Weather forecast for todayHarristown, IL

Weather forecast for today

Current condition 8:10 am CDT

  • 45°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 1mphSSE 160°
  • Humidity: 86%
  • Dewpoint: 41°F
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Harristown, currently, sunshine is pouring down, making for a beautiful day.
The temperature is a frosty 44.6°F. The current temperature is at the minimum predicted for today.

Wednesday Oct 21, 2026

  • 75°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphSW 227°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
On Wednesday, October 21, skies are expected to be clear and full of sunshine.
Substantial temperature fluctuations from a high of a temperate 75.2°F to a low of a brisk 44.6°F are forecasted.
The warmer conditions bring a maximum of 75.2°F, more representative of September than October.
Sunrise was at 7:13 am and sunset will be at 6:08 pm; the daylight will last for 10h and 55min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 73°C.
Coldest hour: 9 am 50°C.

Chance of precipitation

Highest chance: 11 pm 2%.

Hourly weather forecast

  • 9 am
  • 50°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphSE 144°
  • Humidity: 75%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphS 180°
  • Humidity: 59%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphS 186°
  • Humidity: 50%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSSW 213°
  • Humidity: 44%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphWSW 241°
  • Humidity: 38%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSW 221°
  • Humidity: 34%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 3 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphWSW 253°
  • Humidity: 32%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphW 265°
  • Humidity: 33%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphW 263°
  • Humidity: 36%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphW 270°
  • Humidity: 43%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:08 pm
  • 7 pm
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNW 313°
  • Humidity: 55%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphN 350°
  • Humidity: 64%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphNNE 17°
  • Humidity: 69%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphNE 34°
  • Humidity: 72%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphESE 106°
  • Humidity: 75%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, clear skies and sunny weather are expected.
The temperature will vary between a minimum of 50°F and a maximum of 73.4°F. The warmest part of the day will be around 3 pm.
The forecasted maximum is more alike with September's typical high of 77°F than the average for October. The night temperature will be in line with the standard October low of 48°F.
Updated: Oct 21, 2026 @ 13:10:25 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (8:10 am CDT) is 44.6°F.

On Wednesday, sunshine is expected with little to no cloud cover.

Today, the maximum temperature will be 75.2°F, while the minimum temperature will be 44.6°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 64°F in October. The lowest temperature will be in line with the average low of 48°F.

On Wednesday, in Harristown, sunrise was at 7:13 am and sunset will be at 6:08 pm (CDT).

Today, the daylight will last for 10h and 55min.