Weather forecast for 10 days
Big Arm, MT

Weather forecast for the weekend

Saturday, Jun 21.

Showers
5:36 am

9:41 pm
MDT
Showers
59°F / 41°F
  • Wind: 9mph SW
  • Humidity: 66%
  • Precip. probability: 43%
  • Precipitation: 0.39"
  • UV index: 5
On Saturday, June 21, showers will occur throughout the day, with some dry intervals in between.
The chance of rainfall is low, and light precipitation is predicted. The temperature is expected to vary between a maximum of a mild 59°F and a minimum of a cold 41°F.
The forecast high of 59°F aligns more closely with May's typical high of 60.4°F than with June's usual 68°F.
Sunrise will be at 5:36 am and sunset at 9:41 pm; the daylight will last for 16h and 5min.

Sunday, Jun 22.

Showers
5:37 am

9:41 pm
MDT
Showers
61°F / 43°F
  • Wind: 6mph S
  • Humidity: 63%
  • Precip. probability: 49%
  • Precipitation: 0.16"
  • UV index: 3
On Sunday, in Big Arm, expect occasional showers throughout the day, with the rain easing off in the afternoon.
The chance of rainfall is low, and light precipitation is expected. Temperature is predicted to swing from a high of a comfortable 60.8°F to a low of a brisk 42.8°F.
Temperatures are lower than average, more in line with May's norm of 60.4°F than with June's 68°F.
Sunrise will be at 5:37 am and sunset at 9:41 pm; the daylight will last for 16h and 5min.

Frequently asked questions

What is the weather forecast for Big Arm for Saturday?
On Saturday, in Big Arm, showers are expected, with occasional breaks in the rain throughout the day.
Will it rain on Saturday?
With a probability of 43%, light precipitation of 0.39" is expected on Saturday.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 59°F, while the lowest temperature will be 41°F.
What is the weather forecast for Big Arm for Sunday?
On Sunday, showers will occur, with brief dry spells in between.
Will it rain on Sunday in Big Arm?
Light precipitation of 0.16" is anticipated on Sunday. The chance of rainfall is 49%.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 60.8°F, while the minimum temperature will be 42.8°F.
What is the weather forecast for Big Arm for the next ten days?
In Big Arm, a combination of cloudy, mostly clear and rain-filled weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on Friday through Sunday in Big Arm. With light precipitation of 0.39", Saturday will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 59°F and 82.4°F, while the minimum temperature will be between 41°F and 51.8°F.
What will be the warmest and the coldest days?
With a maximum temperature of 82.4°F, Monday through Wednesday will be the warmest days. With a maximum temperature of 59°F, Saturday will be the coldest day.

Long-term weather forecast

MonJun 16.
  • 82°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph E
  • Humidity: 41%
  • UV index: 7
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:36 am 9:40 pm MDT
TueJun 17.
  • 82°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph SSW
  • Humidity: 30%
  • UV index: 7
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:36 am 9:40 pm MDT
WedJun 18.
  • 82°F
  • 52°F
Sunny
Sunny
  • Wind: 14mph SW
  • Humidity: 33%
  • UV index: 8
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:36 am 9:40 pm MDT
ThuJun 19.
  • 81°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph SE
  • Humidity: 32%
  • UV index: 8
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:36 am 9:41 pm MDT
FriJun 20.
  • 66°F
  • 45°F
Cloudy
Cloudy
  • Wind: 9mph S
  • Humidity: 50%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • 5:36 am 9:41 pm MDT
SatJun 21.
  • 59°F
  • 41°F
Showers
Showers
  • Wind: 9mph SW
  • Humidity: 66%
  • UV index: 5
  • Precip. probability: 43%
  • Precipitation: 0.39"
  • 5:36 am 9:41 pm MDT
SunJun 22.
  • 61°F
  • 43°F
Showers
Showers
  • Wind: 6mph S
  • Humidity: 63%
  • UV index: 3
  • Precip. probability: 49%
  • Precipitation: 0.16"
  • 5:37 am 9:41 pm MDT
MonJun 23.
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph S
  • Humidity: 59%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:37 am 9:41 pm MDT
TueJun 24.
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph E
  • Humidity: 48%
  • UV index: 8
  • Precip. probability: 16%
  • Precipitation: 0"
  • 5:37 am 9:41 pm MDT
WedJun 25.
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph ESE
  • Humidity: 49%
  • UV index: 7
  • Precip. probability: 18%
  • Precipitation: 0"
  • 5:38 am 9:41 pm MDT
cloud-filled, clear and rainy weather is predicted.
Rainfall is forecasted for Friday through Sunday.
Temperature fluctuation will be noticeable over the next several days. The temperature is expected to swing from 59°F up to 82.4°F, while nighttime temperatures are expected to vary from 41°F to 51.8°F.
With a maximum temperature of 82.4°F, Monday through Wednesday will be the warmest days in Big Arm; Saturday will be the coldest day, with the highest temperature of 59°F.
Updated: Jun 16, 2025 @ 11:25:58 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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