Weather Forecast for
Petroleum County, MT Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Partly cloudy, with a low around 44. West wind 6 to 8 mph. Chance of precipitation is 20%.


Monday: A 40 percent chance of showers and thunderstorms, mainly between noon and 5pm. Mostly cloudy, with a high near 57. Northwest wind 8 to 16 mph, with gusts as high as 25 mph.

Monday Night: A 20 percent chance of showers between midnight and 3am. Mostly cloudy, with a low around 42. North northwest wind 5 to 11 mph becoming west after midnight.

Tuesday: Mostly sunny, with a high near 58. Northwest wind 13 to 16 mph, with gusts as high as 23 mph.

Tuesday Night: Mostly clear, with a low around 40. Northwest wind 6 to 11 mph becoming light and variable.

Wednesday: Mostly sunny, with a high near 63. Southwest wind 7 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

Wednesday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 42. Northwest wind 10 to 13 mph.

Thursday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 60. Northwest wind 6 to 8 mph.

Thursday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 39. Northeast wind around 7 mph.

Friday: A 30 percent chance of showers. Mostly cloudy, with a high near 49. North wind 7 to 9 mph.

Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 37. Northeast wind 10 to 13 mph.

Saturday: A chance of showers. Mostly cloudy, with a high near 50.

Saturday Night: A chance of showers. Mostly cloudy, with a low around 38.

Sunday: A chance of showers. Mostly cloudy, with a high near 49.