Weather forecast for the weekend
Saturday, Apr 5.
6:39 am
7:31 pm
CDT
7:31 pm
CDT
Rain
50°F / 39°F
- Wind: 14mph N
- Humidity: 86%
- Precip. probability: 94%
- Precipitation: 0.91"
- UV index: 3
On Saturday, in O'Fallon, rain is in the forecast, making for a wet and cloudy day.
Elevated precipitation of 0.91" is expected. Temperature span will be from a high of a cool 50°F to a low of an icy 39.2°F.
This April day will feature colder weather, consistent with March's average of 54.1°F.
Sunrise will be at 6:39 am and sunset at 7:31 pm; the daylight will last for 12h and 53min.
Elevated precipitation of 0.91" is expected. Temperature span will be from a high of a cool 50°F to a low of an icy 39.2°F.
This April day will feature colder weather, consistent with March's average of 54.1°F.
Sunrise will be at 6:39 am and sunset at 7:31 pm; the daylight will last for 12h and 53min.
Sunday, Apr 6.
6:37 am
7:32 pm
CDT
7:32 pm
CDT
AM Showers
46°F / 32°F
- Wind: 12mph NNW
- Humidity: 69%
- Precip. probability: 43%
- Precipitation: 0.08"
- UV index: 4
On Sunday, in O'Fallon, expect passing morning showers bringing damp conditions.
Minimal precipitation is expected. Temperature span will be from a high of a frosty 46.4°F to a low of a cold 32°F.
A high of 46.4°F is expected, which resembles March's climate average of 54.1°F more than April's 65.3°F.
Sunrise will be at 6:37 am and sunset at 7:32 pm; the daylight will last for 12h and 55min.
Minimal precipitation is expected. Temperature span will be from a high of a frosty 46.4°F to a low of a cold 32°F.
A high of 46.4°F is expected, which resembles March's climate average of 54.1°F more than April's 65.3°F.
Sunrise will be at 6:37 am and sunset at 7:32 pm; the daylight will last for 12h and 55min.
Frequently asked questions
What is the weather forecast for O'Fallon for Saturday?
On Saturday, the rain is expected to continue, making for a damp and dreary day.
Will it rain on Saturday?
Yes. With a probability of 94%, substantial precipitation of 0.91" is anticipated on Saturday in O'Fallon.
What will be the maximum temperature on Saturday?
On Saturday, the highest temperature will be 50°F, while the lowest temperature will be 39.2°F.
What is the weather forecast for O'Fallon for Sunday?
On Sunday, in O'Fallon, expect light passing rain showers before midday.
Will it rain on Sunday?
On Sunday, there is a low chance of minimal precipitation in O'Fallon.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 46.4°F, while the lowest temperature will be 32°F.
What is the weather forecast for O'Fallon for the next ten days?
In O'Fallon, weather will be unstable, and a combination of showery, overcast, sunny and thunderstorm-prone weather is expected for the next ten days.
Will it rain in the next ten days?
Rain is anticipated on Wednesday through Sunday in O'Fallon. Friday, with intense precipitation of 1.97", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 46.4°F and 75.2°F, as the minimum temperature will vary between 28.4°F and 53.6°F.
What will be the warmest and the coldest days?
The warmest day will be tomorrow, with a maximum of 75.2°F. Sunday will be the coldest day, with a maximum temperature of 46.4°F.
Long-term weather forecast
TueApr 1.
- 59°F
- 54°F
Cloudy
- Wind: 18mph SE
- Humidity: 47%
- UV index: 6
- Precip. probability: 5%
- Precipitation: 0"
- 6:45 am 7:27 pm CDT
WedApr 2.
- 75°F
- 50°F
Scattered Strong Storms / Wind
- Wind: 25mph SSW
- Humidity: 72%
- UV index: 4
- Precip. probability: 48%
- Precipitation: 0.24"
- 6:43 am 7:28 pm CDT
ThuApr 3.
- 57°F
- 46°F
Showers
- Wind: 7mph NNW
- Humidity: 71%
- UV index: 3
- Precip. probability: 57%
- Precipitation: 0.28"
- 6:42 am 7:29 pm CDT
FriApr 4.
- 54°F
- 46°F
Rain
- Wind: 11mph NE
- Humidity: 80%
- UV index: 3
- Precip. probability: 99%
- Precipitation: 1.97"
- 6:40 am 7:30 pm CDT
SatApr 5.
- 50°F
- 39°F
Rain
- Wind: 14mph N
- Humidity: 86%
- UV index: 3
- Precip. probability: 94%
- Precipitation: 0.91"
- 6:39 am 7:31 pm CDT
SunApr 6.
- 46°F
- 32°F
AM Showers
- Wind: 12mph NNW
- Humidity: 69%
- UV index: 4
- Precip. probability: 43%
- Precipitation: 0.08"
- 6:37 am 7:32 pm CDT
MonApr 7.
- 54°F
- 28°F
Mostly Sunny
- Wind: 10mph NW
- Humidity: 50%
- UV index: 7
- Precip. probability: 4%
- Precipitation: 0"
- 6:35 am 7:33 pm CDT
TueApr 8.
- 59°F
- 39°F
Mostly Sunny
- Wind: 7mph WSW
- Humidity: 46%
- UV index: 7
- Precip. probability: 5%
- Precipitation: 0"
- 6:34 am 7:34 pm CDT
WedApr 9.
- 68°F
- 48°F
Partly Cloudy
- Wind: 11mph SSW
- Humidity: 52%
- UV index: 7
- Precip. probability: 18%
- Precipitation: 0"
- 6:32 am 7:35 pm CDT
ThuApr 10.
- 68°F
- 43°F
Partly Cloudy
- Wind: 11mph WNW
- Humidity: 51%
- UV index: 6
- Precip. probability: 22%
- Precipitation: 0"
- 6:31 am 7:36 pm CDT
And a mix of showery, cloud-filled, bright and lightning-active weather is forecasted.
Rain is predicted for Wednesday through Sunday.
Substantial differences in temperature are forecasted throughout the forecast window. Maximum temperatures are forecasted between 46.4°F and 75.2°F, while the nightly low temperatures will show also a considerable swing, as nighttime lows are forecast to fall between 28.4°F and 53.6°F.
The warmest day will be Wednesday, with a maximum of 75.2°F; with the highest temperature of 46.4°F, Sunday will be the coldest day.
Rain is predicted for Wednesday through Sunday.
Substantial differences in temperature are forecasted throughout the forecast window. Maximum temperatures are forecasted between 46.4°F and 75.2°F, while the nightly low temperatures will show also a considerable swing, as nighttime lows are forecast to fall between 28.4°F and 53.6°F.
The warmest day will be Wednesday, with a maximum of 75.2°F; with the highest temperature of 46.4°F, Sunday will be the coldest day.
Updated: Apr 1, 2025 @ 17:32:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate