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Flash flood risk to focus on parts of central US. Get the forecast Chevron right

Marine, IL

96°F
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Marine, IL Weather
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2
Extreme Heat Warning

July 20 - September 2

Sun 7/20

96° /75°
89%
Humid with times of clouds and sun; a drenching thunderstorm this afternoon; watch for flash flooding
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

alerts

Flood Watch

5:00 PM Sunday - 1:00 PM Monday

RealFeel®112°

RealFeel Shade™102°

Max UV Index11 (Extreme)

WindSSW 6 mph

Mon 7/21

89° /73°
60%
A morning thunderstorm; otherwise, cloudy and very humid
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

alerts

Flood Watch

5:00 PM Sunday - 1:00 PM Monday

RealFeel®101°

RealFeel Shade™97°

Max UV Index5 (Moderate)

WindSSE 6 mph

Tue 7/22

91° /75°
40%
Partly sunny and very humid with a thunderstorm in parts of the area
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

RealFeel®108°

RealFeel Shade™99°

Max UV Index10 (Very High)

WindSSE 7 mph

Wed 7/23

96° /75°
3%
Mostly sunny, hot and humid; caution advised if outside for extended periods of time
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

RealFeel®112°

RealFeel Shade™104°

Max UV Index10 (Very High)

WindS 5 mph

Thu 7/24

96° /72°
25%
Sunny to partly cloudy, hot and humid; caution advised if outside for extended periods of time
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

RealFeel®112°

RealFeel Shade™105°

Max UV Index9 (Very High)

WindS 6 mph

Fri 7/25

90° /73°
40%
Uncomfortably humid with partial sunshine; a thunderstorm around in the afternoon

RealFeel®106°

RealFeel Shade™98°

Max UV Index10 (Very High)

WindSSW 7 mph

Sat 7/26

92° /71°
71%
Very humid with clouds and breaks of sun; a couple of thunderstorms in the morning, watch for a strong thunderstorm in the afternoon

RealFeel®105°

RealFeel Shade™100°

Max UV Index6 (High)

WindS 7 mph

Sun 7/27

90° /73°
4%
Humid with sunshine and a few clouds

RealFeel®104°

RealFeel Shade™99°

Max UV Index10 (Very High)

WindWNW 7 mph

Mon 7/28

89° /71°
1%
Mostly sunny and humid

RealFeel®102°

RealFeel Shade™95°

Max UV Index10 (Very High)

WindE 4 mph

Tue 7/29

92° /71°
9%
Partly sunny

RealFeel®104°

RealFeel Shade™96°

Max UV Index10 (Very High)

WindS 5 mph

Wed 7/30

89° /68°
40%
Humid with times of clouds and sun; a thunderstorm in spots in the afternoon

RealFeel®105°

RealFeel Shade™97°

Max UV Index10 (Very High)

WindS 4 mph

Thu 7/31

90° /68°
2%
Partly sunny

RealFeel®98°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindNNE 8 mph

Fri 8/1

92° /69°
1%
Times of clouds and sun

RealFeel®101°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindENE 6 mph

Sat 8/2

90° /67°
25%
Mostly cloudy and humid

RealFeel®97°

RealFeel Shade™95°

Max UV Index4 (Moderate)

WindS 7 mph

Sun 8/3

85° /70°
10%
Mostly sunny

RealFeel®97°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindSSE 4 mph

Mon 8/4

87° /70°
25%
Mostly cloudy

RealFeel®91°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindSSW 7 mph

Tue 8/5

89° /71°
25%
Turning cloudy

RealFeel®90°

RealFeel Shade™90°

Max UV Index4 (Moderate)

WindWSW 8 mph

Wed 8/6

88° /70°
57%
Mostly cloudy and humid; a thunderstorm in spots in the morning followed by a passing shower in the afternoon

RealFeel®95°

RealFeel Shade™93°

Max UV Index3 (Moderate)

WindN 2 mph

Thu 8/7

87° /70°
70%
Humid with considerable cloudiness; thunderstorms in the afternoon

RealFeel®95°

RealFeel Shade™95°

Max UV Index3 (Moderate)

WindSSW 2 mph

Fri 8/8

84° /69°
65%
A couple of showers and a thunderstorm in the morning; otherwise, mostly cloudy and humid

RealFeel®90°

RealFeel Shade™88°

Max UV Index2 (Low)

WindWNW 7 mph

Sat 8/9

84° /67°
25%
Mostly sunny

RealFeel®93°

RealFeel Shade™87°

Max UV Index9 (Very High)

WindNNE 5 mph

Sun 8/10

83° /66°
39%
Mostly sunny with a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindNE 6 mph

Mon 8/11

83° /66°
25%
Brilliant sunshine

RealFeel®93°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindENE 4 mph

Tue 8/12

84° /68°
20%
Sunny to partly cloudy

RealFeel®95°

RealFeel Shade™89°

Max UV Index9 (Very High)

WindSE 5 mph

Wed 8/13

86° /69°
41%
Cloudy and humid; a shower in spots in the morning followed by a thunderstorm in spots in the afternoon

RealFeel®91°

RealFeel Shade™91°

Max UV Index3 (Moderate)

WindSSE 7 mph

Thu 8/14

86° /64°
65%
Cloudy and humid; a little morning rain followed by a couple of showers and a thunderstorm in the afternoon

RealFeel®92°

RealFeel Shade™92°

Max UV Index2 (Low)

WindSW 9 mph

Fri 8/15

82° /62°
20%
Partly sunny and less humid

RealFeel®87°

RealFeel Shade™81°

Max UV Index9 (Very High)

WindN 5 mph

Sat 8/16

83° /63°
25%
Intervals of clouds and sunshine

RealFeel®86°

RealFeel Shade™83°

Max UV Index4 (Moderate)

WindNE 2 mph

Sun 8/17

82° /64°
25%
Mostly cloudy

RealFeel®82°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindENE 6 mph

Mon 8/18

81° /63°
25%
Considerable cloudiness

RealFeel®82°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindENE 7 mph

Tue 8/19

82° /68°
64%
Cloudy with a couple of showers and a thunderstorm in the afternoon

RealFeel®85°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindE 6 mph

Wed 8/20

82° /67°
20%
Partly sunny

RealFeel®92°

RealFeel Shade™84°

Max UV Index8 (Very High)

WindNE 5 mph

Thu 8/21

83° /65°
5%
Plenty of sunshine

RealFeel®92°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindNE 5 mph

Fri 8/22

85° /67°
10%
Mostly sunny

RealFeel®95°

RealFeel Shade™86°

Max UV Index8 (Very High)

WindENE 4 mph

Sat 8/23

86° /67°
25%
Humid with increasing cloudiness

RealFeel®96°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindSE 5 mph

Sun 8/24

87° /66°
10%
Mostly sunny

RealFeel®91°

RealFeel Shade™86°

Max UV Index8 (Very High)

WindSSW 8 mph

Mon 8/25

88° /67°
20%
Humid with partial sunshine

RealFeel®100°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindNNW 5 mph

Tue 8/26

87° /67°
10%
Sunshine and less humid

RealFeel®92°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindE 6 mph

Wed 8/27

88° /68°
25%
Humid with considerable cloudiness

RealFeel®93°

RealFeel Shade™92°

Max UV Index2 (Low)

WindSW 9 mph

Thu 8/28

88° /66°
20%
Less humid with plenty of sun

RealFeel®93°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindNNW 6 mph

Fri 8/29

87° /66°
20%
Mostly sunny

RealFeel®92°

RealFeel Shade™86°

Max UV Index8 (Very High)

WindESE 4 mph

Sat 8/30

88° /67°
20%
Partly sunny

RealFeel®90°

RealFeel Shade™87°

Max UV Index7 (High)

WindSE 7 mph

Sun 8/31

88° /67°
10%
Sunny, warm and humid

RealFeel®92°

RealFeel Shade™89°

Max UV Index7 (High)

WindSSE 9 mph

Mon 9/1

86° /65°
1%
Mostly sunny

RealFeel®88°

RealFeel Shade™85°

Max UV Index7 (High)

WindSSE 9 mph

Tue 9/2

85° /65°
1%
Mostly sunny

RealFeel®87°

RealFeel Shade™85°

Max UV Index7 (High)

WindS 10 mph

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Weather Near Marine:

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