Powell County, MT Weather Forecast
County weather hub
Mostly Sunny then Chance Showers And Thunderstorms
Compare major city weather across Powell County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers and thunderstorms likely. Mostly sunny. High near 89, with temperatures falling to around 82 in the afternoon. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Powell County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Powell County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 12:02 PM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Powell County
Saturday looks like the warmest upcoming period in Powell County at 90 degrees F.
Saturday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Sunday at about 0 to 12 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 12:02 PM MDT
- Coverage
- 8 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 showers and thunderstorms before 9pm, then areas of fog. Partly cloudy, with a low around 55. Southeast wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Areas of fog before 8am, then a slight chance of rain between 1pm and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northwest wind 0 to 6 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Partly cloudy, with a low around 54. Southwest wind 0 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 88. Southwest wind 0 to 12 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 54.
Mostly sunny, with a high near 85.
Mostly cloudy, with a low around 55.
Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56.
A slight chance of rain before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
89°F |
5 mph
E
|
|
Tonight
Jul 17
|
Chance Showers And Thunderstorms then Areas Of Fog
|
55°F |
0 to 5 mph
SE
|
|
Saturday
Jul 18
|
Areas Of Fog then Chance Showers And Thunderstorms
|
90°F |
0 to 6 mph
NW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
54°F |
0 to 7 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
88°F |
0 to 12 mph
SW
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
54°F |
0 to 12 mph
NW
|
|
Monday
Jul 20
|
Mostly Sunny
|
85°F |
1 to 5 mph
ENE
|
|
Monday Night
Jul 20
|
Mostly Cloudy
|
55°F |
3 to 7 mph
ENE
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
86°F |
3 mph
ENE
|
|
Tuesday Night
Jul 21
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
56°F |
1 to 5 mph
ENE
|
|
Wednesday
Jul 22
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
NNW
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
56°F |
1 to 6 mph
ESE
|
|
Thursday
Jul 23
|
Slight Chance Light Rain then Chance Showers And Thunderstorms
|
87°F |
0 to 3 mph
W
|
|
Thursday Night
Jul 23
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
56°F |
1 to 5 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Powell County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Powell County.
Largest mapped city population in this region: 2,805.
