Weather forecast for 10 daysSaint Peter, IL

Weather forecast for the weekend

Saturday Oct 31, 2026

  • 70°F
  • 57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphE 97°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 5:56 pm CDT
  • ▼
On Saturday, October 31, the weather will feel mostly overcast.
The maximum forecasted temperature is a pleasant 69.8°F, while the minimum temperature will be a mild 57.2°F.
Today's top temperature will be relatively higher than October's standard maximum of 65.1°F.
Sunrise was at 7:21 am and sunset will be at 5:56 pm; the daylight will last for 10h and 35min.

Sunday Nov 1, 2026

  • 63°F
  • 55°F
AM Showers
AM Showers
  • Precip. probability: 56%
  • Precipitation: 0.04"
  • Wind: 11mphSE 132°
  • Humidity: 85%
  • UV index: 2
  • Sunrise: 6:22 am CST
  • Sunset: 4:55 pm CST
  • ▼
Tomorrow, on Sunday, expect a damp start with early morning showers.
Minimal precipitation is forecasted. A subtle difference will be noticeable between the daytime peak temperature of an enjoyable 62.6°F and the nighttime low of a refreshing 55.4°F.
October's standard high of 65.1°F is expected to be reached during the day.
Sunrise will be at 6:22 am and sunset at 4:55 pm; tomorrow's daylight will last for 10h and 32min.

10-day overview

Daily temperatures

Warmest day: Tuesday 72°C.
Coldest period: Friday - Saturday 59°C.

Chance of precipitation

Highest chance: Tuesday 70%.

Long-term weather forecast

  • Saturday
  • Oct 31, 2026
  • 70°F
  • 57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphE 97°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 5:56 pm CDT
  • ▼
  • Sunday
  • Nov 1, 2026
  • 63°F
  • 55°F
AM Showers
AM Showers
  • Precip. probability: 56%
  • Precipitation: 0.04"
  • Wind: 11mphSE 132°
  • Humidity: 85%
  • UV index: 2
  • Sunrise: 6:22 am CST
  • Sunset: 4:55 pm CST
  • ▼
  • Monday
  • Nov 2, 2026
  • 68°F
  • 61°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphSSE 158°
  • Humidity: 83%
  • UV index: 1
  • Sunrise: 6:23 am CST
  • Sunset: 4:54 pm CST
  • ▼
  • Tuesday
  • Nov 3, 2026
  • 72°F
  • 55°F
Rain
Rain
  • Precip. probability: 70%
  • Precipitation: 0.71"
  • Wind: 17mphS 170°
  • Humidity: 76%
  • UV index: 2
  • Sunrise: 6:25 am CST
  • Sunset: 4:52 pm CST
  • ▼
  • Wednesday
  • Nov 4, 2026
  • 61°F
  • 50°F
Rain
Rain
  • Precip. probability: 68%
  • Precipitation: 0.28"
  • Wind: 10mphWSW 241°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 6:26 am CST
  • Sunset: 4:51 pm CST
  • ▼
  • Thursday
  • Nov 5, 2026
  • 64°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphW 274°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 6:27 am CST
  • Sunset: 4:50 pm CST
  • ▼
  • Friday
  • Nov 6, 2026
  • 59°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphNNW 335°
  • Humidity: 71%
  • UV index: 2
  • Sunrise: 6:28 am CST
  • Sunset: 4:49 pm CST
  • ▼
  • Saturday
  • Nov 7, 2026
  • 59°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 6mphNNW 338°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 6:29 am CST
  • Sunset: 4:48 pm CST
  • ▼
  • Sunday
  • Nov 8, 2026
  • 63°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 6mphNNW 348°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 6:30 am CST
  • Sunset: 4:47 pm CST
  • ▼
  • Monday
  • Nov 9, 2026
  • 61°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphNNW 346°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 6:31 am CST
  • Sunset: 4:46 pm CST
  • ▼
Throughout the next ten days, a combination of overcast and damp weather is anticipated.
Rain is expected on Sunday, Tuesday and Wednesday.
Temperature fluctuation will be noticeable throughout the forecast window. The temperature is expected to swing from 59°F up to 71.6°F, while there will be also a marked difference in overnight low temperatures, as temperatures overnight will fluctuate from 39.2°F up to 60.8°F.
The warmest day will be Tuesday, with a maximum of 71.6°F; the coldest days will be Friday and next Saturday, with a maximum of 59°F.
Updated: Oct 31, 2026 @ 16:13:11 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Saint Peter, expect a cloud-dominated atmosphere throughout.

Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 57.2°F.
The maximum temperature today will be slightly warmer than the average highest temperature in October. The lowest temperature today will be also a few degrees higher than the average low temperature.

On Saturday, in Saint Peter, sunrise was at 7:21 am and sunset will be at 5:56 pm (CDT).

Today, the daylight will last for 10h and 35min.

On Sunday, in Saint Peter, passing rain showers could briefly interrupt dry periods in the morning.

There is a high possibility of rainfall in Saint Peter, Illinois, but with minimal precipitation.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 55.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be a couple of degrees higher than the average low temperature.

On Sunday, in Saint Peter, sunrise will be at 6:22 am and sunset at 4:55 pm (CST).

In Saint Peter, the length of the day tomorrow will be 10h and 32min.