Alton, IL

See Radar

Current Weather Forecast for Alton

IL 62002  |   9:47am

Weather Conditions

71°
Feels Like 71°
Thunderstorms
Thunderstorm
70° 79°
UV Index
2
UV Index
Air Quality
Moderate
Air Quality
Wind
W 10 mph
Wind
Rain
0.23 in
rain

Today

Mon 5/18
77°
Highest Temperature
Thunderstorms
100%
Thunderstorms likely. Rainfall will be locally heavy at times. A few storms may be severe. High 77F. Winds S at 10 to 20 mph. Chance of rain 100%. 1 to 2 inches of rain expected.

Tonight

Mon 5/18
70°
Lowest Temperature
Partly Cloudy
24%
Cloudy early with some clearing expected late. A stray shower or thunderstorm is possible. Low around 70F. Winds S at 10 to 20 mph.

Tomorrow

Tue 5/19
77°
Highest Temperature
Scattered Thunderstorms
84%
Cloudy in the morning, then thunderstorms developing later in the day. Potential for severe thunderstorms. High 77F. Winds SW at 10 to 20 mph. Chance of rain 80%.

Local Weather Radar - Alton, IL

Live Alton Local Radar Forecast by FOX Weather

Precipitation For Alton thunder
Intermittent thunder for the next hour.

Next 12 Hours Forecast in Alton

Hourly Weather Forecast & Temperature

10AM
Thunderstorms
99%
72°
Feels Like 72°
Heavy Thunderstorms
Wind
SSW 11 mph
Wind
Pressure
1013 mb
Pressure
Humidity
82%
Humidity
UV Index
1
UV Index
Visibility
1.8mi
Visibility
Visibility
100%
Cloud Cover
11AM
Thunderstorms
76%
73°
Feels Like 73°
Heavy Thunderstorms
Wind
SSW 10 mph
Wind
Pressure
1014 mb
Pressure
Humidity
81%
Humidity
UV Index
1
UV Index
Visibility
2.5mi
Visibility
Visibility
100%
Cloud Cover
12PM
Isolated Thunderstorms
34%
70°
Feels Like 70°
Isolated Thunderstorms
Wind
S 9 mph
Wind
Pressure
1014 mb
Pressure
Humidity
89%
Humidity
UV Index
2
UV Index
Visibility
6mi
Visibility
Visibility
100%
Cloud Cover
1PM
Showers
72%
76°
Feels Like 76°
Thundershowers
Wind
S 10 mph
Wind
Pressure
1014 mb
Pressure
Humidity
80%
Humidity
UV Index
4
UV Index
Visibility
5mi
Visibility
Visibility
96%
Cloud Cover
2PM
Cloudy
22%
75°
Feels Like 75°
Cloudy
Wind
SSE 9 mph
Wind
Pressure
1014 mb
Pressure
Humidity
82%
Humidity
UV Index
4
UV Index
Visibility
5mi
Visibility
Visibility
97%
Cloud Cover
3PM
Cloudy
21%
76°
Feels Like 76°
Cloudy
Wind
SE 11 mph
Wind
Pressure
1014 mb
Pressure
Humidity
80%
Humidity
UV Index
3
UV Index
Visibility
6mi
Visibility
Visibility
95%
Cloud Cover
4PM
Thunderstorms
80%
77°
Feels Like 77°
Thunderstorms
Wind
SSE 12 mph
Wind
Pressure
1014 mb
Pressure
Humidity
77%
Humidity
UV Index
2
UV Index
Visibility
6mi
Visibility
Visibility
98%
Cloud Cover
5PM
Thunderstorms
84%
76°
Feels Like 80°
Thunderstorms
Wind
S 13 mph
Wind
Pressure
1014 mb
Pressure
Humidity
79%
Humidity
UV Index
1
UV Index
Visibility
6mi
Visibility
Visibility
94%
Cloud Cover
6PM
Thunderstorms
71%
74°
Feels Like 75°
Thunderstorms
Wind
SSW 15 mph
Wind
Pressure
1014 mb
Pressure
Humidity
81%
Humidity
UV Index
0
UV Index
Visibility
3mi
Visibility
Visibility
98%
Cloud Cover
7PM
Scattered Thunderstorms
49%
74°
Feels Like 76°
Scattered Thunderstorms
Wind
SSE 13 mph
Wind
Pressure
1013 mb
Pressure
Humidity
79%
Humidity
UV Index
0
UV Index
Visibility
7mi
Visibility
Visibility
97%
Cloud Cover
8PM
Cloudy
10%
74°
Feels Like 75°
Cloudy
Wind
SSE 13 mph
Wind
Pressure
1013 mb
Pressure
Humidity
79%
Humidity
UV Index
0
UV Index
Visibility
10mi
Visibility
Visibility
81%
Cloud Cover
9PM
Mostly Cloudy
6%
74°
Feels Like 75°
Mostly Cloudy
Wind
SSE 13 mph
Wind
Pressure
1013 mb
Pressure
Humidity
81%
Humidity
UV Index
0
UV Index
Visibility
10mi
Visibility
Visibility
78%
Cloud Cover
Mon 5/18
Mon
Thunderstorms
100%
70°
79°
Thunderstorms, some may contain heavy rain. Highs in the upper 70s and lows in the low 70s.
Feels Like
81°
Feels Like
Wind
S 15 mph
Wind
Humidity
80%
Humidity
UV Index
4
UV Index
Visibility
5:45 AM
Sunrise
Visibility
8:09 PM
Sunset
Tue 5/19
Tue
Scattered Thunderstorms
84%
60°
77°
Thunderstorms developing in the afternoon. Potential for severe thunderstorms. Highs in the upper 70s and lows in the mid 50s.
Feels Like
80°
Feels Like
Wind
SW 13 mph
Wind
Humidity
81%
Humidity
UV Index
5
UV Index
Visibility
5:44 AM
Sunrise
Visibility
8:10 PM
Sunset
Wed 5/20
Wed
Partly / Cloudy
7%
55°
68°
Partly cloudy. Highs in the upper 60s and lows in the mid 50s.
Feels Like
68°
Feels Like
Wind
NNE 11 mph
Wind
Humidity
67%
Humidity
UV Index
6
UV Index
Visibility
5:43 AM
Sunrise
Visibility
8:11 PM
Sunset
Thu 5/21
Thu
Mostly Cloudy
5%
54°
72°
More clouds than sun. Highs in the low 70s and lows in the low 60s.
Feels Like
72°
Feels Like
Wind
ENE 11 mph
Wind
Humidity
66%
Humidity
UV Index
7
UV Index
Visibility
5:43 AM
Sunrise
Visibility
8:12 PM
Sunset
Fri 5/22
Fri
Rain
83%
60°
69°
Cloudy, periods of rain. Highs in the upper 60s and lows in the low 60s.
Feels Like
69°
Feels Like
Wind
ENE 10 mph
Wind
Humidity
82%
Humidity
UV Index
4
UV Index
Visibility
5:42 AM
Sunrise
Visibility
8:12 PM
Sunset
Sat 5/23
Sat
Mostly Cloudy
24%
60°
79°
Considerable cloudiness. Highs in the upper 70s and lows in the mid 60s.
Feels Like
80°
Feels Like
Wind
S 8 mph
Wind
Humidity
74%
Humidity
UV Index
7
UV Index
Visibility
5:41 AM
Sunrise
Visibility
8:13 PM
Sunset
Sun 5/24
Sun
Scattered Showers
51%
64°
79°
Showers ending by midday. Highs in the upper 70s and lows in the mid 60s.
Feels Like
81°
Feels Like
Wind
SSW 7 mph
Wind
Humidity
72%
Humidity
UV Index
6
UV Index
Visibility
5:41 AM
Sunrise
Visibility
8:14 PM
Sunset
Mon 5/25
Mon
Scattered Thunderstorms
55%
66°
80°
A few thunderstorms possible. Highs in the low 80s and lows in the mid 60s.
Feels Like
81°
Feels Like
Wind
SSE 9 mph
Wind
Humidity
70%
Humidity
UV Index
7
UV Index
Visibility
5:40 AM
Sunrise
Visibility
8:15 PM
Sunset
Need to see beyond 12 Hours?
Find more forecast on the FREE FOX WEATHER App

Sponsored by Redfin. Housing data supplied by Redfin independent of FOX Weather.

Latest Stories from Illinois

Loading...