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As of 05:39 MDT

Weather in Big Arm, MT

39°Current weather

Big Arm, Wednesday, 21 October, 05:39

Overcast. Feels like 39°. High 63°, low 39°.

Pressure30.06 inHg
Wind1.1 mph NE
Humidity92%
Visibility1.1 mi
Dew point37°

10-day forecast for Big Arm, MT: 20° to 64°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

64°
Best day: Thursday, October 22
52° · 0.37 in
Worst day: Friday, October 23

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

Thu, 2264° / 41°0Light rain
MorningPartly cloudy41°feels 41°
AfternoonPartly cloudy63°feels 62°
EveningOvercast55°feels 53°
OvernightMostly clear45°feels 45°
64 °Light rain

Big Arm, Thursday, 22 October

Light rain. High 64°, low 41°.

Pressure29.88 inHg
Wind2.1 mph E
Humidity59%
Visibility4.2 mi
Dew point44°
Fri, 2352° / 41°0.37Rain
MorningLight rain49°feels 49°
AfternoonOvercast48°feels 43°
EveningMostly clear44°feels 41°
OvernightLight rain51°feels 50°
52 °Rain

Big Arm, Friday, 23 October

Rain. High 52°, low 41°.

Pressure29.91 inHg
Wind9.6 mph N
Humidity90%
Visibility2.6 mi
Dew point44°
Sat, 2450° / 42°0Partly cloudy
MorningOvercast41°feels 39°
AfternoonMostly clear49°feels 49°
EveningOvercast46°feels 46°
OvernightOvercast42°feels 39°
50 °Partly cloudy

Big Arm, Saturday, 24 October

Partly cloudy. High 50°, low 42°.

Pressure30.24 inHg
Wind4.5 mph SE
Humidity59%
Visibility6.2 mi
Dew point32°
Sun, 2551° / 39°0Partly cloudy
MorningPartly cloudy41°feels 38°
AfternoonPartly cloudy48°feels 46°
EveningPartly cloudy48°feels 47°
OvernightOvercast43°feels 42°
51 °Partly cloudy

Big Arm, Sunday, 25 October

Partly cloudy. High 51°, low 39°.

Pressure30.24 inHg
Wind8.5 mph N
Humidity57%
Visibility—
Dew point32°
Mon, 2649° / 35°0.06Snow
MorningSnow38°feels 35°
AfternoonSnow44°feels 44°
EveningSnow42°feels 42°
OvernightSnow35°feels 34°
49 °Snow

Big Arm, Monday, 26 October

Snow. High 49°, low 35°.

Pressure30.18 inHg
Wind7.7 mph N
Humidity67%
Visibility—
Dew point33°
Tue, 2733° / 27°0.16Light snow
MorningLight snow29°feels 23°
AfternoonLight snow31°feels 26°
EveningLight snow29°feels 26°
OvernightLight snow27°feels 26°
33 °Light snow

Big Arm, Tuesday, 27 October

Light snow. High 33°, low 27°.

Pressure30.39 inHg
Wind5.2 mph S
Humidity94%
Visibility—
Dew point29°
Wed, 2832° / 20°0Overcast
MorningOvercast26°feels 26°
AfternoonOvercast28°feels 28°
EveningOvercast28°feels 28°
OvernightOvercast23°feels 23°
32 °Overcast

Big Arm, Wednesday, 28 October

Overcast. High 32°, low 20°.

Pressure30.59 inHg
Wind2.7 mph S
Humidity94%
Visibility—
Dew point26°
Thu, 2934° / 23°0Overcast
MorningOvercast29°feels 29°
AfternoonOvercast33°feels 33°
EveningOvercast34°feels 34°
OvernightOvercast30°feels 30°
34 °Overcast

Big Arm, Thursday, 29 October

Overcast. High 34°, low 23°.

Pressure30.33 inHg
Wind2.7 mph W
Humidity93%
Visibility—
Dew point30°
Fri, 3036° / 27°0Overcast
MorningOvercast29°feels 29°
AfternoonOvercast34°feels 34°
EveningOvercast34°feels 34°
OvernightOvercast31°feels 31°
36 °Overcast

Big Arm, Friday, 30 October

Overcast. High 36°, low 27°.

Pressure30.03 inHg
Wind2.8 mph SW
Humidity97%
Visibility—
Dew point32°

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.