10-day forecast for Arnold, MT: 32° to 68°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
68°
Best day: Saturday, October 17
55°
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1862° / 32°0
Morning32°feels 32°
Afternoon56°feels 54°
Evening42°feels 38°
Overnight37°feels 37°
62 °
Arnold, Sunday, 18 October
Partly cloudy. High 62°, low 32°.
Pressure30.12 inHg
Wind0.6 mph N
Humidity50%
Visibility6.2 mi
Dew point35°
Mon, 1964° / 35°0
Morning36°feels 36°
Afternoon61°feels 59°
Evening50°feels 50°
Overnight36°feels 36°
64 °
Arnold, Monday, 19 October
Overcast. High 64°, low 35°.
Pressure29.97 inHg
Wind1 mph NE
Humidity49%
Visibility6.2 mi
Dew point36°
Tue, 2061° / 37°0
Morning37°feels 37°
Afternoon59°feels 57°
Evening47°feels 47°
Overnight38°feels 38°
61 °
Arnold, Tuesday, 20 October
Overcast. High 61°, low 37°.
Pressure30.09 inHg
Wind3.1 mph N
Humidity47%
Visibility6.2 mi
Dew point35°
Wed, 2162° / 39°0
Morning41°feels 41°
Afternoon59°feels 57°
Evening55°feels 53°
Overnight42°feels 42°
62 °
Arnold, Wednesday, 21 October
Clear. High 62°, low 39°.
Pressure30.09 inHg
Wind0.4 mph N
Humidity59%
Visibility6.2 mi
Dew point40°
Thu, 2265° / 42°0
Morning47°feels 46°
Afternoon59°feels 57°
Evening58°feels 56°
Overnight48°feels 47°
65 °
Arnold, Thursday, 22 October
Partly cloudy. High 65°, low 42°.
Pressure29.91 inHg
Wind4.8 mph S
Humidity53%
Visibility—
Dew point40°
Fri, 2355° / 43°0
Morning46°feels 46°
Afternoon53°feels 51°
Evening51°feels 48°
Overnight46°feels 43°
55 °
Arnold, Friday, 23 October
Light rain. High 55°, low 43°.
Pressure29.94 inHg
Wind8.4 mph SE
Humidity62%
Visibility—
Dew point39°
Sat, 2459° / 45°0
Morning47°feels 47°
Afternoon53°feels 51°
Evening53°feels 51°
Overnight47°feels 46°
59 °
Arnold, Saturday, 24 October
Overcast. High 59°, low 45°.
Pressure30.09 inHg
Wind4.3 mph NE
Humidity57%
Visibility—
Dew point37°
Sun, 2561° / 42°0
Morning46°feels 45°
Afternoon55°feels 53°
Evening54°feels 51°
Overnight47°feels 45°
61 °
Arnold, Sunday, 25 October
Clear. High 61°, low 42°.
Pressure30.15 inHg
Wind5.3 mph S
Humidity44%
Visibility—
Dew point32°
Mon, 2665° / 43°0
Morning47°feels 45°
Afternoon58°feels 55°
Evening56°feels 53°
Overnight48°feels 46°
65 °
Arnold, Monday, 26 October
Clear. High 65°, low 43°.
Pressure30.00 inHg
Wind4.9 mph S
Humidity29%
Visibility—
Dew point24°
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 Arnold, 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.