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St. John, MO

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St. John

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St. John, MO Weather
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July 28 - August 11

Tue 7/28

91° /70°
1%
Humid with sunshine interrupted by clouds at times; wildfire smoke will cause the sky to be hazy
alerts

Heat Advisory

9:00 PM Monday - 7:00 PM Tuesday

RealFeel®109°

RealFeel Shade™99°

Max UV Index10.0 (Very High)

WindN 8 mph

Wed 7/29

88° /66°
3%
Pleasant and less humid with plenty of sunshine; wildfire smoke will cause the sky to be hazy

RealFeel®92°

RealFeel Shade™86°

Max UV Index10.0 (Very High)

WindENE 8 mph

Thu 7/30

87° /70°
2%
Pleasant with sun and areas of high clouds

RealFeel®93°

RealFeel Shade™85°

Max UV Index10.0 (Very High)

WindSE 7 mph

Fri 7/31

78° /68°
77%
Increasing cloudiness and not as warm; a heavy thunderstorm in the afternoon

RealFeel®84°

RealFeel Shade™80°

Max UV Index5.0 (Moderate)

WindS 10 mph

Hours of Precipitation1

Hours of Rain1

Sat 8/1

76° /68°
88%
Breezy in the morning; mostly cloudy with a couple of showers and a thunderstorm

RealFeel®78°

RealFeel Shade™76°

Max UV Index3.0 (Moderate)

WindW 13 mph

Hours of Precipitation4

Hours of Rain4

Sun 8/2

81° /69°
55%
Breezy in the morning; mostly cloudy with a thunderstorm

RealFeel®84°

RealFeel Shade™82°

Max UV Index5.0 (Moderate)

WindN 12 mph

Hours of Precipitation2

Hours of Rain2

Mon 8/3

87° /70°
55%
Times of sun and clouds with a couple of showers

RealFeel®93°

RealFeel Shade™89°

Max UV Index5.0 (Moderate)

WindNNE 8 mph

Hours of Precipitation2

Hours of Rain2

Tue 8/4

89° /71°
59%
Mostly cloudy and humid; occasional rain and a thunderstorm in the morning followed by a thunderstorm in spots in the afternoon

RealFeel®99°

RealFeel Shade™95°

Max UV Index4.0 (Moderate)

WindNE 5 mph

Hours of Precipitation2.5

Hours of Rain2.5

Wed 8/5

90° /70°
56%
Partly sunny and humid with a couple of showers, mainly early in the day

RealFeel®102°

RealFeel Shade™95°

Max UV Index7.0 (High)

WindNNE 4 mph

Hours of Precipitation2

Hours of Rain2

Thu 8/6

90° /70°
6%
Mostly sunny

RealFeel®103°

RealFeel Shade™96°

Max UV Index10.0 (Very High)

WindWNW 1 mph

Fri 8/7

89° /72°
62%
Clouds giving way to some sun; a little morning rain followed by a couple of thunderstorms in the afternoon

RealFeel®97°

RealFeel Shade™91°

Max UV Index9.0 (Very High)

WindSE 2 mph

Hours of Precipitation2

Hours of Rain2

Sat 8/8

94° /73°
49%
Mostly sunny with a shower in places in the afternoon

RealFeel®102°

RealFeel Shade™99°

Max UV Index9.0 (Very High)

WindS 6 mph

Hours of Precipitation1

Hours of Rain1

Sun 8/9

93° /74°
1%
Humid with sunshine

RealFeel®106°

RealFeel Shade™102°

Max UV Index9.0 (Very High)

WindS 8 mph

Mon 8/10

90° /70°
59%
Uncomfortably humid with times of clouds and sun; an afternoon thunderstorm

RealFeel®104°

RealFeel Shade™103°

Max UV Index6.0 (High)

WindSSE 4 mph

Hours of Precipitation1

Hours of Rain1

Tue 8/11

86° /74°
65%
Humid with sunny spells; a couple of afternoon showers and a thunderstorm

RealFeel®94°

RealFeel Shade™94°

Max UV Index4.0 (Moderate)

WindSSE 6 mph

Hours of Precipitation2

Hours of Rain2

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World North America United States Missouri St. John

Weather Near St. John:

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