Weather forecast for todayBig Arm, MT
Weather forecast for today
Current condition 10:17 am MDT
- 45°F
- Feels like:45°F
Fair
- Precipitation: 0"
- Wind: 2mphSSW 210°
- Humidity: 67%
- Dewpoint: 34°F
- Pressure: 30.01"Hg
- Visibility: 7mi
- UV index: 1
- details ▼
At the moment, stable weather conditions keep the day fair and comfortable.
The temperature is a chilly 44.6°F. The current temperature is far from the maximum of 66.2°F predicted for today.
The temperature is a chilly 44.6°F. The current temperature is far from the maximum of 66.2°F predicted for today.
Saturday Oct 17, 2026
- 66°F
- 34°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSW 215°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:59 am MDT
- Sunset: 6:45 pm MDT
- details ▼
Today, in Big Arm, a mix of clouds and blue sky is expected.
Temperatures are forecasted to move from a peak of a comfortable 66.2°F to a low of a wintry 33.8°F.
The higher temperature of 66.2°F is more typical of September than October.
Sunrise was at 7:59 am and sunset will be at 6:45 pm; the daylight will last for 10h and 46min.
Temperatures are forecasted to move from a peak of a comfortable 66.2°F to a low of a wintry 33.8°F.
The higher temperature of 66.2°F is more typical of September than October.
Sunrise was at 7:59 am and sunset will be at 6:45 pm; the daylight will last for 10h and 46min.
Hourly overview
Hourly temperatures
Warmest period: 3 pm - 5 pm 64°C.
Coldest hour: 1 am 45°C.
Coldest hour: 1 am 45°C.
Chance of precipitation
Highest chance: 1 am 3%.
Hourly weather forecast
- 11 am
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphS 177°
- Humidity: 58%
- Pressure: 29.97"Hg
- Visibility: 9mi
- UV index: 1
- details ▼
- 12 pm
- 54°F
- Feels like:54°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 187°
- Humidity: 49%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 1 pm
- 59°F
- Feels like:59°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSW 202°
- Humidity: 39%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 61°F
- Feels like:61°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSSW 213°
- Humidity: 38%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 3 pm
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSW 226°
- Humidity: 34%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 13mphSW 232°
- Humidity: 35%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 64°F
- Feels like:64°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphWSW 237°
- Humidity: 36%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphSW 235°
- Humidity: 39%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:45 pm
- 7 pm
- 59°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphWSW 246°
- Humidity: 47%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 54°F
- Feels like:52°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphWSW 250°
- Humidity: 58%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphWSW 248°
- Humidity: 66%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:46°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphWSW 255°
- Humidity: 69%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 46°F
- Feels like:45°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphWSW 252°
- Humidity: 72%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Big Arm, primarily overcast and occasionally clear weather is expected.
The temperature will be between a minimum of 46.4°F and a maximum of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature today will feel more resembling September's average high of 67.6°F than the usual for October. Today, the lowest temperature will be consistent with October's usual minimum.
The temperature will be between a minimum of 46.4°F and a maximum of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature today will feel more resembling September's average high of 67.6°F than the usual for October. Today, the lowest temperature will be consistent with October's usual minimum.
Updated: Oct 17, 2026 @ 16:17:23 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
At 10:17 am MDT, the temperature is 44.6°F.
Today, expect a mix of sun and clouds throughout the day.
Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 33.8°F.
The highest temperature will be uncommonly higher than the average maximum of 51.1°F in October. The lowest temperature will be in line with the average low of 33.1°F.
The highest temperature will be uncommonly higher than the average maximum of 51.1°F in October. The lowest temperature will be in line with the average low of 33.1°F.
On Saturday, in Big Arm, sunrise was at 7:59 am and sunset will be at 6:45 pm (MDT).
In Big Arm, today, there will be 10h and 46min of daylight.
Big Arm, Montana, USA
- en: Big Arm, Montana, USA
- es: Big Arm, Montana, EE.UU.
- hr: Big Arm, Montana, SAD
- mk: Big Arm, Montana, SAD
- sr: Big Arm, Montana, SAD
- zh: 大阿姆, 蒙大拿, 美国
- Latitude: 47.797997°
- Longitude: -114.294845°
- Elevation: 2946 ft
- Current time: 10:17am MDT
- Sunrise: 7:59 am MDT
- Sunset: 6:45 pm MDT
- Timezone: America/Denver
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