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As of 17:31 MST

Weather in Big Arm, MT

45°Current weather

Big Arm, Sunday, 8 November, 17:31

Overcast. Feels like 40°. High 54°, low 38°.

Pressure30.12 inHg
Wind9.1 mph S
Humidity57%
Visibility6.2 mi
Dew point31°

Two-week outlook for Big Arm, MT: week one averages a high of 53.2° and week two 41°, so week two runs 12.2° cooler than week one. Around 0.5 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, November 8: 54°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 8 – November 14)53.2°40.7°0.1 in / 2 d—
2nd (November 15 – November 21)41°31.8°0.4 in / 2 d—

Weekend weather

Sun, November 8
Overcast
54°38°
no precip.
Sat, November 14
Light rain
58°41°
0.06 in
Sun, November 15
Overcast
51°41°
no precip.
Sat, November 21
Partly cloudy
37°26°
no precip.
Mon, 0948° / 35°0.02Light rain
48 °Light rain

Big Arm, Monday, 9 November

Light rain. High 48°, low 35°.

Pressure30.15 inHg
Wind1.7 mph SE
Humidity83%
Visibility3.9 mi
Dew point37°
Tue, 1048° / 39°0.04Light rain
48 °Light rain

Big Arm, Tuesday, 10 November

Light rain. High 48°, low 39°.

Pressure30.24 inHg
Wind9.7 mph SW
Humidity74%
Visibility6.2 mi
Dew point39°
Wed, 1153° / 43°0Overcast
53 °Overcast

Big Arm, Wednesday, 11 November

Overcast. High 53°, low 43°.

Pressure30.18 inHg
Wind3.6 mph SW
Humidity58%
Visibility6.2 mi
Dew point38°
Thu, 1256° / 46°0Overcast
56 °Overcast

Big Arm, Thursday, 12 November

Overcast. High 56°, low 46°.

Pressure29.94 inHg
Wind2 mph S
Humidity50%
Visibility6.2 mi
Dew point35°
Fri, 1355° / 45°0.02Light rain
55 °Light rain

Big Arm, Friday, 13 November

Light rain. High 55°, low 45°.

Pressure29.59 inHg
Wind11.1 mph SW
Humidity47%
Visibility—
Dew point31°
Sat, 1458° / 41°0.06Light rain
58 °Light rain

Big Arm, Saturday, 14 November

Light rain. High 58°, low 41°.

Pressure29.71 inHg
Wind9.6 mph SW
Humidity54%
Visibility—
Dew point34°
Sun, 1551° / 41°0Overcast
51 °Overcast

Big Arm, Sunday, 15 November

Overcast. High 51°, low 41°.

Pressure29.74 inHg
Wind5.2 mph SW
Humidity56%
Visibility—
Dew point32°
Mon, 1647° / 40°0.28Light rain
47 °Light rain

Big Arm, Monday, 16 November

Light rain. High 47°, low 40°.

Pressure29.65 inHg
Wind7.2 mph S
Humidity64%
Visibility—
Dew point35°
Tue, 1743° / 33°0.08Light rain
43 °Light rain

Big Arm, Tuesday, 17 November

Light rain. High 43°, low 33°.

Pressure30.00 inHg
Wind8.3 mph SW
Humidity62%
Visibility—
Dew point29°
Wed, 1838° / 29°0Overcast
38 °Overcast

Big Arm, Wednesday, 18 November

Overcast. High 38°, low 29°.

Pressure30.27 inHg
Wind4.5 mph SW
Humidity72%
Visibility—
Dew point26°
Thu, 1934° / 27°0Overcast
34 °Overcast

Big Arm, Thursday, 19 November

Overcast. High 34°, low 27°.

Pressure30.36 inHg
Wind2.7 mph N
Humidity71%
Visibility—
Dew point23°
Fri, 2036° / 27°0Overcast
36 °Overcast

Big Arm, Friday, 20 November

Overcast. High 36°, low 27°.

Pressure30.39 inHg
Wind3 mph NE
Humidity72%
Visibility—
Dew point24°
Sat, 2137° / 26°0Partly cloudy
37 °Partly cloudy

Big Arm, Saturday, 21 November

Partly cloudy. High 37°, low 26°.

Pressure30.39 inHg
Wind3.2 mph NE
Humidity69%
Visibility—
Dew point23°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Big Arm, MT, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.