Weather forecast for todayGreenville, IL

Weather forecast for today

Current condition 3:20 pm CDT

  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 3mphSSE 160°
  • Humidity: 31%
  • Dewpoint: 43°F
  • Pressure: 30.28"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
Currently, in Greenville, blue skies stretch endlessly, with the sun at its brightest.
The temperature is a warm 75.2°F. The current temperature is the highest temperature for today.

Tuesday Oct 20, 2026

  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphESE 120°
  • Humidity: 35%
  • UV index: 3
  • Sunrise: 7:12 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
On Tuesday, October 20, sunshine is expected with little to no cloud cover.
Daytime will experience a high of a warm 75.2°F, significantly differing from the anticipated night low of a brisk 42.8°F.
Expect a warmer feel as the forecasted high matches September's 77.9°F, rather than October's average of 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 hour: 4 pm 75°C.
Coldest hour: 12 am 48°C.

Chance of precipitation

Highest chance: 11 pm - 12 am 2%.

Hourly weather forecast

  • 4 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphESE 123°
  • Humidity: 31%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphESE 113°
  • Humidity: 33%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphESE 105°
  • Humidity: 41%
  • 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 86°
  • 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 70°
  • Humidity: 67%
  • 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: 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: 1mphE 79°
  • Humidity: 77%
  • 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 91°
  • Humidity: 79%
  • 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 91°
  • Humidity: 81%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphE 85°
  • Humidity: 81%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the remainder of Tuesday, primarily bright and sunny weather is anticipated.
The temperature will be between a maximum of 75.2°F and a minimum of 50°F. The warmest part of the day is expected around 4 pm.
The day’s peak temperature will reflect September's norm of 77.9°F more than October's 65.3°F. The expected low will be more alike with what’s common in November than the current October average of 48.7°F.
Updated: Oct 20, 2026 @ 20:20:26 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 3:20 pm CDT, the temperature is 75.2°F.

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

Today, the highest temperature will be 75.2°F, while the lowest temperature will be 42.8°F.
The maximum temperature will be significantly higher than the average highest temperature of 65.3°F in October. The lowest temperature will be a few degrees 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).

In Greenville, today, there will be 11h and 0min of daylight.