Greenough, MT Weather Forecast
Local 7-day forecast
Patchy Fog then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Greenough, MT in one place.
Patchy fog before 10am. Sunny, with a high near 66. East wind around 3 mph.
Local Weather Overview
This forecast page for Greenough, 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: Sep 14, 2026 9:22 PM MDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Greenough, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 9:22 PM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Greenough
Thursday looks like the warmest upcoming period in Greenough at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Wednesday at about 3 mph E.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 9:22 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
Patchy fog after 3am. Mostly clear, with a low around 36. East northeast wind around 3 mph.
Patchy fog before 9am. Sunny, with a high near 74.
Showers and thunderstorms likely before midnight, then a chance of rain. Mostly cloudy, with a low around 42. New rainfall amounts less than a tenth of an inch possible.
A chance of rain before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 68. New rainfall amounts less than a tenth of an inch possible.
A chance of rain. Mostly cloudy, with a low around 40.
A slight chance of rain after noon. Mostly sunny, with a high near 68.
Mostly clear, with a low around 39.
Sunny, with a high near 70.
Mostly clear, with a low around 38.
Sunny, with a high near 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Patchy Fog then Sunny
|
66°F |
3 mph
E
|
|
Wednesday Night
Sep 16
|
Mostly Clear then Patchy Fog
|
36°F |
3 mph
ENE
|
|
Thursday
Sep 17
|
Patchy Fog then Sunny
|
74°F |
1 mph
ENE
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms Likely then Chance Light Rain
|
42°F |
1 mph
WNW
|
|
Friday
Sep 18
|
Chance Light Rain then Chance Showers And Thunderstorms
|
68°F |
2 mph
WNW
|
|
Friday Night
Sep 18
|
Chance Light Rain
|
40°F |
2 mph
WSW
|
|
Saturday
Sep 19
|
Mostly Sunny then Slight Chance Light Rain
|
68°F |
0 to 3 mph
WNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
39°F |
2 mph
NW
|
|
Sunday
Sep 20
|
Sunny
|
70°F |
1 mph
NW
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
38°F |
0 mph
|
|
Monday
Sep 21
|
Sunny
|
72°F |
1 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Greenough.