Weather forecast for tomorrowChatham, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphS 177°
- Humidity: 46%
- UV index: 4
- Sunrise: 7:12 am CDT
- Sunset: 6:15 pm CDT
- details ▼
Tomorrow, in Chatham, conditions will remain bright with clear skies.
Temperatures are set to span a considerable range, with a high of a breezy 66.2°F and a low of an icy 37.4°F.
Tomorrow's maximum temperature is expected to reflect the standard October high of 64.2°F.
Sunrise will be at 7:12 am and sunset at 6:15 pm; tomorrow's daylight will last for 11h and 3min.
Temperatures are set to span a considerable range, with a high of a breezy 66.2°F and a low of an icy 37.4°F.
Tomorrow's maximum temperature is expected to reflect the standard October high of 64.2°F.
Sunrise will be at 7:12 am and sunset at 6:15 pm; tomorrow's daylight will last for 11h and 3min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest period: 3 am - 6 am 39°C.
Coldest period: 3 am - 6 am 39°C.
Chance of precipitation
Highest chance: 3 am - 6 am 4%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:39°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSSE 165°
- Humidity: 75%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSSE 159°
- Humidity: 80%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphS 172°
- Humidity: 82%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphSSE 167°
- Humidity: 81%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:12 am
- 8 am
- 41°F
- Feels like:37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphS 172°
- Humidity: 79%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:50°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphS 183°
- Humidity: 50%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphS 182°
- Humidity: 36%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphS 184°
- Humidity: 31%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphS 176°
- Humidity: 30%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSE 168°
- Humidity: 39%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:15 pm
- 8 pm
- 52°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphSSE 158°
- Humidity: 59%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:45°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSE 162°
- Humidity: 68%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, bright and mostly sunny weather is expected.
The temperature will vary between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the forecasted high aligns resembling the average peak in October. Tomorrow, the overnight low is more consistent with November's usual minimum of 36.3°F than October's 48.2°F.
The temperature will vary between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the forecasted high aligns resembling the average peak in October. Tomorrow, the overnight low is more consistent with November's usual minimum of 36.3°F than October's 48.2°F.
Updated: Oct 17, 2026 @ 16:05:51 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, in Chatham, bright and sunny weather is expected.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 64.2°F in October. The lowest temperature will be uncommonly lower than the average low of 48.2°F.
The highest temperature will be in line with the average maximum of 64.2°F in October. The lowest temperature will be uncommonly lower than the average low of 48.2°F.
On Sunday, in Chatham, sunrise will be at 7:12 am and sunset at 6:15 pm (CDT).
In Chatham, Illinois, tomorrow, there will be 11h and 3min of daylight.
