10-day forecast for Plains, MT: 53° to 96°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
96°
Best day: Tuesday, August 11
93° · 0.07 in
Worst day: Tuesday, August 18
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1088° / 53°0
Morning58°feels 55°
Afternoon86°feels 83°
Evening82°feels 80°
Overnight58°feels 56°
88 °
Plains, Monday, 10 August
Clear. High 88°, low 53°.
Pressure29.85 inHg
Wind3.5 mph W
Humidity16%
Visibility6.2 mi
Dew point34°
Tue, 1196° / 56°0
Morning63°feels 61°
Afternoon95°feels 90°
Evening85°feels 82°
Overnight59°feels 57°
96 °
Plains, Tuesday, 11 August
Clear. High 96°, low 56°.
Pressure29.94 inHg
Wind0.5 mph NW
Humidity18%
Visibility6.2 mi
Dew point38°
Wed, 1293° / 60°0
Morning65°feels 63°
Afternoon93°feels 88°
Evening83°feels 81°
Overnight61°feels 59°
93 °
Plains, Wednesday, 12 August
Partly cloudy. High 93°, low 60°.
Pressure29.83 inHg
Wind0.8 mph E
Humidity19%
Visibility6.2 mi
Dew point38°
Thu, 1392° / 56°0
Morning64°feels 62°
Afternoon84°feels 82°
Evening85°feels 82°
Overnight68°feels 66°
92 °
Plains, Thursday, 13 August
Clear. High 92°, low 56°.
Pressure29.83 inHg
Wind11.5 mph W
Humidity30%
Visibility—
Dew point45°
Fri, 1490° / 53°0
Morning61°feels 60°
Afternoon83°feels 82°
Evening87°feels 83°
Overnight68°feels 67°
90 °
Plains, Friday, 14 August
Clear. High 90°, low 53°.
Pressure29.97 inHg
Wind4.2 mph W
Humidity31%
Visibility—
Dew point45°
Sat, 1592° / 54°0
Morning62°feels 61°
Afternoon84°feels 82°
Evening89°feels 85°
Overnight69°feels 68°
92 °
Plains, Saturday, 15 August
Partly cloudy. High 92°, low 54°.
Pressure30.03 inHg
Wind6.8 mph W
Humidity34%
Visibility—
Dew point47°
Sun, 1695° / 58°0
Morning67°feels 64°
Afternoon92°feels 88°
Evening91°feels 87°
Overnight72°feels 70°
95 °
Plains, Sunday, 16 August
Partly cloudy. High 95°, low 58°.
Pressure29.97 inHg
Wind12.3 mph W
Humidity15%
Visibility—
Dew point33°
Mon, 1796° / 61°0
Morning70°feels 68°
Afternoon93°feels 89°
Evening91°feels 87°
Overnight73°feels 71°
96 °
Plains, Monday, 17 August
Clear. High 96°, low 61°.
Pressure29.91 inHg
Wind10.3 mph W
Humidity16%
Visibility—
Dew point37°
Tue, 1893° / 62°0.07
Morning68°feels 68°
Afternoon84°feels 83°
Evening86°feels 84°
Overnight70°feels 70°
93 °
Plains, Tuesday, 18 August
Light rain. High 93°, low 62°.
Pressure30.03 inHg
Wind7.5 mph SW
Humidity36%
Visibility—
Dew point51°
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.