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As of 16:23 MDT

Weather in Big Arm, MT

42°Current weather

Big Arm, Friday, 23 October, 16:23

Overcast. Feels like 38°. High 48°, low 35°.

Pressure30.00 inHg
Wind7 mph NW
Humidity50%
Visibility6.2 mi
Dew point28°

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: Saturday, October 24
48° · 0.07 in
Worst day: Friday, October 23

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

Sat, 2452° / 35°0Clear
MorningClear36°feels 36°
AfternoonClear49°feels 46°
EveningOvercast40°feels 40°
OvernightOvercast42°feels 40°
52 °Clear

Big Arm, Saturday, 24 October

Clear. High 52°, low 35°.

Pressure30.24 inHg
Wind5.5 mph SW
Humidity61%
Visibility6.2 mi
Dew point32°
Sun, 2550° / 30°0Partly cloudy
MorningOvercast35°feels 29°
AfternoonMostly clear47°feels 44°
EveningOvercast42°feels 39°
OvernightPartly cloudy43°feels 41°
50 °Partly cloudy

Big Arm, Sunday, 25 October

Partly cloudy. High 50°, low 30°.

Pressure30.27 inHg
Wind7.6 mph NE
Humidity65%
Visibility6.2 mi
Dew point29°
Mon, 2649° / 35°0Overcast
MorningOvercast36°feels 32°
AfternoonOvercast48°feels 48°
EveningPartly cloudy43°feels 43°
OvernightOvercast37°feels 31°
49 °Overcast

Big Arm, Monday, 26 October

Overcast. High 49°, low 35°.

Pressure30.06 inHg
Wind2.1 mph NE
Humidity60%
Visibility6.2 mi
Dew point30°
Tue, 2746° / 39°0.05Light rain
MorningOvercast39°feels 36°
AfternoonLight rain45°feels 40°
EveningLight rain45°feels 40°
OvernightOvercast40°feels 40°
46 °Light rain

Big Arm, Tuesday, 27 October

Light rain. High 46°, low 39°.

Pressure30.12 inHg
Wind9.6 mph SW
Humidity82%
Visibility6.2 mi
Dew point37°
Wed, 2846° / 39°0.02Light rain
MorningLight rain42°feels 42°
AfternoonLight rain45°feels 44°
EveningLight rain43°feels 39°
OvernightLight rain40°feels 38°
46 °Light rain

Big Arm, Wednesday, 28 October

Light rain. High 46°, low 39°.

Pressure29.88 inHg
Wind7.6 mph S
Humidity71%
Visibility—
Dew point36°
Thu, 2948° / 36°0Partly cloudy
MorningPartly cloudy40°feels 40°
AfternoonPartly cloudy44°feels 42°
EveningPartly cloudy43°feels 43°
OvernightPartly cloudy41°feels 41°
48 °Partly cloudy

Big Arm, Thursday, 29 October

Partly cloudy. High 48°, low 36°.

Pressure29.97 inHg
Wind4.3 mph SW
Humidity69%
Visibility—
Dew point34°
Fri, 3047° / 33°0Overcast
MorningOvercast35°feels 31°
AfternoonOvercast41°feels 39°
EveningOvercast42°feels 42°
OvernightOvercast37°feels 36°
47 °Overcast

Big Arm, Friday, 30 October

Overcast. High 47°, low 33°.

Pressure29.97 inHg
Wind5.5 mph SW
Humidity71%
Visibility—
Dew point31°
Sat, 3145° / 31°0Partly cloudy
MorningPartly cloudy34°feels 34°
AfternoonPartly cloudy41°feels 41°
EveningPartly cloudy39°feels 39°
OvernightPartly cloudy37°feels 37°
45 °Partly cloudy

Big Arm, Saturday, 31 October

Partly cloudy. High 45°, low 31°.

Pressure30.06 inHg
Wind3.4 mph SW
Humidity61%
Visibility—
Dew point27°
Sun, 0148° / 32°0Clear
MorningClear35°feels 35°
AfternoonClear42°feels 41°
EveningClear41°feels 40°
OvernightClear34°feels 31°
48 °Clear

Big Arm, Sunday, 1 November

Clear. High 48°, low 32°.

Pressure30.15 inHg
Wind4.1 mph SW
Humidity55%
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.