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St Louis, MO

80°F
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St Louis, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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September 18 - October 2

Fri 9/18

93° /70°
55%
Hot and humid with variable clouds; a stray thunderstorm in the afternoon; possible danger of dehydration and heatstroke while doing strenuous activities
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Saturday
alerts

Air Quality Alert

3:27 PM Thursday - 8:00 PM Friday

RealFeel®103°

RealFeel Shade™98°

Max UV Index4.0 (Moderate)

WindSW 6 mph

Total Hours of Precipitation1

Total Hours of Rain1

Sat 9/19

95° /69°
8%
Partly sunny with the temperature near the record of 96; danger of dehydration and heatstroke if outside for extended periods of time
alerts

Heat Advisory

11:00 AM Tuesday - 8:00 PM Saturday

RealFeel®100°

RealFeel Shade™95°

Max UV Index5.0 (Moderate)

WindSSW 6 mph

Sun 9/20

86° /68°
25%
Partly sunny and not as hot

RealFeel®94°

RealFeel Shade™88°

Max UV Index5.0 (Moderate)

WindN 4 mph

Mon 9/21

76° /62°
55%
Times of clouds and sun with a thunderstorm; not as warm but humid

RealFeel®80°

RealFeel Shade™77°

Max UV Index3.0 (Moderate)

WindNNE 7 mph

Total Hours of Precipitation1

Total Hours of Rain1

Tue 9/22

70° /61°
19%
Pleasant and less humid with times of clouds and sun

RealFeel®70°

RealFeel Shade™67°

Max UV Index3.0 (Moderate)

WindN 7 mph

Wed 9/23

74° /60°
15%
Partly sunny and nice

RealFeel®75°

RealFeel Shade™72°

Max UV Index4.0 (Moderate)

WindN 6 mph

Thu 9/24

76° /59°
7%
Mostly sunny

RealFeel®78°

RealFeel Shade™73°

Max UV Index5.0 (Moderate)

WindNNE 5 mph

Fri 9/25

77° /60°
56%
A touch of morning rain; otherwise, mostly cloudy

RealFeel®78°

RealFeel Shade™75°

Max UV Index4.0 (Moderate)

WindNNE 6 mph

Total Hours of Precipitation1

Total Hours of Rain1

Sat 9/26

79° /60°
2%
Plenty of sunshine

RealFeel®81°

RealFeel Shade™76°

Max UV Index5.0 (Moderate)

WindNNE 6 mph

Sun 9/27

80° /62°
1%
Intervals of bright sunshine

RealFeel®83°

RealFeel Shade™80°

Max UV Index3.0 (Moderate)

WindNNE 4 mph

Mon 9/28

80° /60°
1%
Sunshine and a few clouds

RealFeel®85°

RealFeel Shade™80°

Max UV Index5.0 (Moderate)

WindNE 4 mph

Tue 9/29

78° /59°
0%
Plenty of sun

RealFeel®83°

RealFeel Shade™77°

Max UV Index5.0 (Moderate)

WindENE 5 mph

Wed 9/30

76° /56°
25%
Cloudy

RealFeel®75°

RealFeel Shade™75°

Max UV Index1.0 (Low)

WindS 6 mph

Thu 10/1

79° /63°
55%
Humid with times of clouds and sun; an afternoon thundershower

RealFeel®84°

RealFeel Shade™84°

Max UV Index3.0 (Moderate)

WindWNW 5 mph

Total Hours of Precipitation1

Total Hours of Rain1

Fri 10/2

76° /61°
63%
Rain

RealFeel®74°

RealFeel Shade™74°

Max UV Index1.0 (Low)

WindNE 10 mph

Total Hours of Precipitation4

Total Hours of Rain4

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Weather Near St Louis:

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