10-day forecast for Plains, MT: 26° to 66°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Tuesday, October 20
45° · 0.14 in
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 2066° / 40°0
Morning40°feels 40°
Afternoon64°feels 62°
Evening52°feels 49°
Overnight45°feels 45°
66 °
Plains, Tuesday, 20 October
Overcast. High 66°, low 40°.
Pressure30.09 inHg
Wind1.5 mph E
Humidity48%
Visibility6.2 mi
Dew point37°
Wed, 2166° / 38°0
Morning38°feels 38°
Afternoon63°feels 61°
Evening53°feels 51°
Overnight42°feels 42°
66 °
Plains, Wednesday, 21 October
Partly cloudy. High 66°, low 38°.
Pressure30.00 inHg
Wind1.4 mph SE
Humidity51%
Visibility6.2 mi
Dew point39°
Thu, 2259° / 41°0.04
Morning41°feels 41°
Afternoon59°feels 57°
Evening52°feels 50°
Overnight43°feels 43°
59 °
Plains, Thursday, 22 October
Light rain. High 59°, low 41°.
Pressure29.85 inHg
Wind1.9 mph E
Humidity51%
Visibility6.2 mi
Dew point40°
Fri, 2345° / 41°0.14
Morning44°feels 43°
Afternoon44°feels 40°
Evening42°feels 39°
Overnight45°feels 45°
45 °
Plains, Friday, 23 October
Light rain. High 45°, low 41°.
Pressure29.91 inHg
Wind7.1 mph W
Humidity92%
Visibility—
Dew point42°
Sat, 2448° / 29°0
Morning33°feels 33°
Afternoon43°feels 43°
Evening44°feels 44°
Overnight37°feels 37°
48 °
Plains, Saturday, 24 October
Clear. High 48°, low 29°.
Pressure30.18 inHg
Wind3.3 mph SW
Humidity64%
Visibility—
Dew point29°
Sun, 2558° / 36°0.13
Morning42°feels 39°
Afternoon55°feels 52°
Evening44°feels 42°
Overnight40°feels 40°
58 °
Plains, Sunday, 25 October
Light rain. High 58°, low 36°.
Pressure30.03 inHg
Wind5.7 mph W
Humidity25%
Visibility—
Dew point19°
Mon, 2645° / 38°0
Morning40°feels 40°
Afternoon45°feels 44°
Evening43°feels 43°
Overnight42°feels 41°
45 °
Plains, Monday, 26 October
Light rain. High 45°, low 38°.
Pressure30.24 inHg
Wind4 mph NE
Humidity81%
Visibility—
Dew point39°
Tue, 2745° / 29°0
Morning33°feels 29°
Afternoon40°feels 37°
Evening39°feels 37°
Overnight31°feels 30°
45 °
Plains, Tuesday, 27 October
Mostly clear. High 45°, low 29°.
Pressure30.47 inHg
Wind5.1 mph E
Humidity55%
Visibility—
Dew point24°
Wed, 2853° / 26°0
Morning31°feels 31°
Afternoon44°feels 44°
Evening42°feels 41°
Overnight33°feels 33°
53 °
Plains, Wednesday, 28 October
Clear. High 53°, low 26°.
Pressure30.24 inHg
Wind3.2 mph E
Humidity37%
Visibility—
Dew point17°
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 Plains, 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.