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Boston, Philly hit 100, NYC breaks record from 1888 amid heat wave. Get the latest Chevron right
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Herculaneum, MO

81°F
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Herculaneum, MO Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities
Heat Advisory

June 25 - August 8

Wed 6/25

94° /74°
25%
Very warm and humid with plenty of sun
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

RealFeel®106°

RealFeel Shade™99°

Max UV Index11 (Extreme)

WindSSW 6 mph

Thu 6/26

95° /73°
25%
Mostly sunny and very warm
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

RealFeel®105°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSW 7 mph

Fri 6/27

93° /73°
3%
Rather cloudy and remaining very warm

RealFeel®103°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindWSW 5 mph

Sat 6/28

89° /72°
43%
Humid with some sun, then turning cloudy; an afternoon thunderstorm in parts of the area

RealFeel®100°

RealFeel Shade™94°

Max UV Index8 (Very High)

WindWSW 4 mph

Sun 6/29

88° /71°
49%
Humid with times of clouds and sun; a thunderstorm in parts of the area in the afternoon

RealFeel®100°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindWSW 4 mph

Mon 6/30

89° /70°
49%
Mostly cloudy and humid; a thunderstorm in parts of the area in the afternoon

RealFeel®100°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindW 2 mph

Tue 7/1

84° /66°
40%
A stray shower in the morning; otherwise, partly sunny

RealFeel®92°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindNNW 7 mph

Wed 7/2

85° /65°
1%
Partly sunny

RealFeel®94°

RealFeel Shade™87°

Max UV Index7 (High)

WindSW 1 mph

Thu 7/3

86° /68°
1%
Plenty of sunshine

RealFeel®93°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindSSE 2 mph

Fri 7/4

88° /69°
30%
Times of clouds and sun with a thunderstorm possible

RealFeel®96°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindS 7 mph

Sat 7/5

86° /66°
55%
Mostly cloudy and humid with a shower

RealFeel®94°

RealFeel Shade™91°

Max UV Index6 (High)

WindSSW 9 mph

Sun 7/6

85° /71°
2%
Very humid with sun and some clouds

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindWSW 4 mph

Mon 7/7

88° /66°
20%
Partly sunny and uncomfortably humid

RealFeel®101°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindE 5 mph

Tue 7/8

85° /69°
5%
Sunny

RealFeel®93°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindSSE 5 mph

Wed 7/9

90° /71°
20%
Plenty of sunshine

RealFeel®97°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindS 7 mph

Thu 7/10

91° /72°
20%
Sunshine

RealFeel®99°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindWSW 7 mph

Fri 7/11

92° /72°
25%
Clouds to start, then sunshine returns and very warm

RealFeel®96°

RealFeel Shade™92°

Max UV Index5 (Moderate)

WindSSW 7 mph

Sat 7/12

92° /71°
55%
Mostly sunny and very warm; a passing thunderstorm in the afternoon

RealFeel®97°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 9 mph

Sun 7/13

91° /71°
64%
Mostly cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®99°

RealFeel Shade™98°

Max UV Index5 (Moderate)

WindNW 5 mph

Mon 7/14

89° /70°
65%
Humid with a blend of sunshine and clouds; a couple of afternoon showers and a thunderstorm

RealFeel®97°

RealFeel Shade™95°

Max UV Index7 (High)

WindS 5 mph

Tue 7/15

86° /71°
56%
A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®93°

RealFeel Shade™92°

Max UV Index4 (Moderate)

WindSW 6 mph

Wed 7/16

86° /71°
58%
Intervals of clouds and sunshine with a couple of showers and a thunderstorm; humid

RealFeel®96°

RealFeel Shade™94°

Max UV Index4 (Moderate)

WindW 2 mph

Thu 7/17

90° /70°
10%
Mostly sunny and humid

RealFeel®100°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindSSE 6 mph

Fri 7/18

91° /71°
10%
Brilliant sunshine and uncomfortably humid

RealFeel®102°

RealFeel Shade™99°

Max UV Index11 (Extreme)

WindSSE 2 mph

Sat 7/19

90° /70°
10%
Mostly sunny and humid

RealFeel®99°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindS 6 mph

Sun 7/20

91° /71°
20%
Humid with plenty of sunshine

RealFeel®99°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindS 8 mph

Mon 7/21

91° /72°
5%
Plenty of sunshine

RealFeel®98°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSSW 8 mph

Tue 7/22

92° /71°
25%
Mostly cloudy and very warm

RealFeel®100°

RealFeel Shade™98°

Max UV Index4 (Moderate)

WindNW 5 mph

Wed 7/23

89° /71°
65%
Humid with plenty of clouds; a couple of afternoon showers and a thunderstorm

RealFeel®97°

RealFeel Shade™97°

Max UV Index3 (Moderate)

WindESE 7 mph

Thu 7/24

90° /72°
10%
Mostly sunny and humid

RealFeel®99°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindENE 6 mph

Fri 7/25

91° /70°
10%
Mostly sunny

RealFeel®96°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindNE 7 mph

Sat 7/26

85° /65°
10%
Mostly sunny and less humid

RealFeel®91°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindNE 6 mph

Sun 7/27

85° /65°
5%
Plenty of sun

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNE 6 mph

Mon 7/28

87° /70°
20%
Partly sunny

RealFeel®93°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindNE 6 mph

Tue 7/29

89° /71°
10%
Abundant sunshine

RealFeel®98°

RealFeel Shade™91°

Max UV Index10 (Very High)

WindNNE 4 mph

Wed 7/30

90° /71°
10%
Sunny

RealFeel®98°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindESE 4 mph

Thu 7/31

91° /72°
5%
Sunny

RealFeel®97°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSSW 8 mph

Fri 8/1

92° /73°
10%
Mostly sunny, very warm and less humid

RealFeel®95°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindW 7 mph

Sat 8/2

93° /71°
20%
Mostly sunny and very warm

RealFeel®95°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindENE 8 mph

Sun 8/3

90° /68°
25%
Less humid with times of sun and clouds

RealFeel®91°

RealFeel Shade™87°

Max UV Index4 (Moderate)

WindE 7 mph

Mon 8/4

87° /65°
0%
Sunny

RealFeel®92°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindNE 5 mph

Tue 8/5

87° /67°
0%
Plenty of sun

RealFeel®94°

RealFeel Shade™91°

Max UV Index10 (Very High)

WindE 2 mph

Wed 8/6

89° /67°
39%
Mostly sunny with a shower in places in the afternoon

RealFeel®96°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindWSW 5 mph

Thu 8/7

87° /66°
40%
Intervals of clouds and sunshine with a thunderstorm in the area

RealFeel®92°

RealFeel Shade™88°

Max UV Index9 (Very High)

WindNW 6 mph

Fri 8/8

84° /63°
65%
Times of clouds and sun with a couple of showers and a thunderstorm, mainly later

RealFeel®92°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindNNE 5 mph

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World North America United States Missouri Herculaneum

Weather Near Herculaneum:

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