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

Chester, IL

82°F
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Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Monday, June 23

Current Weather

4:13 AM

82°F
Clear
RealFeel® 93°
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
RealFeel®
93°
Wind
SE 3 mph
Wind Gusts
5 mph
Humidity
85%
Indoor Humidity
85% (Extremely Humid)
Dew Point
77° F
Pressure
↑ 30.18 in
Cloud Cover
0%
Visibility
10 mi
Cloud Ceiling
33400 ft

Day

6/23
95°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™ 98°
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 hot; a thunderstorm on the prowl this afternoon
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Tuesday

Max UV Index11 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindS 8 mph

Wind Gusts13 mph

Probability of Precipitation40%

Probability of Thunderstorms24%

Precipitation0.04 in

Rain0.04 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover21%

Morning

Afternoon

Night

6/23
75°Lo
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear and uncomfortably humid
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Tuesday

WindS 6 mph

Wind Gusts10 mph

Probability of Precipitation8%

Probability of Thunderstorms2%

Precipitation0.00 in

Cloud Cover9%

Evening

Overnight

Sun & Moon

14 hrs 47 mins
Rise 5:38 AM
Set 8:25 PM
Waning Crescent
Rise 3:28 AM
Set 7:07 PM

Temperature History

6/23
High
Low
Forecast
95°
75°
Average
88°
65°
Last Year
91°
72°
Record
101°
1988
48°
1902

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Weather Near Chester:

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