10-day forecast for Lanark, MT: 30° to 78°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Friday, October 23
44°
Worst day: Tuesday, October 27
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 2449° / 32°0.04
Morning33°feels 23°
Afternoon47°feels 42°
Evening38°feels 34°
Overnight40°feels 30°
49 °
Lanark, Saturday, 24 October
Light rain. High 49°, low 32°.
Pressure30.36 inHg
Wind15 mph W
Humidity60%
Visibility6.2 mi
Dew point24°
Sun, 2547° / 31°0
Morning31°feels 25°
Afternoon47°feels 43°
Evening37°feels 30°
Overnight33°feels 29°
47 °
Lanark, Sunday, 25 October
Clear. High 47°, low 31°.
Pressure30.56 inHg
Wind7.1 mph NE
Humidity57%
Visibility6.2 mi
Dew point21°
Mon, 2650° / 31°0
Morning31°feels 23°
Afternoon49°feels 44°
Evening43°feels 36°
Overnight33°feels 25°
50 °
Lanark, Monday, 26 October
Clear. High 50°, low 31°.
Pressure30.47 inHg
Wind12.3 mph SE
Humidity58%
Visibility6.2 mi
Dew point28°
Tue, 2744° / 34°0
Morning35°feels 26°
Afternoon43°feels 37°
Evening43°feels 37°
Overnight37°feels 29°
44 °
Lanark, Tuesday, 27 October
Light rain. High 44°, low 34°.
Pressure30.09 inHg
Wind13.5 mph SE
Humidity63%
Visibility—
Dew point30°
Wed, 2845° / 38°0
Morning42°feels 38°
Afternoon45°feels 38°
Evening40°feels 33°
Overnight38°feels 32°
45 °
Lanark, Wednesday, 28 October
Overcast. High 45°, low 38°.
Pressure29.94 inHg
Wind16.4 mph NW
Humidity67%
Visibility—
Dew point35°
Thu, 2945° / 30°0
Morning34°feels 26°
Afternoon42°feels 35°
Evening38°feels 34°
Overnight33°feels 32°
45 °
Lanark, Thursday, 29 October
Mostly clear. High 45°, low 30°.
Pressure30.24 inHg
Wind17 mph NW
Humidity42%
Visibility—
Dew point19°
Fri, 3052° / 31°0
Morning36°feels 29°
Afternoon46°feels 41°
Evening45°feels 42°
Overnight40°feels 35°
52 °
Lanark, Friday, 30 October
Clear. High 52°, low 31°.
Pressure30.06 inHg
Wind13.5 mph SE
Humidity36%
Visibility—
Dew point19°
Sat, 3157° / 37°0
Morning41°feels 38°
Afternoon51°feels 48°
Evening47°feels 45°
Overnight43°feels 40°
57 °
Lanark, Saturday, 31 October
Clear. High 57°, low 37°.
Pressure29.88 inHg
Wind8.8 mph SW
Humidity39%
Visibility—
Dew point26°
Sun, 0162° / 40°0
Morning44°feels 40°
Afternoon55°feels 52°
Evening51°feels 47°
Overnight44°feels 41°
62 °
Lanark, Sunday, 1 November
Clear. High 62°, low 40°.
Pressure29.83 inHg
Wind8.3 mph SW
Humidity35%
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 Lanark, 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.