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As of 22:37 MDT

Weather in Big Arm, MT

39°Current weather

Big Arm, Wednesday, 28 October, 22:37

Overcast. Feels like 37°. High 44°, low 38°.

Pressure30.09 inHg
Wind3 mph SE
Humidity65%
Visibility6.2 mi
Dew point29°

10-day forecast for Big Arm, MT: 34° to 49°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

49°
Best day: Thursday, November 5
44° · 0.2 in
Worst day: Wednesday, October 28

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

Thu, 2946° / 35°0.02Light snow
MorningOvercast35°feels 35°
AfternoonPartly cloudy44°feels 44°
EveningOvercast39°feels 35°
OvernightOvercast38°feels 35°
46 °Light snow

Big Arm, Thursday, 29 October

Light snow. High 46°, low 35°.

Pressure30.12 inHg
Wind3 mph S
Humidity71%
Visibility6.2 mi
Dew point33°
Fri, 3046° / 34°0Overcast
MorningOvercast34°feels 29°
AfternoonOvercast45°feels 45°
EveningOvercast40°feels 40°
OvernightOvercast36°feels 30°
46 °Overcast

Big Arm, Friday, 30 October

Overcast. High 46°, low 34°.

Pressure30.03 inHg
Wind4.6 mph NE
Humidity71%
Visibility6.0 mi
Dew point31°
Sat, 3148° / 39°0Overcast
MorningOvercast40°feels 40°
AfternoonOvercast48°feels 48°
EveningOvercast41°feels 41°
OvernightOvercast40°feels 40°
48 °Overcast

Big Arm, Saturday, 31 October

Overcast. High 48°, low 39°.

Pressure30.06 inHg
Wind1.9 mph E
Humidity76%
Visibility6.2 mi
Dew point38°
Sun, 0149° / 37°0Overcast
MorningOvercast39°feels 39°
AfternoonPartly cloudy48°feels 48°
EveningMostly clear42°feels 42°
OvernightOvercast38°feels 38°
49 °Overcast

Big Arm, Sunday, 1 November

Overcast. High 49°, low 37°.

Pressure30.06 inHg
Wind2.3 mph SE
Humidity78%
Visibility—
Dew point39°
Mon, 0246° / 35°0Clear
MorningClear38°feels 37°
AfternoonClear42°feels 40°
EveningClear42°feels 42°
OvernightClear38°feels 38°
46 °Clear

Big Arm, Monday, 2 November

Clear. High 46°, low 35°.

Pressure30.42 inHg
Wind4.9 mph S
Humidity82%
Visibility—
Dew point36°
Tue, 0349° / 38°0Overcast
MorningOvercast41°feels 41°
AfternoonOvercast46°feels 46°
EveningOvercast41°feels 41°
OvernightOvercast39°feels 37°
49 °Overcast

Big Arm, Tuesday, 3 November

Overcast. High 49°, low 38°.

Pressure30.30 inHg
Wind3.4 mph N
Humidity56%
Visibility—
Dew point30°
Wed, 0448° / 35°0Overcast
MorningOvercast38°feels 36°
AfternoonOvercast44°feels 44°
EveningOvercast42°feels 42°
OvernightOvercast39°feels 39°
48 °Overcast

Big Arm, Wednesday, 4 November

Overcast. High 48°, low 35°.

Pressure30.06 inHg
Wind3.8 mph N
Humidity56%
Visibility—
Dew point28°
Thu, 0549° / 38°0Overcast
MorningOvercast40°feels 38°
AfternoonOvercast45°feels 43°
EveningOvercast45°feels 43°
OvernightOvercast40°feels 37°
49 °Overcast

Big Arm, Thursday, 5 November

Overcast. High 49°, low 38°.

Pressure30.00 inHg
Wind4.7 mph SW
Humidity56%
Visibility—
Dew point29°
Fri, 0647° / 35°0Partly cloudy
MorningPartly cloudy39°feels 35°
AfternoonPartly cloudy45°feels 43°
EveningPartly cloudy45°feels 44°
OvernightPartly cloudy42°feels 38°
47 °Partly cloudy

Big Arm, Friday, 6 November

Partly cloudy. High 47°, low 35°.

Pressure30.12 inHg
Wind5.1 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.