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Dangerous heat wave to expand east early this week, affecting 170 million people. Details here Chevron right

Upper Alton, IL

78°F
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Winter Center
Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Wednesday, June 25

Day

6/25
94°Hi
RealFeel® 103°
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™ 96°
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
Hot with plenty of sunshine; danger of dehydration and heatstroke if outside for extended periods of time
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

Max UV Index11 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindSSW 7 mph

Wind Gusts13 mph

Probability of Precipitation22%

Probability of Thunderstorms5%

Precipitation0.00 in

Cloud Cover9%

Morning

Afternoon

Night

6/25
75°Lo
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear, warm and humid
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

WindS 5 mph

Wind Gusts7 mph

Probability of Precipitation17%

Probability of Thunderstorms4%

Precipitation0.00 in

Cloud Cover10%

Evening

Overnight

Sun & Moon

14 hrs 54 mins
Rise 5:36 AM
Set 8:30 PM
New Moon
Rise 5:22 AM
Set 9:23 PM

Temperature History

6/25
High
Low
Forecast
94°
75°
Average
86°
68°
Last Year
100°
73°

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Weather Near Upper Alton:

  • O'Fallon, MO
  • St. Charles, MO
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