Hourly Weather Forecast - Alton, IL

1 AM
65°F
0%
7mph
S
Clear
Humidity
87%
Feels like
65°F
Dew Point
61°F
2 AM
64°F
0%
6mph
S
Mostly Clear
Humidity
88%
Feels like
64°F
Dew Point
60°F
3 AM
63°F
0%
6mph
SSW
Mostly Clear
Humidity
89%
Feels like
63°F
Dew Point
60°F
4 AM
63°F
0%
5mph
SSW
Hazy
Humidity
91%
Feels like
63°F
Dew Point
60°F
5 AM
63°F
0%
5mph
S
Hazy
Humidity
91%
Feels like
63°F
Dew Point
60°F
6 AM
63°F
0%
4mph
S
Hazy
Humidity
91%
Feels like
63°F
Dew Point
60°F
7 AM
63°F
0%
4mph
S
Mostly Clear
Humidity
89%
Feels like
63°F
Dew Point
60°F
7:20 AM
8 AM
64°F
0%
5mph
S
Mostly Sunny
Humidity
89%
Feels like
64°F
Dew Point
61°F
9 AM
67°F
0%
6mph
SSW
Mostly Sunny
Humidity
87%
Feels like
67°F
Dew Point
63°F
10 AM
69°F
0%
6mph
SSW
Mostly Sunny
Humidity
84%
Feels like
69°F
Dew Point
64°F
11 AM
72°F
0%
8mph
SSW
Mostly Sunny
Humidity
78%
Feels like
72°F
Dew Point
65°F
12 PM
74°F
0%
9mph
SSW
Partly Cloudy
Humidity
72%
Feels like
74°F
Dew Point
65°F
1 PM
76°F
0%
10mph
SSW
Mostly Sunny
Humidity
69%
Feels like
76°F
Dew Point
65°F
2 PM
78°F
10%
10mph
SSW
Mostly Sunny
Humidity
63%
Feels like
78°F
Dew Point
65°F
3 PM
79°F
10%
11mph
S
Mostly Sunny
Humidity
60%
Feels like
79°F
Dew Point
64°F
4 PM
80°F
10%
11mph
S
Mostly Sunny
Humidity
60%
Feels like
80°F
Dew Point
65°F
5 PM
79°F
10%
11mph
S
Partly Cloudy
Humidity
61%
Feels like
79°F
Dew Point
64°F
6 PM
76°F
10%
11mph
S
Partly Cloudy
Humidity
68%
Feels like
76°F
Dew Point
65°F
7 PM
73°F
10%
10mph
S
Partly Cloudy
Humidity
74%
Feels like
73°F
Dew Point
64°F
7:02 PM
8 PM
71°F
10%
10mph
S
Partly Cloudy
Humidity
79%
Feels like
71°F
Dew Point
64°F
9 PM
70°F
10%
10mph
S
Partly Cloudy
Humidity
81%
Feels like
70°F
Dew Point
64°F
10 PM
70°F
10%
10mph
SSW
Partly Cloudy
Humidity
84%
Feels like
70°F
Dew Point
65°F
11 PM
70°F
30%
9mph
SSW
30% Chance Rain Showers
Humidity
84%
Feels like
70°F
Dew Point
65°F

Today's Severe Weather Outlook

Potent Thunderstorms Pepper Deep South and Southeast U.S.

Dangerous weather will stick around well after sunset across the Deep South and Southeast.

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Weekly Drought Map for March 5, 2026

Drought Worsens Nationwide Despite Multiple Disturbances

A tornado on the ground in Hildreth, Neb., on June 14, 2014 (NOAA Photo Library/Ken Engquist).

Tornadoes and Road Safety -- Do's and Don't's

A pothole big enough to hold a traffic cone and garbage. (David Shankbone, Wikimedia Common)

Potholes: A Springtime Driving Menace

This John Deere riding mower continues to hum along. (Wikimedia Commons)

Spring Mower and Power Tool Seasonal Checklist

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