Weather forecast for todayMerna, IL

Weather forecast for today

Current condition 4:35 am CDT

  • 39°F
  • Feels like:
    34°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 8mphS 180°
  • Humidity: 77%
  • Dewpoint: 34°F
  • Pressure: 30.48"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Merna, at the moment, the air is crisp, and the sky remains beautifully clear.
The temperature is a wintry 39.2°F, the apparent reading is assessed at an icy 33.8°F. The present temperature is at its lowest of the day.

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphSSW 192°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
Today, on Sunday, October 18, skies will stay clear and sunny.
Temperature readings are anticipated to span from a high of a comfortable 66.2°F to a low of a wintry 39.2°F.
The temperature for today is expected to be a few degrees higher than the October average of 62.1°F.
Sunrise will be at 7:09 am and sunset at 6:10 pm; the daylight will last for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest period: 5 am - 7 am 39°C.

Chance of precipitation

Highest chance: 2%.

Hourly weather forecast

  • 6 am
  • 39°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphS 184°
  • Humidity: 79%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 41°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphS 189°
  • Humidity: 77%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 193°
  • Humidity: 55%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSSW 198°
  • Humidity: 42%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 196°
  • Humidity: 35%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 194°
  • Humidity: 33%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 180°
  • Humidity: 41%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:10 pm
  • 8 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSE 164°
  • Humidity: 56%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphS 171°
  • Humidity: 67%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Merna, mainly sunny weather and a cloudless sky are anticipated.
The temperature will vary between the highest temperature of 64.4°F and the lowest temperature of 39.2°F. The feels-like temperature will vary between a maximum of 62.6°F and a minimum of 32°F. The warmest part of the day will be at 3 pm and 4 pm.
Today, the forecasted high will be slightly warmer than October's typical peak temperature. The lowest temperature is more resembling November's average minimum of 34.7°F than the usual minimum of 46.6°F in October.
Updated: Oct 18, 2026 @ 09:35:19 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (4:35 am CDT) is 39.2°F. Feels-like temperature is 33.8°F.

On Sunday, skies are expected to be clear and full of sunshine.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The highest temperature will be moderately higher than the average maximum of 62.1°F in October. The lowest temperature today will be also slightly cooler than the average low temperature.

On Sunday, in Merna, sunrise will be at 7:09 am and sunset at 6:10 pm (CDT).

Today, the daylight will last for 11h and 1min.