Plains, MT Weather Forecast
Local 7-day forecast
Sunny then Slight Chance Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Plains, MT in one place.
A slight chance of rain after noon. Sunny, with a high near 97. Northeast wind around 2 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Plains, MT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 6:14 PM MDT.
The active forecast window currently covers Jul 16 to Jul 20, 2026 for Plains, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 6:14 PM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Plains
Thursday looks like the warmest upcoming period in Plains at 97 degrees F.
Saturday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Saturday Night at about 1 to 9 mph WSW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 6:14 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- MSO
- Radar station
- KMSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain before midnight. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 97.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
Sunny, with a high near 95.
Mostly clear, with a low around 57.
Sunny, with a high near 96.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 96.
Partly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Sunny then Slight Chance Light Rain
|
97°F |
2 mph
NE
|
|
Thursday Night
Jul 16
|
Chance Light Rain then Partly Cloudy
|
61°F |
0 to 3 mph
NE
|
|
Friday
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
97°F |
2 mph
NW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
1 to 6 mph
WSW
|
|
Saturday
Jul 18
|
Sunny
|
95°F |
0 to 7 mph
WSW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
57°F |
1 to 9 mph
WSW
|
|
Sunday
Jul 19
|
Sunny
|
96°F |
2 mph
W
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
59°F |
0 to 5 mph
NW
|
|
Monday
Jul 20
|
Mostly Sunny
|
96°F |
2 mph
NE
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
62°F |
2 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Plains.