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100-degree heat dome to set up shop over southern US. Get the forecast Chevron right

Crystal City, MO

73°F
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Crystal City

Missouri

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Crystal City, MO Weather
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Winter Center
Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Wednesday, July 23

Day

7/23
97°Hi
RealFeel® 112°
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™ 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
Mostly sunny, very warm and humid
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

Max UV Index11 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindSSE 6 mph

Wind Gusts12 mph

Probability of Precipitation11%

Probability of Thunderstorms3%

Precipitation0.00 in

Cloud Cover21%

Morning

Afternoon

Night

7/23
76°Lo
RealFeel® 83°
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
Mainly clear and uncomfortably humid
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

WindSSE 5 mph

Wind Gusts9 mph

Probability of Precipitation10%

Probability of Thunderstorms2%

Precipitation0.00 in

Cloud Cover11%

Evening

Overnight

Sun & Moon

14 hrs 23 mins
Rise 5:56 AM
Set 8:19 PM
Waning Crescent
Rise 4:15 AM
Set 7:59 PM

Temperature History

7/23
High
Low
Forecast
97°
76°
Average
89°
69°
Last Year
86°
66°

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World North America United States Missouri Crystal City

Weather Near Crystal City:

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