Weather forecast for tomorrowSummit, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphSSW 205°
- Humidity: 46%
- UV index: 4
- Sunrise: 7:07 am CDT
- Sunset: 6:05 pm CDT
- details ▼
On Sunday, in Summit, the forecast calls for abundant sunshine.
The temperature will fluctuate from a high of a breezy 64.4°F to a low of a brisk 42.8°F.
Tomorrow, the predicted high temperature will be moderately higher than the average October peak of 60.1°F.
Sunrise will be at 7:07 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 58min.
The temperature will fluctuate from a high of a breezy 64.4°F to a low of a brisk 42.8°F.
Tomorrow, the predicted high temperature will be moderately higher than the average October peak of 60.1°F.
Sunrise will be at 7:07 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 43°C.
Coldest hour: 6 am 43°C.
Chance of precipitation
Highest chance: 12 am - 3 am 3%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:43°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphSSW 204°
- Humidity: 68%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphSSW 206°
- Humidity: 73%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphSSW 203°
- Humidity: 72%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 203°
- Humidity: 71%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:07 am
- 8 am
- 45°F
- Feels like:39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 202°
- Humidity: 65%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphSSW 208°
- Humidity: 50%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 13mphSSW 206°
- Humidity: 41%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 207°
- Humidity: 37%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 13mphSSW 205°
- Humidity: 35%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphSSW 193°
- Humidity: 41%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:05 pm
- 8 pm
- 55°F
- Feels like:54°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphS 187°
- Humidity: 49%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 54°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphSSW 196°
- Humidity: 54%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, bright and mostly sunny weather is expected.
The temperature will vary between a minimum of 42.8°F and a maximum of 62.6°F. The warmest part of the day will be from 2 pm to 5 pm.
The highest temperature tomorrow will be slightly warmer than October's typical maximum temperature. Tomorrow, the temperature is expected to be also moderately lower than October's normal minimum of 47.8°F.
The temperature will vary between a minimum of 42.8°F and a maximum of 62.6°F. The warmest part of the day will be from 2 pm to 5 pm.
The highest temperature tomorrow will be slightly warmer than October's typical maximum temperature. Tomorrow, the temperature is expected to be also moderately lower than October's normal minimum of 47.8°F.
Updated: Oct 17, 2026 @ 18:50:05 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
On Sunday, clear skies and sunshine are anticipated.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 42.8°F.
The highest temperature will be a few degrees higher than the average maximum of 60.1°F in October. Tomorrow, the lowest temperature will be also slightly cooler than the average low temperature.
The highest temperature will be a few degrees higher than the average maximum of 60.1°F in October. Tomorrow, the lowest temperature will be also slightly cooler than the average low temperature.
On Sunday, in Summit, sunrise will be at 7:07 am and sunset at 6:05 pm (CDT).
Tomorrow, the daylight will last for 10h and 58min.
