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WeatherLive › Missouri › O'Fallon

O'Fallon, MO Weather (63366)

Current WeatherO'Fallon · 6:21 PM CST
10° | 4°
7°C
Feels like 4°
Mostly cloudy
WindN 11 mph · Gusts 23 mph
Precip8% · –
Humidity52% · Dew point -2°
UV index2 Low
Air Quality28 Good
Pressure30.03 inHg
Visibility6 mi
Sunrise / Sunset6:42 AM · 4:51 PM · 10h 9m

Weather map — O'Fallon

Full radar →
Now
7°
10%
10 mph
19:00
6°
6%
10 mph
20:00
5°
5%
10 mph
21:00
5°
4%
10 mph
22:00
4°
5%
9 mph
23:00
4°
5%
8 mph
00:00
3°
6%
8 mph
01:00
3°
6%
8 mph
02:00
3°
6%
8 mph
03:00
2°
6%
8 mph
04:00
2°
7%
8 mph
05:00
2°
9%
8 mph
06:00
2°
10%
9 mph
07:00
2°
10%
9 mph
08:00
3°
9%
9 mph
09:00
4°
8%
10 mph
10:00
5°
7%
11 mph
11:00
6°
8%
11 mph
12:00
6°
7%
11 mph
13:00
7°
6%
11 mph
14:00
7°
6%
11 mph
15:00
7°
5%
11 mph
16:00
6°
6%
10 mph
17:00
5°
6%
8 mph

Today · Thu 11/12

High 10°
8% / –

Partly cloudy. Winds NW at 15 mph.

Tonight · Thu 11/12

Low 2°
4% / –

Sunny. Winds N at 10 mph.

Tomorrow · Fri 11/13

7° | 2°
7% / –

Partly cloudy. Winds N at 11 mph.

7-day trend

O'Fallon · temperature + precipitation

10-day forecast

Updated 6:21 PM

Details & indices

Wind
11 mph N
Gusts 23 mph
Humidity
52%
Dew point -2°
Pressure
30.03 inHg
Rising
UV index
2 — Low
High today
Air Quality
Good
AQI 28 · US EPA
Allergy
Low
Ragweed
Visibility
6 mi
Clear view
Allergy — O'Fallon

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
Low

Sun & moon

Sunrise6:42 AM
Sunset4:51 PM
Length of day10h 9m
Moonrise10:06 AM
Moonset7:04 PM
Next full moonNov 24 Beaver Moon
Latitude38.8106°N
Longitude-90.6998°E

Water temps nearby

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No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Great
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in Missouri
Kansas City
Partly cloudy
5°
St. Louis
Partly cloudy
7°
🌤️
Springfield
—
—
NBM + global weather models
Updated: 6:21 PM
O'Fallon, MO · Elev 541 ft · 38.81°N, 90.70°W · Missouri · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 6:21 PM