Weather forecast for 10 daysGrand Chain, IL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 4mphESE 112°
- Humidity: 55%
- UV index: 5
- Sunrise: 7:07 am CDT
- Sunset: 6:15 pm CDT
- details ▼
Tomorrow, on Sunday, sunny conditions are expected to continue.
Temperatures are anticipated to move from a peak of an agreeable 68°F to a low of a wintry 39.2°F.
The predicted daytime maximum should align with the typical October high of 67.8°F.
Sunrise will be at 7:07 am and sunset at 6:15 pm; tomorrow's daylight will last for 11h and 8min.
Temperatures are anticipated to move from a peak of an agreeable 68°F to a low of a wintry 39.2°F.
The predicted daytime maximum should align with the typical October high of 67.8°F.
Sunrise will be at 7:07 am and sunset at 6:15 pm; tomorrow's daylight will last for 11h and 8min.
10-day overview
Daily temperatures
Warmest period: Saturday - Sunday 81°C.
Coldest day: tomorrow 68°C.
Coldest day: tomorrow 68°C.
Chance of precipitation
Highest chance: Tuesday 14%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphENE 74°
- Humidity: 91%
- UV index: 0
- Sunrise: 7:06 am CDT
- Sunset: 6:16 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 4mphESE 112°
- Humidity: 55%
- UV index: 5
- Sunrise: 7:07 am CDT
- Sunset: 6:15 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 43°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 2mphSSE 155°
- Humidity: 52%
- UV index: 5
- Sunrise: 7:08 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 43°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 4mphNE 50°
- Humidity: 50%
- UV index: 5
- Sunrise: 7:08 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 77°F
- 45°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphNE 38°
- Humidity: 50%
- UV index: 5
- Sunrise: 7:09 am CDT
- Sunset: 6:11 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphNNE 31°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:10 am CDT
- Sunset: 6:10 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 46°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphENE 70°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:11 am CDT
- Sunset: 6:08 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSE 139°
- Humidity: 47%
- UV index: 5
- Sunrise: 7:12 am CDT
- Sunset: 6:07 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 50°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSW 208°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:13 am CDT
- Sunset: 6:06 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 79°F
- 48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphWSW 250°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:14 am CDT
- Sunset: 6:05 pm CDT
- details ▼
During the upcoming ten-day period, a combination of mostly clear and overcast weather is anticipated.
Rain is not expected in Grand Chain in the upcoming period.
There will be a considerable variation in temperature in the upcoming period. Forecast highs will fluctuate between 68°F and 80.6°F, while the difference in minimum temperatures will be also substantial, as the minimum temperature is expected to range between 37.4°F and 50°F.
The warmest days in Grand Chain will be next Saturday and Sunday, with a maximum of 80.6°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 68°F.
Rain is not expected in Grand Chain in the upcoming period.
There will be a considerable variation in temperature in the upcoming period. Forecast highs will fluctuate between 68°F and 80.6°F, while the difference in minimum temperatures will be also substantial, as the minimum temperature is expected to range between 37.4°F and 50°F.
The warmest days in Grand Chain will be next Saturday and Sunday, with a maximum of 80.6°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 68°F.
Updated: Oct 18, 2026 @ 02:23:18 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, sunshine and minimal clouds are in the outlook.
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 39.2°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be notably lower than the average low of 49.6°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be notably lower than the average low of 49.6°F.
On Sunday, in Grand Chain, sunrise will be at 7:07 am and sunset at 6:15 pm (CDT).
In Grand Chain, the length of the day tomorrow will be 11h and 8min.
