Petroleum County, MT Weather Forecast
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Chance Showers And Thunderstorms then Mostly Cloudy
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A chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 46. West wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
County Weather Overview
This county weather page brings together forecast coverage for Petroleum County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 0 of 0 mapped cities in Petroleum County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 9 to Jun 16, 2026
- Latest sync
- Jun 9, 2026 9:05 PM MDT
- Forecast office
- GGW
- Source
- NOAA / NWS
Daily Outlook
This Week in Petroleum County
Tuesday looks like the warmest upcoming period in Petroleum County at 78 degrees F.
Saturday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Wednesday Night at about 28 mph WNW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 9:05 PM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- GGW
- Radar station
- KBLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers between 3pm and 5pm. Mostly sunny. High near 66, with temperatures falling to around 62 in the afternoon. West wind 13 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Rain showers. Mostly cloudy, with a low around 43. West northwest wind around 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%.
Mostly sunny, with a high near 71. West northwest wind 21 to 28 mph, with gusts as high as 40 mph.
Mostly clear, with a low around 43. West northwest wind 3 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 74. West northwest wind 5 to 15 mph, with gusts as high as 24 mph.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44. North wind 6 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
A chance of rain showers. Partly sunny, with a high near 65. North northwest wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
A slight chance of rain showers. Mostly cloudy, with a low around 41. Northwest wind 5 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
A slight chance of rain showers before noon, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 67. North northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 43. Northwest wind 3 to 10 mph.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Jun 9
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
46°F |
13 to 16 mph
W
|
|
Wednesday
Jun 10
|
Mostly Sunny then Slight Chance Rain Showers
|
66°F |
13 to 26 mph
W
|
|
Wednesday Night
Jun 10
|
Rain Showers
|
43°F |
28 mph
WNW
|
|
Thursday
Jun 11
|
Mostly Sunny
|
71°F |
21 to 28 mph
WNW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
43°F |
3 to 15 mph
WNW
|
|
Friday
Jun 12
|
Sunny
|
74°F |
5 to 15 mph
WNW
|
|
Friday Night
Jun 12
|
Slight Chance Showers And Thunderstorms
|
44°F |
6 to 16 mph
N
|
|
Saturday
Jun 13
|
Chance Rain Showers
|
65°F |
8 to 16 mph
NNW
|
|
Saturday Night
Jun 13
|
Slight Chance Rain Showers
|
41°F |
5 to 16 mph
NW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
67°F |
5 to 10 mph
NNW
|
|
Sunday Night
Jun 14
|
Partly Cloudy
|
43°F |
3 to 10 mph
NW
|
|
Monday
Jun 15
|
Mostly Sunny then Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
NW
|
|
Monday Night
Jun 15
|
Partly Cloudy
|
45°F |
3 to 10 mph
WNW
|
|
Tuesday
Jun 16
|
Mostly Sunny
|
78°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Petroleum County.
Nearby forecast pages are not available for this location yet.
Coverage
Forecast coverage currently spans 0 of 0 mapped cities in Petroleum County.
