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O'Fallon, IL

62°F
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O'Fallon

Illinois

62°
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O'Fallon, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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8 AM

63°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 71%
Chevron down
Rain

RealFeel Shade™55°

WindWSW 18 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts22 mph

Humidity87%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility5 mi

Cloud Ceiling3700 ft

9 AM

64°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™60°

WindWSW 15 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts24 mph

Humidity88%

Indoor Humidity78% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2700 ft

10 AM

65°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 71%
Chevron down
Rain

RealFeel Shade™59°

WindWNW 14 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts27 mph

Humidity83%

Indoor Humidity76% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility5 mi

Cloud Ceiling1600 ft

11 AM

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

RealFeel Shade™55°

WindNW 16 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts29 mph

Humidity83%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.05 in

Visibility5 mi

Cloud Ceiling1600 ft

12 PM

57°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™49°

WindNW 22 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts32 mph

Humidity77%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling1700 ft

1 PM

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

RealFeel Shade™41°

WindNW 24 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts37 mph

Humidity76%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1700 ft

2 PM

51°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™40°

WindNW 21 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts33 mph

Humidity72%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2000 ft

3 PM

50°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 51%
Chevron down
Showers

RealFeel Shade™37°

WindNW 21 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts36 mph

Humidity68%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.02 in

Visibility6 mi

Cloud Ceiling2200 ft

4 PM

47°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™35°

WindNW 21 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts37 mph

Humidity70%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2500 ft

5 PM

48°
RealFeel® 37°
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

RealFeel Shade™37°

WindNNW 21 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts38 mph

Humidity65%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4000 ft

6 PM

47°
RealFeel® 36°
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

RealFeel Shade™36°

WindNNW 20 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts36 mph

Humidity62%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling5500 ft

7 PM

47°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 23%
Chevron down
Cloudy

RealFeel Shade™36°

WindNNW 20 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts32 mph

Humidity60%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling7100 ft

8 PM

45°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly clear

WindNNW 22 mph

Air QualityFair

Wind Gusts37 mph

Humidity63%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

44°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly clear

WindNNW 21 mph

Air QualityFair

Wind Gusts38 mph

Humidity64%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

44°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly clear

WindNNW 20 mph

Air QualityFair

Wind Gusts37 mph

Humidity60%

Indoor Humidity40% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

43°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Clear

WindNNW 18 mph

Air QualityFair

Wind Gusts35 mph

Humidity61%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

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Weather Near O'Fallon:

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