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Over 100 million face wintry cold blast early next week. Get the forecast. Chevron right

O'Fallon, MO

49°F
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O'Fallon, MO Weather
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4 AM

47°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindNW 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity75%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

45°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindNW 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity83%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

44°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindNW 5 mph

Air QualityPoor

Wind Gusts9 mph

Humidity88%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling18300 ft

7 AM

46°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 5%
Chevron down
Intermittent clouds

RealFeel Shade™45°

WindN 5 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts6 mph

Humidity81%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover56%

Visibility10 mi

Cloud Ceiling18200 ft

8 AM

49°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 5%
Chevron down
Mostly cloudy

RealFeel Shade™49°

WindN 5 mph

Air QualityPoor

Max UV Index0.5 (Low)

Wind Gusts6 mph

Humidity75%

Indoor Humidity38% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover75%

Visibility10 mi

Cloud Ceiling16400 ft

9 AM

51°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 6%
Chevron down
Cloudy

RealFeel Shade™52°

WindN 5 mph

Air QualityPoor

Max UV Index0.7 (Low)

Wind Gusts6 mph

Humidity69%

Indoor Humidity38% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling14700 ft

10 AM

55°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™57°

WindN 5 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts5 mph

Humidity62%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14700 ft

11 AM

57°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™58°

WindE 4 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts4 mph

Humidity57%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14700 ft

12 PM

59°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 11%
Chevron down
Cloudy

RealFeel Shade™59°

WindSSE 2 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts4 mph

Humidity54%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14700 ft

1 PM

60°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 19%
Chevron down
Cloudy

RealFeel Shade™61°

WindSE 4 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts5 mph

Humidity51%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling14400 ft

2 PM

61°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 19%
Chevron down
Cloudy

RealFeel Shade™63°

WindNNE 5 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts6 mph

Humidity50%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling14200 ft

3 PM

62°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 24%
Chevron down
Cloudy

RealFeel Shade™62°

WindN 6 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts7 mph

Humidity50%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling14000 ft

4 PM

61°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 51%
Chevron down
Showers

RealFeel Shade™58°

WindNNE 6 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts7 mph

Humidity53%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

5 PM

58°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

WindENE 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity60%

Indoor Humidity43% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling14400 ft

6 PM

55°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 42%
Chevron down
Cloudy

WindENE 6 mph

Air QualityFair

Wind Gusts10 mph

Humidity69%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling14700 ft

7 PM

53°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 42%
Chevron down
Showers

WindN 12 mph

Air QualityPoor

Wind Gusts14 mph

Humidity74%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover88%

Rain0.01 in

Visibility5 mi

Cloud Ceiling7000 ft

8 PM

52°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 38%
Chevron down
Mostly cloudy

WindNW 15 mph

Air QualityFair

Wind Gusts17 mph

Humidity76%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover87%

Visibility5 mi

Cloud Ceiling2000 ft

9 PM

50°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 35%
Chevron down
Cloudy

WindNW 17 mph

Air QualityFair

Wind Gusts28 mph

Humidity79%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility5 mi

Cloud Ceiling2000 ft

10 PM

48°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindNW 17 mph

Air QualityFair

Wind Gusts29 mph

Humidity79%

Indoor Humidity38% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility5 mi

Cloud Ceiling2000 ft

11 PM

46°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindNW 18 mph

Air QualityFair

Wind Gusts30 mph

Humidity79%

Indoor Humidity35% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility5 mi

Cloud Ceiling2000 ft

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World North America United States Missouri O'Fallon

Weather Near O'Fallon:

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