Weather forecast for todayGreenville, IL

Weather forecast for today

Current condition 1:42 pm CDT

  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 2mphSSW 200°
  • Humidity: 30%
  • Dewpoint: 43°F
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
Currently, in Greenville, sunshine is pouring down, making for a beautiful day.
The temperature is a moderately hot 75.2°F. The current temperature is nearly at the maximum 77°F for today.

Tuesday Oct 20, 2026

  • 77°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 126°
  • Humidity: 33%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
On Tuesday, October 20, sun-filled conditions are expected to persist.
Substantial temperature variations are anticipated, soaring to a maximum of a warm 77°F and descending to a minimum of a chilly 42.8°F.
Forecasts show a high closer to September's climate pattern, around 77.9°F, rather than October's 65.3°F.
Sunrise was at 7:12 am and sunset will be at 6:12 pm; the daylight will last for 11h and 0min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 4 pm 75°C.
Coldest hour: 11 pm 50°C.

Chance of precipitation

Highest chance: 10 pm - 11 pm 2%.

Hourly weather forecast

  • 2 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSE 131°
  • Humidity: 30%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSE 136°
  • Humidity: 29%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSE 131°
  • Humidity: 29%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphESE 120°
  • Humidity: 34%
  • 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: 2mphESE 115°
  • Humidity: 42%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 7 pm
  • 61°F
  • Feels like:
    61°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 91°
  • Humidity: 58%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphENE 71°
  • Humidity: 68%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphENE 73°
  • Humidity: 72%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphE 79°
  • Humidity: 76%
  • 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 90°
  • Humidity: 78%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of the day, primarily bright and sunny weather is anticipated.
The temperature will vary between a minimum of 50°F and a maximum of 75.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The day’s peak temperature will reflect September's norm of 77.9°F more than October's 65.3°F. The lowest temperature is more resembling November's average minimum of 37.2°F than the usual minimum of 48.7°F in October.
Updated: Oct 20, 2026 @ 18:42:06 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 1:42 pm CDT, the temperature in Greenville is 75.2°F.

Today, in Greenville, uninterrupted sunshine is anticipated.

Today, the maximum temperature will be 77°F, while the minimum temperature will be 42.8°F.
The highest temperature will be noticeably higher than the average maximum of 65.3°F in October. The lowest temperature will be relatively lower than the average low of 48.7°F.

On Tuesday, in Greenville, sunrise was at 7:12 am and sunset will be at 6:12 pm (CDT).

Today, the daylight will last for 11h and 0min.