Weather forecast for todayGrand Chain, IL

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 1:21 pm CDT

  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 2mphESE 110°
  • Humidity: 34%
  • Dewpoint: 45°F
  • Pressure: 30.22"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
Currently, in Grand Chain, the weather is bright and sunny.
The temperature is a temperate 75.2°F. The current temperature is nearly at the maximum of today's 77°F.

Wednesday Oct 21, 2026

  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphNNE 16°
  • Humidity: 34%
  • UV index: 5
  • Sunrise: 7:09 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
On Wednesday, in Grand Chain, sunshine and minimal clouds are in the outlook.
Temperature readings will span from a daytime high of a temperate 77°F to a night low of a brisk 44.6°F.
The forecast high of 77°F aligns more closely with September's typical high of 81.1°F than with October's usual 67.8°F.
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 hour: 3 pm 77°C.
Coldest hour: 11 pm 52°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: 2mphNNE 22°
  • Humidity: 32%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 77°F
  • Feels like:
    77°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 23°
  • Humidity: 31%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 22°
  • Humidity: 32%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 15°
  • Humidity: 34%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphN 11°
  • Humidity: 43%
  • Pressure: 30.15"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: 1mphNNE 22°
  • Humidity: 60%
  • 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 22°
  • Humidity: 72%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 0mphNE 34°
  • Humidity: 83%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 0mphNNE 26°
  • Humidity: 88%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 0mphN 11°
  • Humidity: 90%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the remainder of Wednesday, sunshine is expected.
The temperature will be between a maximum of 77°F and a minimum of 51.8°F. The warmest part of the day will be around 3 pm.
The forecasted maximum is more in line with September's typical high of 81.1°F than the average for October. Forecasts indicate a night temperature moderately lower than the usual October minimum of 49.6°F.
Updated: Oct 21, 2026 @ 18:21:32 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 1:21 pm CDT, the temperature in Grand Chain is 75.2°F.

On Wednesday, uninterrupted sunshine is anticipated.

Today, the maximum temperature will be 77°F, while the minimum temperature will be 44.6°F.
The maximum temperature will be notably higher than the average highest temperature of 67.8°F in October. The lowest temperature will be a couple of degrees lower than the average low of 49.6°F.

On Wednesday, in Grand Chain, sunrise was at 7:09 am and sunset will be at 6:11 pm (CDT).

In Grand Chain, today, there will be 11h and 2min of daylight.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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Grand Chain, Illinois, USA

  • en: Grand Chain, Illinois, USA
  • es: Grand Chain, Illinois, EE.UU.
  • hr: Grand Čeйn, Ilinois, SAD
  • mk: Grand Čeйn, Ilinois, SAD
  • sr: Grand Čeйn, Ilinois, SAD
  • zh: Grand Chain, 伊利诺伊, 美国
  • Latitude: 37.252687°
  • Longitude: -89.023824°
  • Elevation: 374 ft
  • Current time: 1:21pm CDT
  • Sunrise: 7:09 am CDT
  • Sunset: 6:11 pm CDT
  • Timezone: America/Chicago

Nearby Grand Chain, Illinois, USA

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