Weather forecast for todayEureka, MT

Weather forecast for today

Current condition 12:50 am MDT

  • 34°F
  • Feels like:
    34°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 1mphENE 60°
  • Humidity: 100%
  • Dewpoint: 34°F
  • Pressure: 30.11"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Eureka, at the moment, the sky is a wide-open expanse of clear blue.
The temperature is a cold 33.8°F. The current temperature is far from the maximum of 66.2°F predicted for today.

Wednesday Oct 21, 2026

  • 66°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphESE 104°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 8:10 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
On Wednesday, October 21, sunshine will dominate, with only occasional cloud cover.
The highest temperature will be a comfortable 66.2°F, while the lowest anticipated temperature is an icy 41°F.
The forecast high of 66.2°F aligns more closely with September's typical high of 65.8°F than with October's usual 49.1°F.
Sunrise will be at 8:10 am and sunset at 6:39 pm; the daylight will last for 10h and 29min.

Hourly overview

Hourly temperatures

Warmest hour: 4 pm 66°C.
Coldest hour: 1 am 36°C.

Chance of precipitation

Highest chance: 1%.

Hourly weather forecast

  • 2 am
  • 36°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 89°
  • Humidity: 93%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphESE 115°
  • Humidity: 79%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphE 80°
  • Humidity: 80%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 36°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphESE 107°
  • Humidity: 83%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 8:10 am
  • 10 am
  • 45°F
  • Feels like:
    45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphENE 56°
  • Humidity: 74%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNE 48°
  • Humidity: 54%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSE 133°
  • Humidity: 43%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 140°
  • Humidity: 37%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSSE 161°
  • Humidity: 43%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:39 pm
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 136°
  • Humidity: 55%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphESE 121°
  • Humidity: 64%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Eureka, a combination of sun-filled and cloud-filled weather is forecasted.
The temperature will be between a minimum of 35.6°F and a maximum of 66.2°F. The warmest part of the day will be at 4 pm and 5 pm.
The highest temperature is more consistent with September's average maximum of 65.8°F than October's usual of 49.1°F. The expected low will be also more resembling what’s typical in September than in October.
Updated: Oct 21, 2026 @ 06:50:20 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (12:50 am MDT) is 33.8°F.

On Wednesday, a crisp, sunny atmosphere is likely.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 41°F.
The maximum temperature will be noticeably higher than the average highest temperature of 49.1°F in October. The lowest temperature will be also noticeably higher than the average low of 30.6°F.

On Wednesday, in Eureka, sunrise will be at 8:10 am and sunset at 6:39 pm (MDT).

Today, the daylight will last for 10h and 29min.