Weather forecast for 10 daysRock Falls, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 13mphSSW 197°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Tomorrow, in Rock Falls, expect bright skies and plenty of sunshine.
Temperatures will see a substantial oscillation, reaching a high of an enjoyable 66.2°F and dropping to a low of an icy 37.4°F.
Tomorrow, the predicted peak temperature is set to be a few degrees higher than the typical October temperature of 60.6°F.
Sunrise will be at 7:14 am and sunset at 6:12 pm; tomorrow's daylight will last for 10h and 58min.

10-day overview

Daily temperatures

Warmest period: Thursday - Friday 75°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: Sunday 25.10. 7%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 39°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSW 194°
  • Humidity: 72%
  • UV index: 0
  • Sunrise: 7:13 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 13mphSSW 197°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphS 172°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphESE 120°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphS 175°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphESE 110°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSE 127°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphSSE 150°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:21 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphSSW 194°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:22 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphNE 46°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:24 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
During the upcoming ten-day period, a combination of bright and dull weather is anticipated.
Rainfall is not expected in Rock Falls in the upcoming period.
In the coming days, the highest temperature will range between 66.2°F and 75.2°F, while the variation in nighttime lows will be notably wide, as nighttime lows are forecast to fall between 37.4°F and 50°F.
The warmest days will be Thursday and Friday, with a maximum of 75.2°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 66.2°F.
Updated: Oct 18, 2026 @ 03:30:15 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Rock Falls, sunny and dry conditions are anticipated.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 44.6°F.

On Sunday, in Rock Falls, sunrise will be at 7:14 am and sunset at 6:12 pm (CDT).

In Rock Falls, the length of the day tomorrow will be 10h and 58min.