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As of 13:04 MDT

Weather in Big Arm, MT

53°Current weather

Big Arm, Thursday, 22 October, 13:04

Mostly clear. Feels like 51°. High 61°, low 37°.

Pressure29.88 inHg
Wind2 mph E
Humidity61%
Visibility6.2 mi
Dew point41°

10-day forecast for Big Arm, MT: 31° to 61°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

61°
Best day: Thursday, October 22
48° · 0.26 in
Worst day: Friday, October 23

Tap any day below to see morning, afternoon, evening and overnight.

Fri, 2348° / 32°0.26Rain
MorningLight rain42°feels 42°
AfternoonOvercast46°feels 41°
EveningPartly cloudy37°feels 37°
OvernightLight rain43°feels 43°
48 °Rain

Big Arm, Friday, 23 October

Rain. High 48°, low 32°.

Pressure29.88 inHg
Wind8.3 mph N
Humidity92%
Visibility3.4 mi
Dew point45°
Sat, 2450° / 32°0.03Light rain
MorningMostly clear39°feels 39°
AfternoonClear48°feels 45°
EveningOvercast44°feels 44°
OvernightOvercast43°feels 43°
50 °Light rain

Big Arm, Saturday, 24 October

Light rain. High 50°, low 32°.

Pressure30.27 inHg
Wind4.5 mph SW
Humidity73%
Visibility6.2 mi
Dew point36°
Sun, 2548° / 35°0Partly cloudy
MorningPartly cloudy35°feels 29°
AfternoonPartly cloudy46°feels 43°
EveningOvercast41°feels 36°
OvernightPartly cloudy41°feels 39°
48 °Partly cloudy

Big Arm, Sunday, 25 October

Partly cloudy. High 48°, low 35°.

Pressure30.24 inHg
Wind8.4 mph NE
Humidity67%
Visibility6.2 mi
Dew point30°
Mon, 2649° / 35°0Overcast
MorningOvercast36°feels 32°
AfternoonOvercast45°feels 45°
EveningOvercast46°feels 46°
OvernightOvercast36°feels 30°
49 °Overcast

Big Arm, Monday, 26 October

Overcast. High 49°, low 35°.

Pressure30.18 inHg
Wind2.9 mph NE
Humidity63%
Visibility6.2 mi
Dew point32°
Tue, 2742° / 38°0.1Light rain
MorningLight rain39°feels 38°
AfternoonLight rain40°feels 38°
EveningLight rain40°feels 38°
OvernightLight rain40°feels 40°
42 °Light rain

Big Arm, Tuesday, 27 October

Light rain. High 42°, low 38°.

Pressure30.03 inHg
Wind4.4 mph N
Humidity92%
Visibility—
Dew point38°
Wed, 2847° / 38°0.24Rain
MorningRain41°feels 37°
AfternoonRain43°feels 40°
EveningRain42°feels 42°
OvernightRain39°feels 38°
47 °Rain

Big Arm, Wednesday, 28 October

Rain. High 47°, low 38°.

Pressure30.39 inHg
Wind8.9 mph NE
Humidity53%
Visibility—
Dew point27°
Thu, 2947° / 31°0Clear
MorningClear34°feels 33°
AfternoonClear41°feels 39°
EveningClear40°feels 40°
OvernightClear36°feels 36°
47 °Clear

Big Arm, Thursday, 29 October

Clear. High 47°, low 31°.

Pressure30.18 inHg
Wind4 mph S
Humidity52%
Visibility—
Dew point24°
Fri, 3053° / 35°0Overcast
MorningOvercast38°feels 37°
AfternoonOvercast46°feels 42°
EveningOvercast48°feels 44°
OvernightOvercast41°feels 39°
53 °Overcast

Big Arm, Friday, 30 October

Overcast. High 53°, low 35°.

Pressure29.88 inHg
Wind9.1 mph SW
Humidity59%
Visibility—
Dew point30°
Sat, 3148° / 34°0Clear
MorningClear37°feels 33°
AfternoonClear45°feels 41°
EveningClear43°feels 40°
OvernightClear40°feels 38°
48 °Clear

Big Arm, Saturday, 31 October

Clear. High 48°, low 34°.

Pressure29.94 inHg
Wind7 mph SW
Humidity62%
Visibility—
Dew point31°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Big Arm, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.