Current Weather
4:09 PM
81°F
Sunny
RealFeel® 81°
Pleasant
RealFeel Shade™ 78°
Pleasant
RealFeel®
81°
RealFeel Shade™
78°
Max UV Index
2.6 (Moderate)
Wind
SW 8 mph
Wind Gusts
15 mph
Humidity
41%
Indoor Humidity
41% (Ideal Humidity)
Dew Point
55° F
Pressure
↓ 29.98 in
Cloud Cover
0%
Visibility
34 mi
Cloud Ceiling
33000 ft
Day
4/21
81°Hi
RealFeel®
81°
Pleasant
RealFeel Shade™
78°
Pleasant
Mostly sunny, breezy and warmer
Max UV Index8.0 (Very High)
AccuLumen Brightness Index™9 (Very Bright)
WindSW 14 mph
Wind Gusts31 mph
Probability of Precipitation4%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover13%
Night
4/21
57°Lo
RealFeel®
53°
Cool
Mainly clear; good conditions for viewing the meteor shower
WindSW 10 mph
Wind Gusts21 mph
Probability of Precipitation10%
Probability of Thunderstorms1%
Precipitation0.00 in
Cloud Cover23%
Sun & Moon
13 hrs 28 mins
Rise
6:16 AM
Set
7:44 PM
Waxing Crescent
Rise
9:12 AM
Set
1:15 AM
Temperature History
4/21High
Low
Forecast
81°
57°
Average
68°
47°
Last Year
67°
49°
Current Weather Conditions in Alton
Alton, Illinois is currently Sunny with a temperature of 81°. The current RealFeel® Temperature is 81° (Pleasant) based on observed conditions including 41% humidity, 0% cloud cover, a UV index of 3, and winds of 8 mph. In shade, the RealFeel Shade™ is 78°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Alton, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.