Weather forecast for todaySaint Peter, IL

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 3:03 am CDT

  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 1mphWNW 300°
  • Humidity: 90%
  • Dewpoint: 36°F
  • Pressure: 30.49"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
In Saint Peter, currently, weather conditions are clear, with excellent visibility.
The temperature is a cold 39.2°F. The current temperature is near the lowest predicted 37.4°F for today.

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphSSE 152°
  • Humidity: 60%
  • UV index: 5
  • Sunrise: 7:08 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Today, expect bright skies and plenty of sunshine.
The temperature is forecasted to vary significantly from a high of a comfortable 66.2°F to a low of an icy 37.4°F.
Today's high is expected to coincide with the typical October maximum of 65.1°F.
Sunrise will be at 7:08 am and sunset at 6:12 pm; the daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 4 pm 64°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 2%.

Hourly weather forecast

  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSE 137°
  • Humidity: 89%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSE 136°
  • Humidity: 89%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:08 am
  • 8 am
  • 41°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSE 146°
  • Humidity: 84%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSE 162°
  • Humidity: 57%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSE 166°
  • Humidity: 42%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 162°
  • Humidity: 35%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 154°
  • Humidity: 32%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 144°
  • Humidity: 42%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 130°
  • Humidity: 66%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSE 133°
  • Humidity: 76%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Saint Peter, a cloudless sky and mainly sunshiny weather are expected.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted high will be close to the typical October maximum of 65.1°F. Today, expect the temperature to be more consistent with the typical minimum for November than for October.
Updated: Oct 18, 2026 @ 08:03:46 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (3:03 am CDT) it is 39.2°F in Saint Peter.

Today, in Saint Peter, clear skies and sunshine are anticipated.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
The maximum temperature will be in line with the average highest temperature of 65.1°F in October. Today, the lowest temperature will be significantly 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).

Today, the daylight will last for 11h and 5min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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Saint Peter, Illinois, USA

  • en: Saint Peter, Illinois, USA
  • es: St. Peter, Illinois, EE.UU.
  • hr: Sent Piter, Ilinois, SAD
  • mk: Sent Piter, Ilinois, SAD
  • sr: Sent Piter, Ilinois, SAD
  • zh: 圣彼得, 伊利诺伊, 美国
  • Latitude: 38.868102°
  • Longitude: -88.853946°
  • Elevation: 597 ft
  • Current time: 3:03am CDT
  • Sunrise: 7:08 am CDT
  • Sunset: 6:12 pm CDT
  • Timezone: America/Chicago

Nearby Saint Peter, Illinois, USA

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