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As of 06:37 MDT

Weather in Big Arm, MT

36°Current weather

Big Arm, Sunday, 25 October, 06:37

Overcast. Feels like 29°. High 52°, low 33°.

Pressure30.21 inHg
Wind7.8 mph N
Humidity86%
Visibility6.2 mi
Dew point32°

10-day forecast for Big Arm, MT: 30° to 52°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

52°
Best day: Sunday, October 25
42° · 0.35 in
Worst day: Tuesday, October 27

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

Mon, 2650° / 32°0Overcast
MorningOvercast35°feels 32°
AfternoonOvercast49°feels 49°
EveningOvercast42°feels 42°
OvernightOvercast37°feels 32°
50 °Overcast

Big Arm, Monday, 26 October

Overcast. High 50°, low 32°.

Pressure30.06 inHg
Wind2.5 mph NE
Humidity65%
Visibility6.2 mi
Dew point31°
Tue, 2742° / 36°0.35Snow
MorningSnow36°feels 32°
AfternoonLight rain41°feels 36°
EveningOvercast38°feels 33°
OvernightLight rain39°feels 37°
42 °Snow

Big Arm, Tuesday, 27 October

Snow. High 42°, low 36°.

Pressure29.94 inHg
Wind8.4 mph SW
Humidity93%
Visibility6.2 mi
Dew point37°
Wed, 2842° / 35°0.12Light rain
MorningLight snow37°feels 30°
AfternoonLight rain41°feels 35°
EveningClear36°feels 32°
OvernightOvercast37°feels 32°
42 °Light rain

Big Arm, Wednesday, 28 October

Light rain. High 42°, low 35°.

Pressure29.97 inHg
Wind7.7 mph S
Humidity92%
Visibility6.2 mi
Dew point37°
Thu, 2943° / 33°0Partly cloudy
MorningPartly cloudy36°feels 35°
AfternoonPartly cloudy40°feels 38°
EveningPartly cloudy39°feels 37°
OvernightPartly cloudy33°feels 33°
43 °Partly cloudy

Big Arm, Thursday, 29 October

Partly cloudy. High 43°, low 33°.

Pressure30.15 inHg
Wind5 mph N
Humidity73%
Visibility—
Dew point31°
Fri, 3045° / 33°0Overcast
MorningOvercast35°feels 30°
AfternoonOvercast41°feels 38°
EveningOvercast43°feels 43°
OvernightOvercast39°feels 38°
45 °Overcast

Big Arm, Friday, 30 October

Overcast. High 45°, low 33°.

Pressure30.03 inHg
Wind7.8 mph N
Humidity73%
Visibility—
Dew point31°
Sat, 3151° / 35°0Overcast
MorningOvercast37°feels 34°
AfternoonOvercast44°feels 40°
EveningOvercast45°feels 41°
OvernightOvercast39°feels 36°
51 °Overcast

Big Arm, Saturday, 31 October

Overcast. High 51°, low 35°.

Pressure30.03 inHg
Wind8.4 mph SW
Humidity64%
Visibility—
Dew point31°
Sun, 0145° / 32°0Overcast
MorningOvercast35°feels 32°
AfternoonOvercast41°feels 41°
EveningOvercast38°feels 36°
OvernightOvercast35°feels 31°
45 °Overcast

Big Arm, Sunday, 1 November

Overcast. High 45°, low 32°.

Pressure29.83 inHg
Wind5.5 mph SW
Humidity60%
Visibility—
Dew point28°
Mon, 0245° / 32°0Overcast
MorningOvercast34°feels 33°
AfternoonOvercast40°feels 37°
EveningOvercast40°feels 37°
OvernightOvercast34°feels 31°
45 °Overcast

Big Arm, Monday, 2 November

Overcast. High 45°, low 32°.

Pressure30.18 inHg
Wind4.6 mph SW
Humidity63%
Visibility—
Dew point27°
Tue, 0344° / 30°0Overcast
MorningOvercast33°feels 33°
AfternoonOvercast40°feels 40°
EveningOvercast39°feels 38°
OvernightOvercast35°feels 32°
44 °Overcast

Big Arm, Tuesday, 3 November

Overcast. High 44°, low 30°.

Pressure30.12 inHg
Wind5.1 mph SW
Humidity53%
Visibility—
Dew point23°

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.