Current Weather
10:55 AM
86°F
Partly sunny
RealFeel® 104°
Very Hot
RealFeel Shade™ 94°
Hot
RealFeel®
104°
RealFeel Shade™
94°
Heat Index
94°
Max UV Index
7.4 (High)
Wind
NNE 1 mph
Wind Gusts
2 mph
Humidity
68%
Indoor Humidity
68% (Extremely Humid)
Dew Point
74° F
Pressure
↔ 30.07 in
Cloud Cover
36%
Visibility
15 mi
Cloud Ceiling
40000 ft
Day
7/8
87°Hi
RealFeel®
104°
Very Hot
RealFeel Shade™
94°
Hot
Humid with sunshine interrupted by clouds at times; a thunderstorm in spots this afternoon
Max UV Index11.0 (Extreme)
AccuLumen Brightness Index™8 (Bright)
WindSE 5 mph
Wind Gusts8 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.04 in
Rain0.04 in
Hours of Precipitation0.5
Hours of Rain0.5
Cloud Cover38%
Night
7/8
70°Lo
RealFeel®
73°
Pleasant
Clear to partly cloudy and humid
WindSSE 6 mph
Wind Gusts7 mph
Probability of Precipitation3%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover12%
Sun & Moon
14 hrs 46 mins
Rise
5:43 AM
Set
8:29 PM
Waning Crescent
Rise
12:30 AM
Set
2:27 PM
Temperature History
7/8High
Low
Forecast
87°
70°
Average
88°
69°
Last Year
88°
68°
Current Weather Conditions in Alton
Alton, Illinois is currently Partly sunny with a temperature of 86°. The current RealFeel® Temperature is 104° (Very Hot) based on observed conditions including 68% humidity, 36% cloud cover, a UV index of 7, and winds of 1 mph. In shade, the RealFeel Shade™ is 94°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Alton, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.