Weather forecast for tomorrowLerna, IL

Weather forecast for tomorrow

Monday Oct 26, 2026

  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphSW 217°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:14 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
Tomorrow, moments of sunshine will break through the patchy clouds.
A stark contrast will be observed between the day's peak temperature of a warm 77°F and the night's low of a frosty 48.2°F.
This October day will feature warmer weather, consistent with September's average of 77.2°F.
Sunrise will be at 7:14 am and sunset at 5:59 pm; tomorrow's daylight will last for 10h and 44min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 75°C.
Coldest hour: 6 am 50°C.

Chance of precipitation

Highest chance: 6 am 4%.

Hourly weather forecast

  • 12 am
  • 55°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphS 177°
  • Humidity: 76%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 54°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphS 186°
  • Humidity: 79%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 52°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphSSW 198°
  • Humidity: 87%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 50°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphSSW 209°
  • Humidity: 88%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:14 am
  • 8 am
  • 52°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphSSW 213°
  • Humidity: 86%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSW 225°
  • Humidity: 61%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 72°F
  • Feels like:
    72°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSW 231°
  • Humidity: 42%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSW 223°
  • Humidity: 36%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 209°
  • Humidity: 35%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:59 pm
  • 6 pm
  • 70°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSSW 202°
  • Humidity: 47%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphS 189°
  • Humidity: 69%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSW 193°
  • Humidity: 72%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily cloud-filled and occasionally mostly clear weather is anticipated.
The temperature will vary between the lowest temperature of 50°F and the highest temperature of 75.2°F. The warmest part of the day will be from 1 pm to 4 pm.
The day’s peak temperature will reflect September's norm of 77.2°F more than October's 63.9°F. The lowest temperature is alike with October's typical minimum of 48.2°F.
Updated: Oct 25, 2026 @ 21:17:45 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, sun and clouds will share the sky, creating a partly cloudy day.

Tomorrow, the highest temperature in Lerna, Illinois, will be 77°F, while the lowest temperature will be 48.2°F.
The maximum temperature will be notably higher than the average highest temperature of 63.9°F in October. The lowest temperature will be in line with the average low of 48.2°F.

On Monday, in Lerna, sunrise will be at 7:14 am and sunset at 5:59 pm (CDT).

Tomorrow, the daylight will last for 10h and 44min.