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Record-shattering March scorcher to bring summerlike heat to Southwest. See how hot it will get. Chevron right

O'Fallon, MO

17°F
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O'Fallon

Missouri

17°
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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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Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Tuesday, March 17

Current Weather

9:06 AM

17°F
Sunny
RealFeel® 24°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 18°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel®
24°
RealFeel Shade™
18°
Max UV Index
1.8 (Low)
Wind
NNW 3 mph
Wind Gusts
7 mph
Humidity
58%
Indoor Humidity
19% (Extremely Dry)
Dew Point
4° F
Pressure
↑ 30.28 in
Cloud Cover
0%
Visibility
15 mi
Cloud Ceiling
40000 ft

Day

3/17
35°Hi
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel Shade™ 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
Turning cloudy and cold

Max UV Index5.0 (Moderate)

AccuLumen Brightness Index™7 (Bright)

WindWSW 7 mph

Wind Gusts15 mph

Probability of Precipitation17%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover43%

Morning

Afternoon

Night

3/17
31°Lo
RealFeel® 18°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Breezy this evening; overcast with a shower in spots after temperatures rise above freezing

WindSSE 12 mph

Wind Gusts17 mph

Probability of Precipitation55%

Probability of Thunderstorms11%

Precipitation0.02 in

Rain0.02 in

Hours of Precipitation1

Hours of Rain1

Cloud Cover97%

Evening

Overnight

Sun & Moon

12 hrs 01 mins
Rise 7:11 AM
Set 7:12 PM
Waning Crescent
Rise 6:27 AM
Set 5:58 PM

Temperature History

3/17
High
Low
Forecast
35°
31°
Average
57°
34°
Last Year
70°
22°

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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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