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St. Clair, MO

70°F
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St. Clair, MO Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities
Air Quality Alert

June 17 - July 31

Tue 6/17

88° /73°
25%
Humid with sun and some clouds
alerts

Air Quality Alert

3:23 PM Monday - 8:00 PM Tuesday

RealFeel®97°

RealFeel Shade™90°

Max UV Index11 (Extreme)

WindSW 5 mph

Wed 6/18

83° /66°
98%
Some sun with heavy thunderstorms, humid; breezy in the morning; storms can bring flooding downpours, hail, damaging wind gusts, and an isolated tornado

RealFeel®88°

RealFeel Shade™84°

Max UV Index4 (Moderate)

WindSSW 14 mph

Thu 6/19

85° /67°
1%
Sunny to partly cloudy and humid

RealFeel®96°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindWNW 4 mph

Fri 6/20

91° /72°
1%
Abundant sunshine

RealFeel®99°

RealFeel Shade™91°

Max UV Index11 (Extreme)

WindSSW 7 mph

Sat 6/21

94° /71°
1%
Hot with plenty of sunshine

RealFeel®101°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindSSW 10 mph

Sun 6/22

94° /73°
1%
Hot with plenty of sunshine

RealFeel®102°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindSSW 8 mph

Mon 6/23

96° /72°
1%
Remaining very warm with plenty of sunshine

RealFeel®103°

RealFeel Shade™99°

Max UV Index11 (Extreme)

WindSSW 6 mph

Tue 6/24

92° /71°
40%
Partly sunny; a morning thunderstorm in parts of the area, watch for a strong thunderstorm in the afternoon

RealFeel®101°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindSSW 7 mph

Wed 6/25

90° /70°
39%
Intervals of clouds and sun with a thunderstorm in spots

RealFeel®99°

RealFeel Shade™96°

Max UV Index7 (High)

WindSW 5 mph

Thu 6/26

90° /72°
4%
Very humid with abundant sunshine

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindS 12 mph

Fri 6/27

89° /70°
39%
More clouds than sun; humid with a thunderstorm in spots

RealFeel®99°

RealFeel Shade™94°

Max UV Index5 (Moderate)

WindWSW 6 mph

Sat 6/28

90° /71°
5%
Mostly sunny and humid

RealFeel®97°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSSW 8 mph

Sun 6/29

89° /66°
20%
Sunny and humid

RealFeel®98°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSSW 7 mph

Mon 6/30

92° /71°
20%
Sunshine and humid

RealFeel®100°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindSSW 7 mph

Tue 7/1

91° /70°
10%
Sunny and humid

RealFeel®99°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindSSW 7 mph

Wed 7/2

92° /71°
5%
Sunny and humid

RealFeel®101°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindSSW 6 mph

Thu 7/3

93° /71°
10%
Humid with sunshine

RealFeel®102°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSSW 6 mph

Fri 7/4

93° /70°
5%
Mostly sunny and humid

RealFeel®100°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSSW 7 mph

Sat 7/5

92° /72°
5%
Hot with plenty of sunshine

RealFeel®99°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 6 mph

Sun 7/6

94° /72°
5%
Hot with plenty of sun

RealFeel®99°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 6 mph

Mon 7/7

94° /71°
5%
Sunny and hot

RealFeel®100°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindWSW 5 mph

Tue 7/8

93° /72°
10%
Sunny and hot

RealFeel®100°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSW 5 mph

Wed 7/9

94° /72°
20%
Mostly sunny and hot

RealFeel®101°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindSSW 5 mph

Thu 7/10

94° /71°
10%
Mostly sunny, remaining very warm and humid

RealFeel®104°

RealFeel Shade™101°

Max UV Index11 (Extreme)

WindSSE 4 mph

Fri 7/11

93° /72°
10%
Humid with abundant sunshine

RealFeel®100°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindS 9 mph

Sat 7/12

93° /72°
25%
Humid with clouds to start, then sunshine returns

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSSW 12 mph

Sun 7/13

94° /73°
20%
Partly sunny

RealFeel®99°

RealFeel Shade™94°

Max UV Index6 (High)

WindWSW 8 mph

Mon 7/14

94° /73°
5%
Sunny and hot

RealFeel®99°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSW 7 mph

Tue 7/15

95° /72°
20%
Mostly sunny and hot

RealFeel®97°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 8 mph

Wed 7/16

95° /73°
25%
Cloudy and remaining very warm

RealFeel®98°

RealFeel Shade™98°

Max UV Index3 (Moderate)

WindN 6 mph

Thu 7/17

92° /71°
59%
Considerable cloudiness with a couple of showers and a thunderstorm; humid

RealFeel®102°

RealFeel Shade™100°

Max UV Index2 (Low)

WindN 2 mph

Fri 7/18

90° /71°
20%
Mostly sunny

RealFeel®99°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSE 4 mph

Sat 7/19

90° /70°
70%
Cloudy with showers and thunderstorms in the afternoon

RealFeel®94°

RealFeel Shade™94°

Max UV Index3 (Moderate)

WindS 9 mph

Sun 7/20

87° /67°
5%
Sunny

RealFeel®92°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindN 7 mph

Mon 7/21

86° /65°
10%
Mostly sunny

RealFeel®92°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindWNW 5 mph

Tue 7/22

87° /64°
20%
Sunshine

RealFeel®89°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindNW 8 mph

Wed 7/23

85° /63°
20%
Mostly sunny

RealFeel®89°

RealFeel Shade™82°

Max UV Index11 (Extreme)

WindNW 7 mph

Thu 7/24

85° /63°
25%
Partial sunshine

RealFeel®91°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindWNW 2 mph

Fri 7/25

86° /64°
10%
Mostly sunny

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindSE 7 mph

Sat 7/26

87° /65°
20%
Thickening clouds

RealFeel®90°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindSE 6 mph

Sun 7/27

84° /67°
56%
Intervals of clouds and sunshine with a thunderstorm in the afternoon

RealFeel®93°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindS 4 mph

Mon 7/28

86° /64°
1%
Partly sunny and less humid

RealFeel®89°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindENE 7 mph

Tue 7/29

86° /63°
55%
A couple of showers in the morning; otherwise, partly sunny

RealFeel®88°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNE 8 mph

Wed 7/30

87° /64°
0%
Partly sunny

RealFeel®89°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindNNE 7 mph

Thu 7/31

88° /63°
3%
Mostly sunny

RealFeel®94°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindNE 4 mph

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World North America United States Missouri St. Clair

Weather Near St. Clair:

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