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Over 250 million face dangerous heat dome into 4th of July weekend. Click for details. Chevron right
Where will there be storms into 4th of July weekend? Click for the forecast. Chevron right

St. Charles, MO

81°F
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St. Charles, MO 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, July 2

Day

7/2
97°Hi
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
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
Hot and humid with hazy sunshine; a thunderstorm around in the afternoon; caution advised if outside for extended periods of time
alerts

Extreme Heat Warning

12:00 PM Sunday - 10:00 PM Friday

Max UV Index11.0 (Extreme)

AccuLumen Brightness Index™7 (Bright)

WindSSW 7 mph

Wind Gusts13 mph

Probability of Precipitation55%

Probability of Thunderstorms50%

Precipitation0.04 in

Rain0.04 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover45%

Morning

Afternoon

Night

7/2
78°Lo
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Mostly cloudy, very warm and humid
alerts

Extreme Heat Warning

12:00 PM Sunday - 10:00 PM Friday

WindS 6 mph

Wind Gusts10 mph

Probability of Precipitation16%

Probability of Thunderstorms4%

Precipitation0.00 in

Cloud Cover76%

Evening

Overnight

Sun & Moon

14 hrs 50 mins
Rise 5:41 AM
Set 8:31 PM
Waning Gibbous
Rise 10:31 PM
Set 9:01 AM

Temperature History

7/2
High
Low
Forecast
97°
78°
Average
89°
70°
Last Year
89°
67°
Record
101°
1933
56°
2001

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World North America United States Missouri St. Charles

Weather Near St. Charles:

  • O'Fallon, MO
  • Springfield, IL
  • St. Louis, MO
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