Weather forecast for tomorrowEureka, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 37°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 12mphSSW 193°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:11 am CDT
- Sunset: 6:12 pm CDT
- details ▼
Tomorrow, expect bright skies and plenty of sunshine.
Day and night temperatures will contrast sharply, from a maximum of an enjoyable 64.4°F to a minimum of a wintry 37.4°F.
Tomorrow, the anticipated maximum temperature should be consistent with October's typical high of 61.9°F.
Sunrise will be at 7:11 am and sunset at 6:12 pm; tomorrow's daylight will last for 11h and 1min.
Day and night temperatures will contrast sharply, from a maximum of an enjoyable 64.4°F to a minimum of a wintry 37.4°F.
Tomorrow, the anticipated maximum temperature should be consistent with October's typical high of 61.9°F.
Sunrise will be at 7:11 am and sunset at 6:12 pm; tomorrow's daylight will last for 11h and 1min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 63°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:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphS 177°
- Humidity: 77%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphS 183°
- Humidity: 79%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphS 184°
- Humidity: 81%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:34°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphS 184°
- Humidity: 80%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:11 am
- 8 am
- 41°F
- Feels like:36°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 187°
- Humidity: 76%
- 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: 10mphSSW 192°
- Humidity: 53%
- 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: 12mphSSW 197°
- Humidity: 41%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphSSW 197°
- Humidity: 36%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphSSW 194°
- Humidity: 33%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphS 182°
- Humidity: 43%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:12 pm
- 8 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphS 172°
- 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: 6mphS 173°
- Humidity: 68%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, mostly cloudless and sunny weather is anticipated.
The temperature will be between the lowest temperature of 39.2°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature tomorrow will be consistent with October's average high. The minimum temperature will be more consistent with November's average low of 34.7°F than October's typical 46.4°F.
The temperature will be between the lowest temperature of 39.2°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature tomorrow will be consistent with October's average high. The minimum temperature will be more consistent with November's average low of 34.7°F than October's typical 46.4°F.
Updated: Oct 17, 2026 @ 20:53:06 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, in Eureka, conditions remain stable and sunny, with little cloud presence.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be in line with the average highest temperature of 61.9°F in October. Tomorrow, the lowest temperature will be slightly cooler than the average low temperature.
The maximum temperature will be in line with the average highest temperature of 61.9°F in October. Tomorrow, the lowest temperature will be slightly cooler than the average low temperature.
On Sunday, in Eureka, sunrise will be at 7:11 am and sunset at 6:12 pm (CDT).
In Eureka, tomorrow, there will be 11h and 1min of daylight.
