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Alton, IL

75°F
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Alton, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Thursday, September 3

Day

9/3
99°Hi
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
Mostly sunny and sweltering heat; caution advised if outside for extended periods of time
alerts

Heat Advisory

12:00 PM Monday - 8:00 PM Saturday

Max UV Index7.0 (High)

AccuLumen Brightness Index™9 (Very Bright)

WindSW 8 mph

Wind Gusts13 mph

Probability of Precipitation5%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover13%

Morning

Afternoon

Night

9/3
74°Lo
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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Clear, warm and humid
alerts

Heat Advisory

12:00 PM Monday - 8:00 PM Saturday

WindS 6 mph

Wind Gusts12 mph

Probability of Precipitation5%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover7%

Evening

Overnight

Sun & Moon

12 hrs 57 mins
Rise 6:31 AM
Set 7:28 PM
Waning Gibbous
Rise 10:59 PM
Set 2:56 PM

Temperature History

9/3
High
Low
Forecast
99°
74°
Average
84°
64°
Last Year
85°
54°

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World North America United States Illinois Alton

Weather Near Alton:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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