O'Fallon Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in O'Fallon

O'Fallon temperature today is 11°, feels like 11°, with a humidity level of 95% and wind at 0 km/h. Rain chance today is 0%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in O'Fallon: expect a high of 33° and a low of 19°, with scattered clouds.

clear sky
11°
clear sky
H: 11° L: 10°
Feels like 11°
AQI: Moderate (3/5)
Humidity
95%
Dew 10°
Wind speed
0 km/h
N/A
Pressure
1016 hPa
Visibility
10 km
High Humidity
Humidity is 95%. May feel uncomfortable.
Weather Summary
Currently in O'Fallon, expect varied conditions with mild temperatures around 11°. Winds are calm winds. High humidity may make it feel uncomfortable.
Precipitation Probability
0%
07
0%
10
0%
13
0%
16
0%
19
0%
22
0%
01
0%
04
0%
07
0%
10
0%
13
0%
16
0%
19
0%
22
0%
01
0%
04
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
12°
Tue
07:00
25°
 
29°
 
30°
 
23°
Tue
19:00
19°
 
19°
 
19°
 
21°
Wed
07:00
28°
 
33°
 
33°
 
27°
Wed
19:00
28°
 
26°
 
24°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:53
Sunset
Sunset
18:46
Moon Phase
Waning Gibbous (66%)
Timezone: GMT+05:30
Last updated: Sep 29, 2026 5:21 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
38.592270
Longitude
Longitude
-89.911209
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More about O'Fallon
Content curated by the NearWeather editorial team · Updated periodically
OFallon is a city in Missouri, USA, with a population of around 87,000 people. It is situated between St. Louis and Columbia, and is known for its pleasant, family-friendly atmosphere. The climate in OFallon is mild, with warm summers and cold winters. The average temperature year-round is around 16°C (61°F). In the summer, the temperature typically ranges from 25°C (77°F) to 35°C (95°F), while in the winter, the temperature typically ranges from -2°C (28°F) to 5°C (41°F).
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about O'Fallon
What is the temperature in O'Fallon right now?

The current temperature in O'Fallon is 11°, and it feels like 11°. Today's high is 11° and the low is 10°.

Will it rain in O'Fallon today?

No rain is expected in O'Fallon today (0% chance). Conditions are currently clear sky.

What is the weather in O'Fallon today?

O'Fallon is experiencing clear sky with a temperature of 11°. Humidity is at 95% and wind speed is 0 km/h from the N.

What is the humidity in O'Fallon today?

Humidity in O'Fallon is 95% right now, with a dew point of 10°. Conditions may feel muggy or uncomfortable.

What is the wind speed in O'Fallon today?

Wind speed in O'Fallon is 0 km/h.

What is the 5-day forecast for O'Fallon?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for O'Fallon. Today's high is 11° and low is 10°, with a 0% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in O'Fallon today?

It feels like 11° in O'Fallon today, with 8% cloud cover and 10 km visibility.

Weather in O'Fallon