Weather forecast for tomorrowMerna, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 13mphSSW 193°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:10 pm CDT
- details ▼
On Sunday, in Merna, sunny and dry conditions are also anticipated.
The temperature is expected to vary significantly from a high of a comfortable 64.4°F to a low of a wintry 37.4°F.
Tomorrow's high temperature will mirror the usual October maximum of 62.1°F.
Sunrise will be at 7:09 am and sunset at 6:10 pm; tomorrow's daylight will last for 11h and 1min.
The temperature is expected to vary significantly from a high of a comfortable 64.4°F to a low of a wintry 37.4°F.
Tomorrow's high temperature will mirror the usual October maximum of 62.1°F.
Sunrise will be at 7:09 am and sunset at 6:10 pm; tomorrow's daylight will last for 11h and 1min.
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: 12 am - 6 am 3%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 172°
- Humidity: 81%
- 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: 7mphS 179°
- Humidity: 81%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:34°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 185°
- Humidity: 80%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:34°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphS 187°
- Humidity: 80%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:09 am
- 8 am
- 41°F
- Feels like:36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphS 189°
- Humidity: 75%
- 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 192°
- Humidity: 51%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSSW 199°
- Humidity: 40%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSSW 196°
- Humidity: 34%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSSW 195°
- Humidity: 34%
- 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: 7mphS 178°
- Humidity: 43%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:10 pm
- 8 pm
- 52°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSE 167°
- Humidity: 57%
- 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: 7mphS 173°
- Humidity: 66%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, mostly cloudless and sunny weather is anticipated.
The temperature will vary between a minimum of 39.2°F and a maximum of 64.4°F. The warmest part of the day is anticipated around 3 pm.
Tomorrow, the forecasted high aligns consistent with the average peak in October. The lowest temperature tomorrow is more comparable to November's average minimum of 34.7°F than the average low in October of 46.6°F.
The temperature will vary between a minimum of 39.2°F and a maximum of 64.4°F. The warmest part of the day is anticipated around 3 pm.
Tomorrow, the forecasted high aligns consistent with the average peak in October. The lowest temperature tomorrow is more comparable to November's average minimum of 34.7°F than the average low in October of 46.6°F.
Updated: Oct 17, 2026 @ 21:20:47 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 Merna, expect sunny weather with a crisp, clear sky.
Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 37.4°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be noticeably lower than the average low of 46.6°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be noticeably lower than the average low of 46.6°F.
On Sunday, in Merna, sunrise will be at 7:09 am and sunset at 6:10 pm (CDT).
In Merna, the length of the day tomorrow will be 11h and 1min.
