Harrison, MT Weather Forecast
Local 7-day forecast
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harrison, MT in one place.
A chance of rain showers between 9am and noon, then a slight chance of showers and thunderstorms between noon and 3pm. Mostly sunny, with a high near 57. West wind 9 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Harrison, 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: Jun 9, 2026 2:10 PM MDT.
The active forecast window currently covers Jun 10 to Jun 15, 2026 for Harrison, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 2:10 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Harrison
Friday looks like the warmest upcoming period in Harrison at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Wednesday at about 9 to 24 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 2:10 PM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KTFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 38. West wind 7 to 24 mph, with gusts as high as 36 mph.
Sunny, with a high near 68. West southwest wind around 7 mph.
Mostly clear, with a low around 42. West southwest wind 0 to 8 mph, with gusts as high as 18 mph.
Sunny, with a high near 74. Northwest wind 1 to 8 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 45. Northwest wind 2 to 10 mph, with gusts as high as 20 mph.
A slight chance of rain showers before noon, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Partly cloudy, with a low around 44.
Sunny, with a high near 70.
Mostly clear, with a low around 45.
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 72.
Partly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
57°F |
9 to 24 mph
W
|
|
Wednesday Night
Jun 10
|
Mostly Cloudy
|
38°F |
7 to 24 mph
W
|
|
Thursday
Jun 11
|
Sunny
|
68°F |
7 mph
WSW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
42°F |
0 to 8 mph
WSW
|
|
Friday
Jun 12
|
Sunny
|
74°F |
1 to 8 mph
NW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
45°F |
2 to 10 mph
NW
|
|
Saturday
Jun 13
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
68°F |
1 to 10 mph
N
|
|
Saturday Night
Jun 13
|
Partly Cloudy
|
44°F |
1 to 13 mph
NNE
|
|
Sunday
Jun 14
|
Sunny
|
70°F |
0 to 8 mph
NNE
|
|
Sunday Night
Jun 14
|
Mostly Clear
|
45°F |
1 to 10 mph
NNW
|
|
Monday
Jun 15
|
Sunny then Slight Chance Showers And Thunderstorms
|
72°F |
0 to 8 mph
ENE
|
|
Monday Night
Jun 15
|
Partly Cloudy
|
47°F |
1 to 9 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harrison.