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Sweltering 90-100 F heat to expand, affect 170 million in central and eastern US. Details here Chevron right
Severe storms sweep Northeast, teen struck by lightning in Central Park. Read more Chevron right

Gray Summit, MO

80°F
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Winter Center

Today Hourly

Daily

Radar MinuteCast Monthly Air Quality Health & Activities
Heat Advisory

June 21 - August 4

Sat 6/21

97° /74°
0%
Blazing sunshine and hot; extreme heat expected this weekend; stay hydrated
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Tuesday

RealFeel®104°

RealFeel Shade™100°

Max UV Index11 (Extreme)

WindSSW 10 mph

Sun 6/22

97° /72°
0%
Blazing sunshine and hot; caution advised if outside for extended periods of time
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Tuesday

RealFeel®104°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSW 8 mph

Mon 6/23

97° /73°
1%
Sunny and hot; danger of dehydration and heatstroke if outside for extended periods of time
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Tuesday

RealFeel®106°

RealFeel Shade™99°

Max UV Index11 (Extreme)

WindSSW 7 mph

Tue 6/24

93° /73°
4%
Mostly sunny, very warm and humid
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Tuesday

RealFeel®104°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSSW 5 mph

Wed 6/25

95° /72°
5%
Mostly sunny and very warm

RealFeel®105°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSW 6 mph

Thu 6/26

93° /73°
25%
Partly sunny and very warm

RealFeel®105°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindSW 5 mph

Fri 6/27

92° /72°
2%
Partly sunny and remaining very warm

RealFeel®99°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindSSW 8 mph

Sat 6/28

91° /73°
39%
Partly sunny with a thunderstorm in parts of the area; humid

RealFeel®99°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindSW 6 mph

Sun 6/29

90° /72°
2%
Partly sunny and humid

RealFeel®99°

RealFeel Shade™96°

Max UV Index8 (Very High)

WindSW 7 mph

Mon 6/30

86° /72°
57%
Cloudy and humid with a couple of thunderstorms

RealFeel®92°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindW 6 mph

Tue 7/1

86° /70°
1%
Mostly sunny and less humid

RealFeel®90°

RealFeel Shade™83°

Max UV Index11 (Extreme)

WindNNW 8 mph

Wed 7/2

88° /69°
1%
Low humidity with brilliant sunshine

RealFeel®93°

RealFeel Shade™85°

Max UV Index11 (Extreme)

WindNNW 6 mph

Thu 7/3

89° /65°
25%
Partly sunny

RealFeel®96°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindENE 4 mph

Fri 7/4

88° /70°
25%
Humid with sunshine and a few clouds

RealFeel®99°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSW 2 mph

Sat 7/5

84° /70°
25%
Humid with intervals of clouds and sunshine

RealFeel®93°

RealFeel Shade™89°

Max UV Index8 (Very High)

WindSSE 2 mph

Sun 7/6

87° /69°
10%
Mostly sunny and humid

RealFeel®98°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSSE 4 mph

Mon 7/7

89° /71°
57%
Humid with sunshine and some clouds; an afternoon thunderstorm

RealFeel®97°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindSW 7 mph

Tue 7/8

87° /70°
5%
Humid with plenty of sunshine

RealFeel®94°

RealFeel Shade™88°

Max UV Index11 (Extreme)

WindWNW 9 mph

Wed 7/9

86° /66°
10%
Sunny and less humid

RealFeel®91°

RealFeel Shade™82°

Max UV Index11 (Extreme)

WindWNW 6 mph

Thu 7/10

84° /64°
10%
Sunny

RealFeel®91°

RealFeel Shade™83°

Max UV Index11 (Extreme)

WindE 4 mph

Fri 7/11

87° /70°
55%
A morning thundershower; otherwise, more sun than clouds

RealFeel®92°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindSSE 10 mph

Sat 7/12

91° /71°
25%
Increasing cloudiness

RealFeel®90°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSW 13 mph

Sun 7/13

89° /68°
20%
Plenty of sunshine

RealFeel®96°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindNNE 5 mph

Mon 7/14

88° /67°
20%
Becoming cloudy

RealFeel®94°

RealFeel Shade™91°

Max UV Index11 (Extreme)

WindESE 5 mph

Tue 7/15

89° /71°
25%
Humid with considerable cloudiness

RealFeel®95°

RealFeel Shade™94°

Max UV Index3 (Moderate)

WindSSW 9 mph

Wed 7/16

89° /70°
70%
Morning showers and thunderstorms; otherwise, very humid with more clouds than sun

RealFeel®99°

RealFeel Shade™96°

Max UV Index5 (Moderate)

WindSW 5 mph

Thu 7/17

90° /71°
10%
Uncomfortably humid with sunshine

RealFeel®101°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindSSW 5 mph

Fri 7/18

91° /72°
20%
Sunny to partly cloudy and uncomfortably humid

RealFeel®100°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindS 8 mph

Sat 7/19

90° /71°
40%
Mostly sunny and humid; a thunderstorm in spots in the afternoon

RealFeel®99°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindS 9 mph

Sun 7/20

88° /71°
70%
Uncomfortably humid with variable cloudiness; afternoon showers and thunderstorms

RealFeel®96°

RealFeel Shade™95°

Max UV Index7 (High)

WindWNW 6 mph

Mon 7/21

86° /70°
20%
Mostly sunny and uncomfortably humid

RealFeel®97°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSSE 4 mph

Tue 7/22

89° /72°
39%
Uncomfortably humid with sunshine and a few clouds; a thunderstorm in spots in the afternoon

RealFeel®99°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindSSE 8 mph

Wed 7/23

92° /72°
20%
Partial sunshine

RealFeel®98°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindSSW 9 mph

Thu 7/24

93° /71°
10%
Humid with sunshine

RealFeel®105°

RealFeel Shade™101°

Max UV Index10 (Very High)

WindNW 5 mph

Fri 7/25

87° /71°
70%
Uncomfortably humid with considerable clouds; afternoon thunderstorms

RealFeel®96°

RealFeel Shade™95°

Max UV Index3 (Moderate)

WindWNW 4 mph

Sat 7/26

85° /70°
25%
Humid with intervals of clouds and sunshine

RealFeel®93°

RealFeel Shade™93°

Max UV Index5 (Moderate)

WindSE 5 mph

Sun 7/27

89° /72°
10%
Sunny much of the time and uncomfortably humid

RealFeel®99°

RealFeel Shade™97°

Max UV Index10 (Very High)

WindSE 6 mph

Mon 7/28

91° /72°
25%
Uncomfortably humid with times of clouds and sun

RealFeel®99°

RealFeel Shade™97°

Max UV Index5 (Moderate)

WindSE 7 mph

Tue 7/29

90° /71°
10%
Very humid with sunshine

RealFeel®99°

RealFeel Shade™96°

Max UV Index10 (Very High)

WindS 7 mph

Wed 7/30

91° /72°
5%
Humid with sunshine

RealFeel®99°

RealFeel Shade™96°

Max UV Index10 (Very High)

WindS 7 mph

Thu 7/31

91° /72°
65%
Partly sunny and humid; a couple of thunderstorms in the afternoon

RealFeel®100°

RealFeel Shade™97°

Max UV Index10 (Very High)

WindS 7 mph

Fri 8/1

85° /65°
25%
Not as hot with lower humidity with clouds to start, then sunshine returns

RealFeel®86°

RealFeel Shade™82°

Max UV Index7 (High)

WindENE 10 mph

Sat 8/2

85° /70°
0%
Partly sunny

RealFeel®89°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindE 7 mph

Sun 8/3

87° /68°
65%
Times of sun and clouds with a couple of showers and a thunderstorm, mainly early in the day

RealFeel®94°

RealFeel Shade™91°

Max UV Index8 (Very High)

WindS 6 mph

Mon 8/4

92° /67°
64%
A blend of sunshine and clouds with a couple of thunderstorms, especially late in the day

RealFeel®101°

RealFeel Shade™99°

Max UV Index9 (Very High)

WindWSW 6 mph

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World North America United States Missouri Gray Summit

Weather Near Gray Summit:

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