O'Fallon, MO Daily Weather

Activate Your Premium+ Subscription

March 21 - April 19

Sat 3/21

85° /60°

Very warm with plenty of sunshine

RealFeel®87°

RealFeel Shade™83°

Max UV Index5.0 (Moderate)

WindS 6 mph

Sun 3/22

87° /35°

Partly sunny, breezy and remaining very warm

RealFeel®88°

RealFeel Shade™84°

Max UV Index5.0 (Moderate)

WindWNW 16 mph

Mon 3/23

54° /38°

Breezy in the morning; otherwise, cooler with sun through high clouds

RealFeel®54°

RealFeel Shade™49°

Max UV Index6.0 (High)

WindNE 13 mph

Tue 3/24

63° /43°

Nice with clouds and sun

RealFeel®65°

RealFeel Shade™61°

Max UV Index4.0 (Moderate)

WindSE 8 mph

Wed 3/25

74° /53°

15%

Warmer with intervals of clouds and sun; breezy in the afternoon

RealFeel®73°

RealFeel Shade™70°

Max UV Index4.0 (Moderate)

WindS 13 mph

Thu 3/26

84° /45°

22%

Mostly sunny and warmer; breezy in the afternoon

RealFeel®83°

RealFeel Shade™80°

Max UV Index6.0 (High)

WindW 12 mph

Fri 3/27

59° /37°

75%

Morning rain; otherwise, cloudy and cooler

RealFeel®57°

RealFeel Shade™55°

Max UV Index2.0 (Low)

WindN 12 mph

Sat 3/28

53° /41°

Intervals of clouds and sunshine

RealFeel®56°

RealFeel Shade™50°

Max UV Index6.0 (High)

WindE 10 mph

Sun 3/29

70° /54°

16%

Partly sunny

RealFeel®73°

RealFeel Shade™68°

Max UV Index6.0 (High)

WindSE 6 mph

Mon 3/30

73° /54°

Warm with brilliant sunshine

RealFeel®73°

RealFeel Shade™70°

Max UV Index6.0 (High)

WindS 14 mph

Tue 3/31

73° /54°

Warm with times of clouds and sun

RealFeel®72°

RealFeel Shade™69°

Max UV Index4.0 (Moderate)

WindS 15 mph

Wed 4/1

70° /55°

18%

Sun and areas of high clouds in the morning, then becoming cloudy

RealFeel®69°

RealFeel Shade™67°

Max UV Index4.0 (Moderate)

WindS 15 mph

Thu 4/2

68° /46°

77%

Rain

RealFeel®64°

RealFeel Shade™64°

Max UV Index1.0 (Low)

WindNNW 10 mph

Fri 4/3

62° /39°

81%

Cloudy; a passing shower in the morning followed by rain in the afternoon

RealFeel®58°

RealFeel Shade™58°

Max UV Index2.0 (Low)

WindS 10 mph

Sat 4/4

67° /47°

68%

Cloudy; periods of rain in the morning, then afternoon showers and thunderstorms

RealFeel®68°

RealFeel Shade™68°

Max UV Index2.0 (Low)

WindWSW 6 mph

Sun 4/5

64° /45°

56%

Cloudy; a couple of morning showers followed by a little rain in the afternoon

RealFeel®63°

RealFeel Shade™63°

Max UV Index2.0 (Low)

WindNE 7 mph

Mon 4/6

63° /41°

74%

Cloudy with rain tapering to a couple of showers

RealFeel®61°

RealFeel Shade™61°

Max UV Index1.0 (Low)

WindNNW 9 mph

Tue 4/7

54° /35°

72%

Remaining cloudy with a couple of showers followed by a steadier rain

RealFeel®50°

RealFeel Shade™48°

Max UV Index2.0 (Low)

WindNNW 9 mph

Wed 4/8

54° /35°

25%

Mainly cloudy

RealFeel®49°

RealFeel Shade™48°

Max UV Index4.0 (Moderate)

WindNW 13 mph

Thu 4/9

55° /34°

Plenty of sun

RealFeel®65°

RealFeel Shade™56°

Max UV Index7.0 (High)

WindNNW 4 mph

Fri 4/10

57° /36°

25%

Cloudy

RealFeel®55°

RealFeel Shade™54°

Max UV Index2.0 (Low)

WindESE 7 mph

Sat 4/11

58° /43°

59%

Periods of rain

RealFeel®51°

RealFeel Shade™51°

Max UV Index2.0 (Low)

WindESE 14 mph

Sun 4/12

58° /48°

20%

After a cloudy start, sun returns

RealFeel®60°

RealFeel Shade™54°

Max UV Index7.0 (High)

WindS 9 mph

Mon 4/13

68° /42°

25%

Clouds and sunshine

RealFeel®69°

RealFeel Shade™64°

Max UV Index8.0 (Very High)

WindW 12 mph

Tue 4/14

59° /39°

20%

Clouds and sun

RealFeel®70°

RealFeel Shade™59°

Max UV Index8.0 (Very High)

WindNW 4 mph

Wed 4/15

59° /41°

25%

Cloudy

RealFeel®58°

RealFeel Shade™58°

Max UV Index2.0 (Low)

WindNNW 7 mph

Thu 4/16

60° /40°

20%

Partly sunny

RealFeel®62°

RealFeel Shade™56°

Max UV Index8.0 (Very High)

WindW 8 mph

Fri 4/17

60° /39°

25%

Intervals of clouds and sunshine

RealFeel®64°

RealFeel Shade™61°

Max UV Index4.0 (Moderate)

WindNE 1 mph

Sat 4/18

61° /45°

25%

Cloudy most of the time

RealFeel®62°

RealFeel Shade™58°

Max UV Index2.0 (Low)

WindENE 7 mph

Sun 4/19

62° /50°

25%

Considerable cloudiness

RealFeel®58°

RealFeel Shade™58°

Max UV Index2.0 (Low)

WindESE 13 mph

O'Fallon, MO

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Daily

Sat 3/21

Sun 3/22

Mon 3/23

Tue 3/24

Wed 3/25

Thu 3/26

Fri 3/27

Sat 3/28

Sun 3/29

Mon 3/30

Tue 3/31

Wed 4/1

Thu 4/2

Fri 4/3

Sat 4/4

Sun 4/5

Mon 4/6

Tue 4/7

Wed 4/8

Thu 4/9

Fri 4/10

Sat 4/11

Sun 4/12

Mon 4/13

Tue 4/14

Wed 4/15

Thu 4/16

Fri 4/17

Sat 4/18

Sun 4/19

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Weather Near O'Fallon: