Weather forecast for tomorrowBelleville, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphSSE 161°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:12 am CDT
- Sunset: 6:17 pm CDT
- details ▼
Tomorrow, in Belleville, sun-filled conditions are also expected to persist.
Temperatures will see a substantial oscillation, reaching a high of an enjoyable 66.2°F and dropping to a low of an icy 37.4°F.
The forecasted high for tomorrow will reflect the normal October maximum of 66.7°F.
Sunrise will be at 7:12 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 5min.
Temperatures will see a substantial oscillation, reaching a high of an enjoyable 66.2°F and dropping to a low of an icy 37.4°F.
The forecasted high for tomorrow will reflect the normal October maximum of 66.7°F.
Sunrise will be at 7:12 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 5min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 6%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphSE 128°
- Humidity: 90%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSE 141°
- Humidity: 90%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSSE 157°
- Humidity: 93%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 1mphSSE 151°
- Humidity: 94%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:12 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSSE 153°
- Humidity: 88%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:50°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSSE 161°
- Humidity: 59%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 169°
- Humidity: 40%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 166°
- Humidity: 34%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 160°
- Humidity: 32%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSE 144°
- Humidity: 42%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:17 pm
- 8 pm
- 52°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphSE 138°
- Humidity: 66%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSE 145°
- Humidity: 79%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, mostly cloudless and sunny weather is anticipated.
The temperature will vary between a minimum of 37.4°F and a maximum of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the temperature is forecasted to be resembling the usual maximum for October. Tomorrow, expect the temperature to be more consistent with the typical minimum for November than for October.
The temperature will vary between a minimum of 37.4°F and a maximum of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the temperature is forecasted to be resembling the usual maximum for October. Tomorrow, expect the temperature to be more consistent with the typical minimum for November than for October.
Updated: Oct 17, 2026 @ 17:31:05 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
Frequently asked questions
Tomorrow, conditions remain stable and sunny, with little cloud presence.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature tomorrow will be notably lower than the average low of 48.9°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature tomorrow will be notably lower than the average low of 48.9°F.
On Sunday, in Belleville, sunrise will be at 7:12 am and sunset at 6:17 pm (CDT).
Tomorrow, the daylight will last for 11h and 5min.
