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As of 11:36 MDT

Weather in Big Arm, MT

43°Current weather

Big Arm, Tuesday, 27 October, 11:36

Overcast. Feels like 41°. High 43°, low 38°.

Pressure29.88 inHg
Wind4 mph S
Humidity62%
Visibility6.2 mi
Dew point31°

10-day forecast for Big Arm, MT: 30° to 47°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

47°
Best day: Thursday, November 5
40° · 0.27 in
Worst day: Wednesday, October 28

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

Wed, 2840° / 33°0.27Snow
MorningLight snow34°feels 29°
AfternoonSnow40°feels 35°
EveningOvercast37°feels 32°
OvernightOvercast38°feels 33°
40 °Snow

Big Arm, Wednesday, 28 October

Snow. High 40°, low 33°.

Pressure30.00 inHg
Wind10.2 mph SW
Humidity83%
Visibility3.7 mi
Dew point34°
Thu, 2944° / 33°0Partly cloudy
MorningOvercast34°feels 34°
AfternoonPartly cloudy42°feels 41°
EveningOvercast36°feels 32°
OvernightPartly cloudy34°feels 29°
44 °Partly cloudy

Big Arm, Thursday, 29 October

Partly cloudy. High 44°, low 33°.

Pressure30.12 inHg
Wind2.5 mph E
Humidity73%
Visibility6.2 mi
Dew point32°
Fri, 3045° / 33°0Overcast
MorningOvercast33°feels 28°
AfternoonPartly cloudy43°feels 43°
EveningOvercast40°feels 40°
OvernightOvercast35°feels 29°
45 °Overcast

Big Arm, Friday, 30 October

Overcast. High 45°, low 33°.

Pressure30.03 inHg
Wind3.6 mph NE
Humidity74%
Visibility4.7 mi
Dew point31°
Sat, 3147° / 37°0.02Light rain
MorningOvercast37°feels 37°
AfternoonLight rain43°feels 43°
EveningLight rain43°feels 43°
OvernightOvercast39°feels 39°
47 °Light rain

Big Arm, Saturday, 31 October

Light rain. High 47°, low 37°.

Pressure30.03 inHg
Wind2.6 mph N
Humidity86%
Visibility—
Dew point38°
Sun, 0143° / 36°0.06Light rain
MorningLight rain39°feels 39°
AfternoonLight rain43°feels 42°
EveningLight rain41°feels 39°
OvernightLight rain38°feels 38°
43 °Light rain

Big Arm, Sunday, 1 November

Light rain. High 43°, low 36°.

Pressure30.03 inHg
Wind4.1 mph S
Humidity89%
Visibility—
Dew point39°
Mon, 0244° / 32°0Clear
MorningClear35°feels 35°
AfternoonClear41°feels 41°
EveningClear38°feels 38°
OvernightClear33°feels 33°
44 °Clear

Big Arm, Monday, 2 November

Clear. High 44°, low 32°.

Pressure30.42 inHg
Wind3.1 mph SW
Humidity68%
Visibility—
Dew point30°
Tue, 0345° / 30°0Partly cloudy
MorningPartly cloudy33°feels 33°
AfternoonPartly cloudy40°feels 40°
EveningPartly cloudy37°feels 37°
OvernightPartly cloudy34°feels 34°
45 °Partly cloudy

Big Arm, Tuesday, 3 November

Partly cloudy. High 45°, low 30°.

Pressure30.39 inHg
Wind2.8 mph E
Humidity62%
Visibility—
Dew point27°
Wed, 0446° / 32°0Overcast
MorningOvercast35°feels 35°
AfternoonOvercast41°feels 41°
EveningOvercast40°feels 40°
OvernightOvercast35°feels 35°
46 °Overcast

Big Arm, Wednesday, 4 November

Overcast. High 46°, low 32°.

Pressure30.12 inHg
Wind2.8 mph SW
Humidity63%
Visibility—
Dew point28°
Thu, 0547° / 36°0Overcast
MorningOvercast38°feels 36°
AfternoonOvercast44°feels 41°
EveningOvercast43°feels 43°
OvernightOvercast39°feels 39°
47 °Overcast

Big Arm, Thursday, 5 November

Overcast. High 47°, low 36°.

Pressure30.12 inHg
Wind4.6 mph S
Humidity58%
Visibility—
Dew point29°

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.