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St. Peter, IL

71°F
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St. Peter

Illinois

71°
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St. Peter, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly

Daily

 Radar MinuteCast® Monthly Air Quality Health & Activities

August 7 - September 20

Thu 8/7

89° /69°
4%
Mostly sunny and humid

RealFeel®101°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindSSE 5 mph

Fri 8/8

91° /69°
3%
Humid with plenty of sunshine

RealFeel®103°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindSSE 6 mph

Sat 8/9

92° /70°
3%
Mostly sunny and humid

RealFeel®102°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindS 7 mph

Sun 8/10

92° /69°
5%
Mostly sunny and hot; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®102°

RealFeel Shade™94°

Max UV Index9 (Very High)

WindS 8 mph

Mon 8/11

89° /70°
55%
Mostly sunny and humid; a thunderstorm in the afternoon

RealFeel®100°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindSSW 8 mph

Tue 8/12

88° /69°
71%
Cloudy most of the time with a couple of thunderstorms, especially late; very humid

RealFeel®99°

RealFeel Shade™94°

Max UV Index8 (Very High)

WindWSW 6 mph

Wed 8/13

88° /70°
41%
A morning shower in the area; otherwise, humid with times of clouds and sun

RealFeel®96°

RealFeel Shade™96°

Max UV Index5 (Moderate)

WindWNW 7 mph

Thu 8/14

87° /68°
1%
Partly sunny and humid

RealFeel®102°

RealFeel Shade™98°

Max UV Index6 (High)

WindNNW 5 mph

Fri 8/15

87° /70°
1%
Sunny to partly cloudy and humid

RealFeel®103°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindE 2 mph

Sat 8/16

86° /69°
4%
Humid with sunshine and a few clouds

RealFeel®100°

RealFeel Shade™94°

Max UV Index9 (Very High)

WindS 5 mph

Sun 8/17

86° /70°
2%
Humid with sunshine

RealFeel®101°

RealFeel Shade™99°

Max UV Index9 (Very High)

WindS 5 mph

Mon 8/18

87° /70°
4%
Humid with sunshine and a few clouds

RealFeel®103°

RealFeel Shade™101°

Max UV Index9 (Very High)

WindSW 4 mph

Tue 8/19

86° /64°
56%
A thunderstorm in the morning; otherwise, very humid with intervals of clouds and sun

RealFeel®102°

RealFeel Shade™96°

Max UV Index6 (High)

WindWSW 4 mph

Wed 8/20

87° /68°
25%
Mostly sunny and humid

RealFeel®99°

RealFeel Shade™90°

Max UV Index8 (Very High)

WindNW 5 mph

Thu 8/21

85° /64°
20%
Less humid with plenty of sun

RealFeel®90°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindNNE 6 mph

Fri 8/22

84° /65°
20%
Plenty of sun

RealFeel®90°

RealFeel Shade™82°

Max UV Index8 (Very High)

WindNE 5 mph

Sat 8/23

86° /66°
20%
Plenty of sunshine

RealFeel®93°

RealFeel Shade™85°

Max UV Index8 (Very High)

WindE 4 mph

Sun 8/24

87° /67°
20%
Sunny to partly cloudy

RealFeel®94°

RealFeel Shade™86°

Max UV Index8 (Very High)

WindSE 4 mph

Mon 8/25

88° /68°
10%
Sunny and humid

RealFeel®93°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindS 7 mph

Tue 8/26

88° /68°
40%
Mostly cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™92°

Max UV Index3 (Moderate)

WindS 7 mph

Wed 8/27

86° /66°
55%
A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®93°

RealFeel Shade™91°

Max UV Index3 (Moderate)

WindWSW 1 mph

Thu 8/28

83° /67°
25%
Turning cloudy and humid

RealFeel®93°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindENE 4 mph

Fri 8/29

84° /67°
25%
Mostly cloudy and humid

RealFeel®89°

RealFeel Shade™88°

Max UV Index2 (Low)

WindENE 6 mph

Sat 8/30

86° /66°
10%
Humid with brilliant sunshine

RealFeel®94°

RealFeel Shade™88°

Max UV Index7 (High)

WindENE 5 mph

Sun 8/31

87° /67°
10%
Sunny and humid

RealFeel®98°

RealFeel Shade™91°

Max UV Index7 (High)

WindNE 2 mph

Mon 9/1

87° /67°
10%
Humid with sunshine

RealFeel®97°

RealFeel Shade™91°

Max UV Index7 (High)

WindESE 4 mph

Tue 9/2

88° /66°
20%
Warm and humid with partial sunshine

RealFeel®93°

RealFeel Shade™88°

Max UV Index7 (High)

WindESE 5 mph

Wed 9/3

87° /67°
61%
Increasing cloudiness and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®96°

RealFeel Shade™90°

Max UV Index7 (High)

WindS 5 mph

Thu 9/4

87° /66°
25%
Some sun, then increasing clouds and humid

RealFeel®94°

RealFeel Shade™94°

Max UV Index5 (Moderate)

WindSSW 4 mph

Fri 9/5

86° /65°
25%
Humid with times of clouds and sun

RealFeel®92°

RealFeel Shade™90°

Max UV Index4 (Moderate)

WindNNE 4 mph

Sat 9/6

85° /65°
5%
Sunny and humid

RealFeel®92°

RealFeel Shade™85°

Max UV Index7 (High)

WindENE 2 mph

Sun 9/7

86° /64°
25%
Increasing cloudiness and humid

RealFeel®87°

RealFeel Shade™87°

Max UV Index5 (Moderate)

WindSSE 5 mph

Mon 9/8

85° /65°
25%
Mostly cloudy and humid

RealFeel®85°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindNNW 8 mph

Tue 9/9

81° /64°
25%
Turning cloudy and humid

RealFeel®84°

RealFeel Shade™83°

Max UV Index5 (Moderate)

WindNNW 4 mph

Wed 9/10

85° /64°
20%
Mostly sunny and humid

RealFeel®92°

RealFeel Shade™85°

Max UV Index6 (High)

WindW 4 mph

Thu 9/11

84° /62°
5%
Plenty of sun

RealFeel®87°

RealFeel Shade™83°

Max UV Index6 (High)

WindNE 5 mph

Fri 9/12

84° /59°
0%
Plenty of sun

RealFeel®92°

RealFeel Shade™87°

Max UV Index6 (High)

WindNE 1 mph

Sat 9/13

85° /60°
0%
Humid with plenty of sunshine

RealFeel®93°

RealFeel Shade™88°

Max UV Index6 (High)

WindS 2 mph

Sun 9/14

85° /60°
0%
Sunshine

RealFeel®92°

RealFeel Shade™88°

Max UV Index6 (High)

WindS 4 mph

Mon 9/15

75° /51°
0%
Clouds to start, then sunshine returns and not as warm with lower humidity

RealFeel®74°

RealFeel Shade™72°

Max UV Index6 (High)

WindNNW 12 mph

Tue 9/16

72° /53°
0%
Sunshine and a few clouds

RealFeel®74°

RealFeel Shade™70°

Max UV Index6 (High)

WindNE 6 mph

Wed 9/17

73° /59°
1%
Partly sunny

RealFeel®75°

RealFeel Shade™71°

Max UV Index6 (High)

WindESE 6 mph

Thu 9/18

74° /56°
60%
Periods of rain

RealFeel®73°

RealFeel Shade™73°

Max UV Index1 (Low)

WindSE 8 mph

Fri 9/19

79° /55°
65%
Intervals of clouds and sun; a shower in spots in the morning followed by a couple of thunderstorms in the afternoon

RealFeel®79°

RealFeel Shade™79°

Max UV Index5 (Moderate)

WindW 6 mph

Sat 9/20

75° /59°
2%
Mostly sunny

RealFeel®79°

RealFeel Shade™74°

Max UV Index5 (Moderate)

WindENE 4 mph

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World North America United States Illinois St. Peter

Weather Near St. Peter:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
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Apps & Downloads
iPhone App Android App See all Apps & Downloads
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AccuWeather Premium AccuWeather Professional
More
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