EN
English Español

As of 10:48 MDT

Weather in Big Arm, MT

46°Current weather

Big Arm, Wednesday, 21 October, 10:48

Mostly clear. Feels like 46°. High 63°, low 36°.

Pressure30.06 inHg
Wind1.7 mph S
Humidity44%
Visibility—
Dew point26°

10-day forecast for Big Arm, MT: 33° to 65°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

65°
Best day: Thursday, October 22
52° · 0.3 in
Worst day: Friday, October 23

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

Thu, 2265° / 40°0Mostly clear
MorningOvercast40°feels 40°
AfternoonMostly clear64°feels 62°
EveningPartly cloudy49°feels 49°
OvernightMostly clear44°feels 44°
65 °Mostly clear

Big Arm, Thursday, 22 October

Mostly clear. High 65°, low 40°.

Pressure29.88 inHg
Wind2.3 mph E
Humidity58%
Visibility3.6 mi
Dew point44°
Fri, 2352° / 39°0.3Light rain
MorningLight rain49°feels 49°
AfternoonLight rain43°feels 37°
EveningPartly cloudy42°feels 42°
OvernightOvercast52°feels 50°
52 °Light rain

Big Arm, Friday, 23 October

Light rain. High 52°, low 39°.

Pressure29.91 inHg
Wind12.3 mph N
Humidity90%
Visibility2.5 mi
Dew point43°
Sat, 2449° / 38°0Partly cloudy
MorningOvercast38°feels 35°
AfternoonPartly cloudy47°feels 46°
EveningOvercast45°feels 45°
OvernightOvercast39°feels 37°
49 °Partly cloudy

Big Arm, Saturday, 24 October

Partly cloudy. High 49°, low 38°.

Pressure30.30 inHg
Wind3.6 mph SE
Humidity62%
Visibility6.2 mi
Dew point31°
Sun, 2550° / 39°0Overcast
MorningPartly cloudy39°feels 37°
AfternoonOvercast47°feels 44°
EveningOvercast46°feels 41°
OvernightPartly cloudy42°feels 42°
50 °Overcast

Big Arm, Sunday, 25 October

Overcast. High 50°, low 39°.

Pressure30.24 inHg
Wind10.1 mph NE
Humidity58%
Visibility—
Dew point32°
Mon, 2647° / 33°0Mostly clear
MorningMostly clear36°feels 32°
AfternoonMostly clear42°feels 41°
EveningMostly clear44°feels 44°
OvernightMostly clear39°feels 38°
47 °Mostly clear

Big Arm, Monday, 26 October

Mostly clear. High 47°, low 33°.

Pressure30.36 inHg
Wind7.7 mph NE
Humidity71%
Visibility—
Dew point32°
Tue, 2751° / 40°0.16Light rain
MorningLight rain46°feels 44°
AfternoonLight rain50°feels 48°
EveningLight rain46°feels 46°
OvernightLight rain45°feels 45°
51 °Light rain

Big Arm, Tuesday, 27 October

Light rain. High 51°, low 40°.

Pressure30.03 inHg
Wind4.4 mph N
Humidity59%
Visibility—
Dew point36°
Wed, 2852° / 40°0.06Light rain
MorningLight rain42°feels 40°
AfternoonLight rain47°feels 47°
EveningLight rain45°feels 45°
OvernightLight rain41°feels 41°
52 °Light rain

Big Arm, Wednesday, 28 October

Light rain. High 52°, low 40°.

Pressure30.27 inHg
Wind7 mph N
Humidity71%
Visibility—
Dew point38°
Thu, 2952° / 37°0Clear
MorningClear40°feels 39°
AfternoonClear47°feels 46°
EveningClear46°feels 46°
OvernightClear41°feels 41°
52 °Clear

Big Arm, Thursday, 29 October

Clear. High 52°, low 37°.

Pressure30.09 inHg
Wind3.2 mph S
Humidity66%
Visibility—
Dew point35°
Fri, 3053° / 36°0Partly cloudy
MorningPartly cloudy39°feels 36°
AfternoonPartly cloudy47°feels 45°
EveningPartly cloudy50°feels 47°
OvernightPartly cloudy44°feels 40°
53 °Partly cloudy

Big Arm, Friday, 30 October

Partly cloudy. High 53°, low 36°.

Pressure29.71 inHg
Wind11 mph SW
Humidity57%
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.