Weather forecast for todayJohnston City, IL

Weather forecast for today

Current condition 2:11 pm CDT

  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 4mphNNE 30°
  • Humidity: 34%
  • Dewpoint: 45°F
  • Pressure: 30.29"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
In Johnston City, currently, the sun’s rays are illuminating everything under a clear sky.
The temperature is a temperate 73.4°F. The current temperature is nearly at the maximum of today's predicted 75.2°F.

Tuesday Oct 20, 2026

  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphENE 59°
  • Humidity: 36%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
Today, on Tuesday, October 20, the forecast calls for abundant sunshine.
Daytime will experience a high of a moderately hot 75.2°F, significantly differing from the forecasted night low of a chilly 42.8°F.
With a forecast of 75.2°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise was at 7:09 am and sunset will be at 6:11 pm; the daylight will last for 11h and 2min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 4 pm 73°C.
Coldest hour: 12 am 48°C.

Chance of precipitation

Highest chance: 11 pm - 12 am 2%.

Hourly weather forecast

  • 3 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNE 49°
  • Humidity: 33%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphENE 57°
  • Humidity: 34%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphENE 60°
  • Humidity: 36%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphENE 65°
  • Humidity: 44%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:11 pm
  • 7 pm
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphENE 65°
  • Humidity: 54%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphENE 66°
  • Humidity: 66%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphENE 69°
  • Humidity: 73%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphENE 68°
  • Humidity: 78%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphE 82°
  • Humidity: 80%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphE 81°
  • Humidity: 84%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of Tuesday, mainly sunny weather and a cloudless sky are anticipated.
The temperature will be between the highest temperature of 73.4°F and the lowest temperature of 50°F. The warmest part of the day will be at 3 pm and 4 pm.
The highest temperature is more in line with September's average maximum of 80.1°F than October's usual of 67.3°F. The minimum temperature will be more consistent with November's average low of 38.5°F than October's typical 49.6°F.
Updated: Oct 20, 2026 @ 19:11:19 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (2:11 pm CDT) it is 73.4°F in Johnston City.

Today, sunny skies are in store, with excellent visibility.

Today, the highest temperature will be 75.2°F, while the lowest temperature will be 42.8°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 67.3°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 49.6°F.

On Tuesday, in Johnston City, sunrise was at 7:09 am and sunset will be at 6:11 pm (CDT).

Today, the daylight will last for 11h and 2min.