10-day forecast for Plains, MT: 17° to 67°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Wednesday, October 21
48° · 0.69 in
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2267° / 42°0.09
Morning42°feels 42°
Afternoon66°feels 64°
Evening50°feels 49°
Overnight45°feels 45°
67 °
Plains, Thursday, 22 October
Rain. High 67°, low 42°.
Pressure29.88 inHg
Wind2 mph E
Humidity49%
Visibility6.2 mi
Dew point38°
Fri, 2348° / 43°0.69
Morning45°feels 43°
Afternoon48°feels 48°
Evening45°feels 45°
Overnight46°feels 46°
48 °
Plains, Friday, 23 October
Rain. High 48°, low 43°.
Pressure29.94 inHg
Wind4.2 mph W
Humidity96%
Visibility4.7 mi
Dew point45°
Sat, 2451° / 39°0
Morning39°feels 39°
Afternoon50°feels 50°
Evening43°feels 43°
Overnight42°feels 42°
51 °
Plains, Saturday, 24 October
Partly cloudy. High 51°, low 39°.
Pressure30.24 inHg
Wind2.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point35°
Sun, 2552° / 35°0
Morning38°feels 38°
Afternoon48°feels 48°
Evening47°feels 47°
Overnight37°feels 37°
52 °
Plains, Sunday, 25 October
Overcast. High 52°, low 35°.
Pressure30.21 inHg
Wind3.2 mph E
Humidity60%
Visibility—
Dew point33°
Mon, 2648° / 29°0.11
Morning33°feels 33°
Afternoon43°feels 43°
Evening41°feels 41°
Overnight34°feels 34°
48 °
Plains, Monday, 26 October
Snow. High 48°, low 29°.
Pressure30.21 inHg
Wind2.6 mph E
Humidity66%
Visibility—
Dew point31°
Tue, 2738° / 28°0.11
Morning31°feels 31°
Afternoon36°feels 36°
Evening36°feels 36°
Overnight32°feels 32°
38 °
Plains, Tuesday, 27 October
Light snow. High 38°, low 28°.
Pressure30.36 inHg
Wind2.2 mph SW
Humidity95%
Visibility—
Dew point33°
Wed, 2836° / 27°0
Morning29°feels 29°
Afternoon33°feels 31°
Evening33°feels 33°
Overnight28°feels 28°
36 °
Plains, Wednesday, 28 October
Overcast. High 36°, low 27°.
Pressure30.56 inHg
Wind3 mph E
Humidity96%
Visibility—
Dew point31°
Thu, 2938° / 17°0
Morning29°feels 29°
Afternoon36°feels 36°
Evening38°feels 38°
Overnight33°feels 33°
38 °
Plains, Thursday, 29 October
Overcast. High 38°, low 17°.
Pressure30.33 inHg
Wind2.3 mph E
Humidity96%
Visibility—
Dew point33°
Fri, 3040° / 34°0
Morning35°feels 35°
Afternoon38°feels 38°
Evening39°feels 39°
Overnight37°feels 37°
40 °
Plains, Friday, 30 October
Overcast. High 40°, low 34°.
Pressure30.00 inHg
Wind2.3 mph SE
Humidity100%
Visibility—
Dew point38°
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.