Weather forecast for 10 daysGrand Tower, IL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSE 137°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:09 am CDT
- Sunset: 6:16 pm CDT
- details ▼
On Sunday, in Grand Tower, sunny skies are also in store, with excellent visibility.
Dramatic temperature shifts from a high of an enjoyable 66.2°F to a low of a wintry 37.4°F are predicted.
Tomorrow's peak is predicted to reflect the usual October high temperature of 67.5°F.
Sunrise will be at 7:09 am and sunset at 6:16 pm; tomorrow's daylight will last for 11h and 8min.
Dramatic temperature shifts from a high of an enjoyable 66.2°F to a low of a wintry 37.4°F are predicted.
Tomorrow's peak is predicted to reflect the usual October high temperature of 67.5°F.
Sunrise will be at 7:09 am and sunset at 6:16 pm; tomorrow's daylight will last for 11h and 8min.
10-day overview
Daily temperatures
Warmest period: Saturday - Sunday 81°C.
Coldest day: tomorrow 66°C.
Coldest day: tomorrow 66°C.
Chance of precipitation
Highest chance: Monday 7%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 36°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphE 88°
- Humidity: 86%
- UV index: 0
- Sunrise: 7:08 am CDT
- Sunset: 6:18 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSE 137°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:09 am CDT
- Sunset: 6:16 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 41°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 4mphSSE 157°
- Humidity: 53%
- UV index: 5
- Sunrise: 7:10 am CDT
- Sunset: 6:15 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 43°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphNE 49°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:11 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 43°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphNNE 22°
- Humidity: 50%
- UV index: 5
- Sunrise: 7:12 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 43°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphNNE 20°
- Humidity: 52%
- UV index: 5
- Sunrise: 7:13 am CDT
- Sunset: 6:11 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 46°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphENE 71°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:14 am CDT
- Sunset: 6:10 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 46°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSE 132°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:15 am CDT
- Sunset: 6:09 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphSSW 193°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:16 am CDT
- Sunset: 6:07 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 79°F
- 46°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphE 89°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:17 am CDT
- Sunset: 6:06 pm CDT
- details ▼
Over the next ten days, conditions will reflect that a combination of mostly clear and gloomy weather is anticipated.
Rainfall is not forecasted in Grand Tower in the upcoming days.
There will be a considerable variation in temperature in the coming days. The temperature is expected to swing from 66.2°F up to 80.6°F, while there will be also a marked difference in overnight low temperatures, as nighttime lows are forecast to fall between 35.6°F and 48.2°F.
With a maximum temperature of 80.6°F, next Saturday and Sunday will be the warmest days; the lowest daytime temperature of the period will be reached on Sunday, peaking at 66.2°F.
Rainfall is not forecasted in Grand Tower in the upcoming days.
There will be a considerable variation in temperature in the coming days. The temperature is expected to swing from 66.2°F up to 80.6°F, while there will be also a marked difference in overnight low temperatures, as nighttime lows are forecast to fall between 35.6°F and 48.2°F.
With a maximum temperature of 80.6°F, next Saturday and Sunday will be the warmest days; the lowest daytime temperature of the period will be reached on Sunday, peaking at 66.2°F.
Updated: Oct 18, 2026 @ 00:14:18 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, the weather remains calm, bright, and sunny.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 67.5°F in October. Tomorrow, the lowest temperature will be uncommonly lower than the average low of 49.3°F.
The highest temperature will be in line with the average maximum of 67.5°F in October. Tomorrow, the lowest temperature will be uncommonly lower than the average low of 49.3°F.
On Sunday, in Grand Tower, sunrise will be at 7:09 am and sunset at 6:16 pm (CDT).
Tomorrow in Grand Tower, the daylight will last for 11h and 8min.
