Weather forecast for todaySaint Elmo, IL

Weather forecast for today

Current condition 12:16 am CDT

  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 1mphW 270°
  • Humidity: 92%
  • Dewpoint: 37°F
  • Pressure: 30.49"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Currently, in Saint Elmo, the atmosphere is fresh and open, with clear skies above.
The temperature is an icy 39.2°F. The current temperature is near the lowest expected 37.4°F for today.

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphSSE 160°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 7:08 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
On Sunday, in Saint Elmo, conditions remain stable and sunny, with little cloud presence.
A stark contrast will be evident between the daytime peak temperature of a comfortable 66.2°F and the nighttime low of an icy 37.4°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; the daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 4 pm 64°C.
Coldest hour: 7 am 37°C.

Chance of precipitation

Highest chance: 2%.

Hourly weather forecast

  • 2 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphSE 143°
  • Humidity: 89%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSE 139°
  • Humidity: 84%
  • 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 141°
  • Humidity: 86%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:08 am
  • 8 am
  • 39°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphSSE 150°
  • 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 165°
  • Humidity: 57%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphS 171°
  • Humidity: 41%
  • 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 165°
  • Humidity: 34%
  • 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 160°
  • 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: 4mphSSE 146°
  • Humidity: 42%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 8 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 132°
  • Humidity: 68%
  • 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 135°
  • Humidity: 74%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Saint Elmo, clear skies and sunny weather are expected.
The temperature will vary between the highest temperature of 64.4°F and the lowest temperature of 37.4°F. The warmest part of the day will be at 3 pm and 4 pm.
Today, expect conditions similar to October's usual high temperature. The expected low will be more resembling what’s common in November than the current October average of 48.4°F.
Updated: Oct 18, 2026 @ 05:16:34 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (12:16 am CDT) it is 39.2°F in Saint Elmo.

On Sunday, in Saint Elmo, the outlook remains bright and sunny.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 65.1°F in October. The lowest temperature today will be noticeably lower than the average low of 48.4°F.

On Sunday, in Saint Elmo, sunrise will be at 7:08 am and sunset at 6:12 pm (CDT).

Today, the daylight will last for 11h and 5min.