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O'Fallon, MO

63°F
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O'Fallon, MO Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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12 AM

60°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindWNW 14 mph

Air QualityExcellent

Wind Gusts25 mph

Humidity59%

Indoor Humidity44% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover47%

Visibility10 mi

Cloud Ceiling33000 ft

1 AM

57°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindWNW 13 mph

Air QualityExcellent

Wind Gusts23 mph

Humidity65%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

2 AM

55°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindWNW 9 mph

Air QualityFair

Wind Gusts18 mph

Humidity72%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

3 AM

53°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindW 8 mph

Air QualityFair

Wind Gusts18 mph

Humidity75%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

4 AM

51°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindW 8 mph

Air QualityFair

Wind Gusts18 mph

Humidity78%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

49°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindW 7 mph

Air QualityFair

Wind Gusts17 mph

Humidity80%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

47°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindWSW 7 mph

Air QualityFair

Wind Gusts16 mph

Humidity83%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

45°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindWSW 7 mph

Air QualityFair

Wind Gusts17 mph

Humidity86%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

47°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™42°

WindWSW 9 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts18 mph

Humidity79%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

50°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™44°

WindW 12 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts22 mph

Humidity71%

Indoor Humidity38% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

54°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™47°

WindW 14 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts25 mph

Humidity63%

Indoor Humidity38% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

57°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™50°

WindW 16 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts29 mph

Humidity54%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

60°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™53°

WindW 17 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts33 mph

Humidity45%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

60°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™53°

WindW 20 mph

Air QualityFair

Max UV Index3.7 (Moderate)

Wind Gusts36 mph

Humidity41%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

61°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™54°

WindWNW 20 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts38 mph

Humidity39%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

61°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™55°

WindWNW 18 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts40 mph

Humidity36%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

59°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™53°

WindWNW 18 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts44 mph

Humidity39%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

58°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™52°

WindWNW 16 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts38 mph

Humidity40%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

56°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™50°

WindWNW 13 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts32 mph

Humidity44%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

53°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindWNW 10 mph

Air QualityFair

Wind Gusts27 mph

Humidity50%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

50°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindWNW 9 mph

Air QualityFair

Wind Gusts23 mph

Humidity56%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

48°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindWNW 8 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity63%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

46°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindW 7 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity68%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

45°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindW 7 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity71%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

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World North America United States Missouri O'Fallon

Weather Near O'Fallon:

  • St. Charles, MO
  • St. Louis, MO
  • St. Peters, MO
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