Weather forecast for 10 daysProphetstown, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSW 221°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
Today, on Saturday, October 17, expect sunny weather with a crisp, clear sky.
The temperature is predicted to vary between a maximum of a moderate 57.2°F and a minimum of a wintry 39.2°F.
The highest temperature for today is expected to be slightly cooler than the average October temperature of 61°F.
Sunrise was at 7:14 am and sunset will be at 6:15 pm; the daylight will last for 11h and 1min.

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 196°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
On Sunday, October 18, sunshine will likely continue with scattered clouds at most.
Considerable temperature fluctuations from a high of a comfortable 66.2°F to a low of an icy 37.4°F are predicted.
The predicted peak temperature today will be a couple of degrees higher than the average October maximum of 61°F.
Sunrise will be at 7:15 am and sunset at 6:14 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Warmest period: Thursday - Sunday 75°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: 9%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSW 221°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 196°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSE 168°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSE 134°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 5mphS 176°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphESE 118°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSE 124°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphSE 142°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:22 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSW 211°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:23 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 6mphNE 49°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:24 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
It is expected that a combination of mostly clear and dull weather is expected.
Rainfall is not forecasted in Prophetstown in the upcoming days.
The temperature will vary considerably in the coming days. The temperature is expected to swing from 57.2°F up to 75.2°F, while the nightly low temperatures will show also a considerable swing, as nighttime lows are forecast to fall between 37.4°F and 50°F.
With a maximum temperature of 75.2°F, Thursday through next Sunday will be the warmest days in Prophetstown; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 17, 2026 @ 15:10:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, skies will stay clear and sunny.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 39.2°F.
Today, the highest temperature will be relatively lower than the average maximum temperature in October. Today, the lowest temperature will be also a couple of degrees lower than the average low temperature.

On Saturday, in Prophetstown, sunrise was at 7:14 am and sunset will be at 6:15 pm (CDT).

In Prophetstown, Illinois, today, there will be 11h and 1min of daylight.

Tomorrow, expect bright skies and plenty of sunshine.

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

On Sunday, in Prophetstown, sunrise will be at 7:15 am and sunset at 6:14 pm (CDT).

Tomorrow, the daylight will last for 10h and 59min.