Weather forecast for tomorrowMattoon, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphS 170°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:06 am CDT
- Sunset: 6:10 pm CDT
- details ▼
Tomorrow, a sun-drenched sky is also anticipated.
A stark contrast will be observed between the day's peak temperature of a comfortable 66.2°F and the night's low of an icy 37.4°F.
Tomorrow's forecasted high will be in line with October's typical peak of 63.9°F.
Sunrise will be at 7:06 am and sunset at 6:10 pm; tomorrow's daylight will last for 11h and 4min.
A stark contrast will be observed between the day's peak temperature of a comfortable 66.2°F and the night's low of an icy 37.4°F.
Tomorrow's forecasted high will be in line with October's typical peak of 63.9°F.
Sunrise will be at 7:06 am and sunset at 6:10 pm; tomorrow's daylight will last for 11h and 4min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 3%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSE 143°
- Humidity: 72%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSSE 157°
- Humidity: 74%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSSE 159°
- Humidity: 79%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:34°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphSSE 163°
- Humidity: 81%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:06 am
- 8 am
- 39°F
- Feels like:36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphSSE 168°
- Humidity: 77%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphS 175°
- Humidity: 52%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphS 178°
- Humidity: 39%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphS 174°
- Humidity: 32%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphS 170°
- Humidity: 31%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSSE 157°
- Humidity: 41%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:10 pm
- 8 pm
- 52°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSSE 148°
- Humidity: 63%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:46°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSSE 151°
- Humidity: 70%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, sunny conditions are likely to prevail.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The highest temperature will be similar to October's average maximum of 63.9°F. Tomorrow, expect the temperature to be more close to the typical minimum for November than for October.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The highest temperature will be similar to October's average maximum of 63.9°F. Tomorrow, expect the temperature to be more close to the typical minimum for November than for October.
Updated: Oct 17, 2026 @ 19:10:28 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, skies will stay clear and sunny.
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 will be noticeably lower than the average low of 48.2°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be noticeably lower than the average low of 48.2°F.
On Sunday, in Mattoon, sunrise will be at 7:06 am and sunset at 6:10 pm (CDT).
In Mattoon, tomorrow, there will be 11h and 4min of daylight.
