Weather forecast for 10 days
Big Arm, MT

Weather forecast for the weekend

Saturday, May 3.

Sunny
6:13 am

8:54 pm
MDT
Sunny
77°F / 50°F
  • Wind: 8mph ESE
  • Humidity: 40%
  • Precip. probability: 2%
  • Precipitation: 0"
  • UV index: 6
On Saturday, May 3, bright and sunny weather is expected.
Temperatures are set to span a considerable range, with a high of a warm 77°F and a low of a crisp 50°F.
Conditions will lean warmer, as the high of 77°F is more representative of June's climate.
Sunrise will be at 6:13 am and sunset at 8:54 pm; the daylight will last for 14h and 41min.

Sunday, May 4.

Showers
6:11 am

8:55 pm
MDT
Showers
50°F / 39°F
  • Wind: 8mph WSW
  • Humidity: 74%
  • Precip. probability: 48%
  • Precipitation: 0.35"
  • UV index: 3
On Sunday, May 4, expect showers with brief dry periods, especially during the afternoon.
With a low probability, light precipitation is predicted. Expected temperature values will span from a cool 50°F down to an icy 39.2°F.
The anticipated high is colder and better reflects April's normal temperature profile than that of May.
Sunrise will be at 6:11 am and sunset at 8:55 pm; the daylight will last for 14h and 44min.

Frequently asked questions

What is the weather forecast for Big Arm for Saturday?
On Saturday, the outlook remains bright and sunny.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 77°F, while the minimum temperature will be 50°F.
What is the weather forecast for Big Arm for Sunday?
On Sunday, in Big Arm, showers are expected at times, with breaks in the rain later in the day.
Will it rain on Sunday?
Light precipitation of 0.35" is anticipated on Sunday. The likelihood of rainfall is 48%.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 50°F, while the lowest temperature will be 39.2°F.
What is the weather forecast for Big Arm for the next ten days?
In Big Arm, a combination of sun-filled, gloomy and rain-soaked weather is forecasted for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted only for Sunday. With a probability of 48%, light precipitation of 0.35" is expected.
How warm will it be in the next ten days?
The maximum temperature will range between 50°F and 77°F, as the minimum temperature will be between 37.4°F and 50°F.
What will be the warmest and the coldest days?
With a maximum temperature of 77°F, Friday, Saturday, Wednesday and next Saturday will be the warmest days. With a maximum temperature of 50°F, Sunday will be the coldest day.

Long-term weather forecast

ThuMay 1.
  • min.
  • 41°F
Mostly Clear
Mostly Clear
  • Wind: 3mph NW
  • Humidity: 61%
  • UV index: 0
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:16 am 8:51 pm MDT
FriMay 2.
  • 77°F
  • 45°F
Sunny
Sunny
  • Wind: 6mph SE
  • Humidity: 40%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:15 am 8:53 pm MDT
SatMay 3.
  • 77°F
  • 50°F
Sunny
Sunny
  • Wind: 8mph ESE
  • Humidity: 40%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:13 am 8:54 pm MDT
SunMay 4.
  • 50°F
  • 39°F
Showers
Showers
  • Wind: 8mph WSW
  • Humidity: 74%
  • UV index: 3
  • Precip. probability: 48%
  • Precipitation: 0.35"
  • 6:11 am 8:55 pm MDT
MonMay 5.
  • 59°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph NNE
  • Humidity: 58%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:10 am 8:57 pm MDT
TueMay 6.
  • 68°F
  • 43°F
Sunny
Sunny
  • Wind: 7mph ENE
  • Humidity: 42%
  • UV index: 6
  • Precip. probability: 4%
  • Precipitation: 0"
  • 6:08 am 8:58 pm MDT
WedMay 7.
  • 77°F
  • 48°F
Sunny
Sunny
  • Wind: 9mph SSE
  • Humidity: 43%
  • UV index: 6
  • Precip. probability: 6%
  • Precipitation: 0"
  • 6:07 am 9:00 pm MDT
ThuMay 8.
  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SW
  • Humidity: 42%
  • UV index: 6
  • Precip. probability: 22%
  • Precipitation: 0"
  • 6:05 am 9:01 pm MDT
FriMay 9.
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph SSE
  • Humidity: 37%
  • UV index: 6
  • Precip. probability: 3%
  • Precipitation: 0"
  • 6:04 am 9:02 pm MDT
SatMay 10.
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph ENE
  • Humidity: 37%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:03 am 9:04 pm MDT
Over the next ten days, a mix of mostly clear, cloudy and damp weather is expected.
With a probability of 48%, rainfall is forecasted only for Sunday. The precipitation will be light at 0.35".
Noticeable swings in temperature are expected throughout the forecast window. Forecast highs will fluctuate between 50°F and 77°F, while there will be also a marked difference in overnight low temperatures, as nighttime lows are forecast to fall between 37.4°F and 50°F.
With a maximum temperature of 77°F, Friday, Saturday, Wednesday and next Saturday will be the warmest days; Sunday will be the coldest day, with the highest temperature of 50°F.
Updated: May 2, 2025 @ 03:22:18 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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