Weather forecast for 10 daysSaint Peter, IL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphSSE 157°
- Humidity: 49%
- UV index: 5
- Sunrise: 7:08 am CDT
- Sunset: 6:12 pm CDT
- details ▼
On Sunday, October 18, the forecast calls for abundant sunshine.
Temperatures will show considerable variation, extending from a high of a comfortable 66.2°F to a low of an icy 39.2°F.
This anticipated maximum temperature is expected to mirror October's typical high of 65.1°F.
Sunrise will be at 7:08 am and sunset at 6:12 pm; tomorrow's daylight will last for 11h and 5min.
Temperatures will show considerable variation, extending from a high of a comfortable 66.2°F to a low of an icy 39.2°F.
This anticipated maximum temperature is expected to mirror October's typical high of 65.1°F.
Sunrise will be at 7:08 am and sunset at 6:12 pm; tomorrow's daylight will last for 11h and 5min.
10-day overview
Daily temperatures
Warmest day: Sunday 25.10. 81°C.
Coldest day: tomorrow 66°C.
Coldest day: tomorrow 66°C.
Chance of precipitation
Highest chance: 5%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 37°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSE 131°
- Humidity: 85%
- UV index: 0
- Sunrise: 7:07 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphSSE 157°
- Humidity: 49%
- UV index: 5
- Sunrise: 7:08 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 43°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSSE 151°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:11 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 43°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 3mphENE 76°
- Humidity: 46%
- UV index: 4
- Sunrise: 7:10 am CDT
- Sunset: 6:10 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 77°F
- 43°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSE 139°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:11 am CDT
- Sunset: 6:08 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphENE 75°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:12 am CDT
- Sunset: 6:07 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 46°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphESE 108°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:13 am CDT
- Sunset: 6:06 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 79°F
- 48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphSE 137°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:14 am CDT
- Sunset: 6:04 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 50°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphSSW 200°
- Humidity: 45%
- UV index: 4
- Sunrise: 7:15 am CDT
- Sunset: 6:03 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 77°F
- 50°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphS 179°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:16 am CDT
- Sunset: 6:02 pm CDT
- details ▼
It is expected that a combination of sunny and overcast weather is forecasted.
Rainfall is not anticipated in Saint Peter in the upcoming period.
Substantial differences in temperature are forecasted in the coming days. Forecast highs will fluctuate between 66.2°F and 80.6°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 37.4°F to 50°F.
The warmest day will be next Sunday, with a maximum of 80.6°F; Sunday will be the coldest day, with the highest temperature of 66.2°F.
Rainfall is not anticipated in Saint Peter in the upcoming period.
Substantial differences in temperature are forecasted in the coming days. Forecast highs will fluctuate between 66.2°F and 80.6°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 37.4°F to 50°F.
The warmest day will be next Sunday, with a maximum of 80.6°F; Sunday will be the coldest day, with the highest temperature of 66.2°F.
Updated: Oct 18, 2026 @ 03:20:09 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
On Sunday, in Saint Peter, sunny conditions are expected to continue.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be noticeably lower than the average low of 48.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be noticeably lower than the average low of 48.4°F.
On Sunday, in Saint Peter, sunrise will be at 7:08 am and sunset at 6:12 pm (CDT).
Tomorrow, the daylight will last for 11h and 5min.
