Weather forecast for 10 daysMerna, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphSSW 193°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
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.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 77°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: Monday 26.10. 9%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphSSW 192°
  • Humidity: 69%
  • UV index: 0
  • Sunrise: 7:08 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphSSW 193°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphS 178°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphESE 111°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSW 195°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphENE 59°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphESE 119°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSSE 148°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphSSW 197°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 8mphS 184°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
In the days ahead, a combination of dry and sunny and cloudy weather is predicted.
Rainfall is not forecasted in Merna in the upcoming days.
Noticeable swings in temperature are expected over the next several days. Maximum temperatures are forecasted between 64.4°F and 77°F, while the lowest nightly temperature differences will be also quite pronounced, as nighttime lows are forecast to fall between 37.4°F and 50°F.
Next Sunday will be the warmest day, with a maximum temperature of 77°F; with the highest temperature of 64.4°F, Sunday will be the coldest day.
Updated: Oct 17, 2026 @ 21:20:47 UTC
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.

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.