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As of 04:26 MST

Weather in Big Arm, MT

37°Current weather

Big Arm, Thursday, 12 November, 04:26

Overcast. Feels like 37°. High 57°, low 37°.

Pressure30.09 inHg
Wind0.4 mph S
Humidity48%
Visibility1.2 mi
Dew point24°

10-day forecast for Big Arm, MT: 19° to 57°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

57°
Best day: Thursday, November 12
38° · 0.49 in
Worst day: Thursday, November 19

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

Fri, 1355° / 41°0Overcast
MorningOvercast41°feels 41°
AfternoonOvercast54°feels 52°
EveningPartly cloudy48°feels 48°
OvernightOvercast44°feels 44°
55 °Overcast

Big Arm, Friday, 13 November

Overcast. High 55°, low 41°.

Pressure29.56 inHg
Wind1.5 mph E
Humidity49%
Visibility—
Dew point34°
Sat, 1446° / 39°0.01Light rain
MorningOvercast41°feels 41°
AfternoonOvercast44°feels 42°
EveningMostly clear40°feels 40°
OvernightOvercast45°feels 45°
46 °Light rain

Big Arm, Saturday, 14 November

Light rain. High 46°, low 39°.

Pressure29.83 inHg
Wind2.8 mph S
Humidity87%
Visibility6.2 mi
Dew point38°
Sun, 1549° / 37°0Clear
MorningClear37°feels 37°
AfternoonOvercast49°feels 47°
EveningOvercast44°feels 44°
OvernightPartly cloudy39°feels 39°
49 °Clear

Big Arm, Sunday, 15 November

Clear. High 49°, low 37°.

Pressure29.94 inHg
Wind3.8 mph SW
Humidity61%
Visibility6.2 mi
Dew point33°
Mon, 1643° / 33°0.04Light rain
MorningLight rain42°feels 41°
AfternoonLight rain41°feels 38°
EveningLight rain38°feels 35°
OvernightOvercast43°feels 43°
43 °Light rain

Big Arm, Monday, 16 November

Light rain. High 43°, low 33°.

Pressure30.03 inHg
Wind4.9 mph S
Humidity95%
Visibility—
Dew point40°
Tue, 1740° / 31°0Overcast
MorningOvercast33°feels 33°
AfternoonOvercast36°feels 36°
EveningOvercast37°feels 34°
OvernightOvercast36°feels 36°
40 °Overcast

Big Arm, Tuesday, 17 November

Overcast. High 40°, low 31°.

Pressure30.24 inHg
Wind4.9 mph NE
Humidity87%
Visibility—
Dew point32°
Wed, 1839° / 36°0.01Light snow
MorningLight snow37°feels 37°
AfternoonLight snow38°feels 38°
EveningLight snow38°feels 38°
OvernightLight snow37°feels 37°
39 °Light snow

Big Arm, Wednesday, 18 November

Light snow. High 39°, low 36°.

Pressure29.91 inHg
Wind2.9 mph NW
Humidity82%
Visibility—
Dew point33°
Thu, 1938° / 35°0.49Snow
MorningSnow37°feels 36°
AfternoonSnow38°feels 36°
EveningSnow36°feels 36°
OvernightSnow35°feels 35°
38 °Snow

Big Arm, Thursday, 19 November

Snow. High 38°, low 35°.

Pressure30.00 inHg
Wind3.4 mph W
Humidity89%
Visibility—
Dew point35°
Fri, 2037° / 32°0.33Snow
MorningSnow34°feels 31°
AfternoonSnow34°feels 33°
EveningSnow33°feels 28°
OvernightSnow33°feels 25°
37 °Snow

Big Arm, Friday, 20 November

Snow. High 37°, low 32°.

Pressure30.12 inHg
Wind12.8 mph N
Humidity97%
Visibility—
Dew point34°
Sat, 2135° / 19°0Overcast
MorningOvercast31°feels 24°
AfternoonOvercast32°feels 27°
EveningOvercast26°feels 23°
OvernightOvercast21°feels 20°
35 °Overcast

Big Arm, Saturday, 21 November

Overcast. High 35°, low 19°.

Pressure30.27 inHg
Wind12.5 mph N
Humidity78%
Visibility—
Dew point26°

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.