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Alton, IL

83°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
Friday, September 4

Day

9/4
98°Hi
RealFeel® 105°
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; danger of dehydration and heatstroke if outside for extended periods of time
alerts

Extreme Heat Warning

12:12 AM Thursday - 8:00 PM Saturday

Max UV Index7.0 (High)

AccuLumen Brightness Index™9 (Very Bright)

WindSW 7 mph

Wind Gusts12 mph

Probability of Precipitation5%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover13%

Morning

Afternoon

Night

9/4
73°Lo
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear to partly cloudy, warm and humid
alerts

Extreme Heat Warning

12:12 AM Thursday - 8:00 PM Saturday

WindSSW 5 mph

Wind Gusts6 mph

Probability of Precipitation25%

Probability of Thunderstorms6%

Precipitation0.00 in

Cloud Cover18%

Evening

Overnight

Sun & Moon

12 hrs 55 mins
Rise 6:32 AM
Set 7:27 PM
Last Quarter
Rise 11:56 PM
Set 3:58 PM

Temperature History

9/4
High
Low
Forecast
98°
73°
Average
84°
64°
Last Year
73°
55°

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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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