Weather forecast for tomorrow
Monday, Jun 16.
5:33 am
8:27 pm
CDT
8:27 pm
CDT
Scattered Thunderstorms
79°F / 70°F
- Wind: 6mph SE
- Humidity: 85%
- Precip. probability: 56%
- Precipitation: 0.31"
- UV index: 4
Tomorrow, on Monday, June 16, scattered thunderstorms are expected, and a few may bring strong wind gusts.
The chance of rainfall is high. However, precipitation will be light. A daytime temperature reaching up to a warm 78.8°F will subtly contrast with a nighttime low of a delightful 69.8°F.
The daily maximum temperature is predicted to be relatively lower than June's climate average of 83.7°F.
Sunrise will be at 5:33 am and sunset at 8:27 pm; tomorrow's daylight will last for 14h and 55min.
The chance of rainfall is high. However, precipitation will be light. A daytime temperature reaching up to a warm 78.8°F will subtly contrast with a nighttime low of a delightful 69.8°F.
The daily maximum temperature is predicted to be relatively lower than June's climate average of 83.7°F.
Sunrise will be at 5:33 am and sunset at 8:27 pm; tomorrow's daylight will last for 14h and 55min.
Frequently asked questions
What is the weather forecast for O'Fallon for tomorrow?
On Monday, scattered thunderstorms are expected, with the potential for localized flooding in some areas.
Will it rain tomorrow?
Light precipitation of 0.31" is forecasted. The possibility of rainfall is 56%.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 78.8°F, while the lowest temperature will be 69.8°F.
The highest temperature will be a couple of degrees lower than the average maximum of 83.7°F in June. The lowest temperature will be in line with the average low of 66.6°F.
The highest temperature will be a couple of degrees lower than the average maximum of 83.7°F in June. The lowest temperature will be in line with the average low of 66.6°F.
When are sunrise and sunset tomorrow?
On Monday, in O'Fallon, sunrise will be at 5:33 am and sunset at 8:27 pm (CDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 14h and 55min.
Hourly weather forecast
12 am
- 73°F
- Feels like:
73°F
Partly Cloudy
- Wind: 2mph E
- Pressure: 29.97"Hg
- Humidity: 87%
- Precip. probability: 6%
- Precipitation: 0"
- Visibility: 9mi
2 am
- 72°F
- Feels like:
72°F
Cloudy
- Wind: 1mph ENE
- Pressure: 29.94"Hg
- Humidity: 90%
- Precip. probability: 7%
- Precipitation: 0"
- Visibility: 7mi
4 am
- 72°F
- Feels like:
72°F
Showers
- Wind: 1mph E
- Pressure: 29.94"Hg
- Humidity: 94%
- Precip. probability: 41%
- Precipitation: 0.04"
- Visibility: 7mi
Sunrise: 5:33 am
6 am
- 70°F
- Feels like:
73°F
Cloudy
- Wind: 1mph E
- Pressure: 29.94"Hg
- Humidity: 97%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 4mi
8 am
- 73°F
- Feels like:
75°F
Few Showers
- Wind: 2mph ESE
- Pressure: 29.94"Hg
- Humidity: 92%
- Precip. probability: 32%
- Precipitation: 0.04"
- Visibility: 6mi
10 am
- 75°F
- Feels like:
81°F
Few Showers
- Wind: 4mph SE
- Pressure: 29.94"Hg
- Humidity: 85%
- Precip. probability: 34%
- Precipitation: 0.04"
- Visibility: 7mi
12 pm
- 77°F
- Feels like:
81°F
Isolated Thunderstorms
- Wind: 5mph SE
- Pressure: 29.91"Hg
- Humidity: 85%
- Precip. probability: 34%
- Precipitation: 0.04"
- Visibility: 7mi
2 pm
- 77°F
- Feels like:
82°F
Scattered Thunderstorms
- Wind: 6mph SE
- Pressure: 29.88"Hg
- Humidity: 83%
- Precip. probability: 48%
- Precipitation: 0.12"
- Visibility: 7mi
4 pm
- 77°F
- Feels like:
82°F
Scattered Thunderstorms
- Wind: 6mph SE
- Pressure: 29.85"Hg
- Humidity: 81%
- Precip. probability: 42%
- Precipitation: 0.04"
- Visibility: 7mi
6 pm
- 77°F
- Feels like:
82°F
Cloudy
- Wind: 6mph SE
- Pressure: 29.83"Hg
- Humidity: 83%
- Precip. probability: 16%
- Precipitation: 0"
- Visibility: 10mi
8 pm
- 75°F
- Feels like:
81°F
Mostly Cloudy
- Wind: 3mph SE
- Pressure: 29.83"Hg
- Humidity: 87%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 8:27 pm
10 pm
- 73°F
- Feels like:
75°F
Mostly Cloudy
- Wind: 2mph SE
- Pressure: 29.83"Hg
- Humidity: 95%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 9mi
Tomorrow, on Monday, a combination of overcast, wet and unstable weather is forecasted.
Rainfall is forecasted at 4 am, and from 7 am to 4 pm. With light precipitation of 0.12", most rainfall is expected at 2 pm.
The temperature will be between a minimum of 69.8°F and a maximum of 77°F. The warmest part of the day will be from 11 am to 7 pm.
The high will be moderately lower than the normal maximum of 83.7°F for June. The lowest temperature is also close to June's typical minimum of 66.6°F.
Rainfall is forecasted at 4 am, and from 7 am to 4 pm. With light precipitation of 0.12", most rainfall is expected at 2 pm.
The temperature will be between a minimum of 69.8°F and a maximum of 77°F. The warmest part of the day will be from 11 am to 7 pm.
The high will be moderately lower than the normal maximum of 83.7°F for June. The lowest temperature is also close to June's typical minimum of 66.6°F.
Updated: Jun 16, 2025 @ 02:51:08 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