecasts

Flood-weary Texas finally drying out, but near 100-degree heat looms

2 hours ago

Hurricane

Tropical Rainstorm to drench Florida, Gulf Coast

3 hours ago

Weather News

Grand Canyon fires force closures

12 hours ago

Weather Forecasts

Flash flood dangers far from over as storms reload across US

3 hours ago

 More Stories

Featured Stories

Astronomy

Noctilucent clouds shimmer in summer sky

1 day ago

Recreation

Yellowstone’s landscape shifts again with discovery of new hot pool

1 day ago

Weather News

Orcas are bringing humans gifts of food – but why?

4 days ago

Weather News

Giant shoes found spark mystery around the soldiers of ancient Rome

1 day ago

Weather News

It’s not just humans – chimpanzees also like to follow trends

1 day ago
World North America United States Illinois Alton

Weather Near Alton:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information

...

...

...