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St. Peters, MO

75°F
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St. Peters, MO Weather
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Winter Center

Today Hourly

Daily

Radar MinuteCast Monthly Air Quality Health & Activities
Extreme Heat Warning

July 19 - September 1

Sat 7/19

93° /76°
70%
Humid with sunshine and some clouds; a thunderstorm in spots early in the afternoon
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Wednesday

RealFeel®105°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSW 8 mph

Sun 7/20

97° /77°
25%
Partly sunny and hot; caution advised if outside for extended periods of time
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Wednesday

RealFeel®108°

RealFeel Shade™101°

Max UV Index11 (Extreme)

WindWSW 6 mph

Mon 7/21

94° /74°
16%
Hot and humid with times of clouds and sun; a shower cannot be ruled out
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Wednesday

RealFeel®111°

RealFeel Shade™101°

Max UV Index7 (High)

WindSSW 2 mph

Tue 7/22

97° /74°
40%
Partly sunny and hot with a thunderstorm in spots; caution advised if outside for extended periods of time
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Wednesday

RealFeel®114°

RealFeel Shade™105°

Max UV Index9 (Very High)

WindSSW 4 mph

Wed 7/23

97° /75°
2%
Hot with sunshine
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Wednesday

RealFeel®110°

RealFeel Shade™100°

Max UV Index10 (Very High)

WindSSW 4 mph

Thu 7/24

98° /76°
3%
Partly sunny and very hot

RealFeel®112°

RealFeel Shade™102°

Max UV Index10 (Very High)

WindSSW 5 mph

Fri 7/25

97° /75°
40%
Partly sunny and hot; watch for a strong afternoon thunderstorm

RealFeel®103°

RealFeel Shade™99°

Max UV Index10 (Very High)

WindS 4 mph

Sat 7/26

96° /74°
65%
Watch for strong morning thunderstorms; hot with clouds and breaks of sun, a couple of showers in the afternoon

RealFeel®94°

RealFeel Shade™94°

Max UV Index5 (Moderate)

WindWSW 6 mph

Sun 7/27

93° /72°
40%
Watch for a strong morning thunderstorm; hot with partial sunshine

RealFeel®101°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindNNE 4 mph

Mon 7/28

95° /72°
0%
Mostly sunny and hot

RealFeel®99°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindESE 6 mph

Tue 7/29

92° /71°
1%
Mostly sunny and humid

RealFeel®100°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindESE 6 mph

Wed 7/30

87° /68°
1%
Mostly sunny

RealFeel®97°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindSSE 5 mph

Thu 7/31

88° /67°
39%
Increasing cloudiness with a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™92°

Max UV Index7 (High)

WindS 4 mph

Fri 8/1

91° /72°
20%
Less humid with times of clouds and sun

RealFeel®95°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindSW 7 mph

Sat 8/2

91° /71°
25%
Cloudy and hot

RealFeel®97°

RealFeel Shade™97°

Max UV Index3 (Moderate)

WindS 4 mph

Sun 8/3

88° /69°
65%
Cloudy and humid with showers and thunderstorms

RealFeel®93°

RealFeel Shade™91°

Max UV Index2 (Low)

WindNNE 6 mph

Mon 8/4

83° /65°
57%
Remaining cloudy; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®83°

RealFeel Shade™81°

Max UV Index2 (Low)

WindNE 6 mph

Tue 8/5

83° /63°
5%
Plenty of sunshine

RealFeel®89°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindENE 5 mph

Wed 8/6

84° /64°
20%
Clouds rolling in

RealFeel®93°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindESE 4 mph

Thu 8/7

86° /70°
25%
Some sun, then increasing clouds

RealFeel®86°

RealFeel Shade™86°

Max UV Index5 (Moderate)

WindSW 8 mph

Fri 8/8

90° /70°
64%
A couple of showers and a thunderstorm in the morning; otherwise, humid with intervals of clouds and sunshine

RealFeel®94°

RealFeel Shade™92°

Max UV Index4 (Moderate)

WindN 6 mph

Sat 8/9

84° /68°
20%
Mostly sunny

RealFeel®94°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindNE 5 mph

Sun 8/10

83° /66°
20%
Sunny

RealFeel®94°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindENE 4 mph

Mon 8/11

85° /68°
20%
Sunny to partly cloudy

RealFeel®92°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindSSE 5 mph

Tue 8/12

90° /70°
20%
Mostly sunny

RealFeel®93°

RealFeel Shade™89°

Max UV Index9 (Very High)

WindS 7 mph

Wed 8/13

90° /70°
20%
Partly sunny

RealFeel®96°

RealFeel Shade™91°

Max UV Index8 (Very High)

WindS 7 mph

Thu 8/14

91° /71°
39%
Overcast with a thunderstorm in spots

RealFeel®92°

RealFeel Shade™92°

Max UV Index3 (Moderate)

WindSSW 8 mph

Fri 8/15

90° /71°
25%
Partly sunny

RealFeel®95°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindSSW 6 mph

Sat 8/16

91° /70°
10%
Mostly sunny and humid

RealFeel®102°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindENE 4 mph

Sun 8/17

91° /70°
5%
Sunny, hot and humid

RealFeel®101°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindSSE 5 mph

Mon 8/18

90° /71°
20%
Sunny, hot and humid

RealFeel®99°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindS 5 mph

Tue 8/19

91° /71°
5%
Hot and humid with plenty of sun

RealFeel®101°

RealFeel Shade™96°

Max UV Index8 (Very High)

WindS 6 mph

Wed 8/20

91° /70°
25%
Hot and humid with increasing cloudiness

RealFeel®102°

RealFeel Shade™97°

Max UV Index8 (Very High)

WindS 5 mph

Thu 8/21

90° /71°
20%
Mostly sunny, hot and humid

RealFeel®101°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindS 5 mph

Fri 8/22

91° /71°
20%
Partly sunny, hot and humid

RealFeel®103°

RealFeel Shade™97°

Max UV Index8 (Very High)

WindSE 5 mph

Sat 8/23

92° /70°
25%
Hot and humid with clouds and sunshine

RealFeel®103°

RealFeel Shade™97°

Max UV Index8 (Very High)

WindSE 5 mph

Sun 8/24

92° /71°
5%
Hot with plenty of sunshine

RealFeel®100°

RealFeel Shade™94°

Max UV Index8 (Very High)

WindSSE 5 mph

Mon 8/25

91° /70°
20%
Hot with sunshine and a few clouds

RealFeel®97°

RealFeel Shade™91°

Max UV Index8 (Very High)

WindSSW 5 mph

Tue 8/26

91° /70°
25%
Clouds to start, then sunshine returns and hot

RealFeel®98°

RealFeel Shade™93°

Max UV Index5 (Moderate)

WindS 5 mph

Wed 8/27

90° /69°
25%
Intervals of clouds and sunshine, hot and humid

RealFeel®99°

RealFeel Shade™93°

Max UV Index5 (Moderate)

WindNE 1 mph

Thu 8/28

89° /69°
57%
Very warm and humid with intervals of clouds and sunshine; a thunderstorm in the area in the afternoon

RealFeel®97°

RealFeel Shade™96°

Max UV Index4 (Moderate)

WindNW 2 mph

Fri 8/29

84° /66°
4%
Humid with intervals of clouds and sunshine

RealFeel®88°

RealFeel Shade™85°

Max UV Index4 (Moderate)

WindE 9 mph

Sat 8/30

89° /59°
65%
Mostly cloudy and humid with a couple of thunderstorms, especially late in the day

RealFeel®99°

RealFeel Shade™98°

Max UV Index7 (High)

WindESE 5 mph

Sun 8/31

82° /59°
61%
Mostly cloudy and not as warm but humid with thunderstorms

RealFeel®83°

RealFeel Shade™83°

Max UV Index2 (Low)

WindN 7 mph

Mon 9/1

81° /58°
79%
Morning rain; otherwise, cloudy

RealFeel®81°

RealFeel Shade™78°

Max UV Index4 (Moderate)

WindNNE 8 mph

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World North America United States Missouri St. Peters

Weather Near St. Peters:

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