Weather forecast for todayHarristown, IL

Weather forecast for today

Current condition 11:03 am CDT

  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 2mphS 180°
  • Humidity: 49%
  • Dewpoint: 46°F
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
In Harristown, at the moment, the sun dominates the sky, creating a bright and refreshing ambiance.
The temperature is an enjoyable 64.4°F. The current temperature is a few degrees off the maximum of 73.4°F for the day.

Wednesday Oct 21, 2026

  • 73°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSW 235°
  • Humidity: 39%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
On Wednesday, in Harristown, skies will stay clear and sunny.
Temperature readings will span from a daytime high of a warm 73.4°F to a night low of a brisk 44.6°F.
The warmer conditions bring a maximum of 73.4°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: 2 pm 73°C.
Coldest hour: 2 am 48°C.

Chance of precipitation

Highest chance: 2 am 3%.

Hourly weather forecast

  • 12 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSSW 199°
  • Humidity: 44%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSW 226°
  • Humidity: 38%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSSW 211°
  • Humidity: 35%
  • 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: 2mphSW 235°
  • Humidity: 33%
  • 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: 2mphWSW 258°
  • Humidity: 33%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphW 262°
  • Humidity: 35%
  • 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: 1mphWSW 250°
  • Humidity: 45%
  • 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: 1mphNW 326°
  • Humidity: 57%
  • 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: 1mphNNE 23°
  • Humidity: 65%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 99°
  • 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: 2mphE 99°
  • Humidity: 72%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphS 173°
  • Humidity: 74%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Harristown, clear skies and sunny weather are expected.
The temperature will vary between a maximum of 73.4°F and a minimum of 53.6°F. The warmest part of the day will be at 2 pm and 3 pm.
The temperature will feel more alike with September's average high than the expected maximum for October. The night temperature will be comparable to the standard October low of 48°F.
Updated: Oct 21, 2026 @ 16:03:48 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 11:03 am CDT, the temperature in Harristown is 64.4°F.

On Wednesday, the weather remains calm, bright, and sunny.

Today, the maximum temperature will be 73.4°F, while the minimum temperature will be 44.6°F.
The maximum temperature will be noticeably 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).

In Harristown, the length of the day today will be 10h and 55min.