7-Day Zone Forecast for Petroleum County (Text-Only)
NWS Forecast for: Petroleum County
Issued by: National Weather Service Glasgow, MT
Last Update: 204 PM MST Sun Nov 23 2025


Tonight: Mostly cloudy. Lows in the lower 30s. West wind around 5 mph.

Monday: Rain likely, mainly in the morning. Highs in the lower 50s. Southwest wind 5 to 10 mph, increasing to west 15 to 20 mph in the afternoon. Chance of rain 60 percent.

Monday Night: Mostly cloudy. A chance of rain and snow in the evening, then a slight chance of snow after midnight. Windy with lows in the lower 20s. Northwest wind 20 to 30 mph with gusts up to 40 mph. Chance of precipitation 30 percent.

Tuesday: Mostly sunny. Cooler with highs in the upper 30s. Northwest wind around 15 mph.

Tuesday Night: Mostly clear in the evening, then becoming mostly cloudy. Lows 15 to 20. West wind 5 to 10 mph, becoming south after midnight.

Wednesday: Mostly cloudy. Highs in the upper 30s.

Wednesday Night: A slight chance of snow. Lows in the lower 20s.

Thanksgiving Day And Thursday Night: A chance of snow. Highs in the mid 30s. Lows 15 to 20.

Friday And Friday Night: A chance of snow. Highs in the upper 20s. Lows 5 to 10 above.

Saturday: A chance of snow. Highs around 20.

Saturday Night: A chance of snow. Lows near zero.

Sunday: A chance of snow. Highs 10 to 15.







Zone Forecast: Petroleum County

Visit your local NWS office at: https://www.weather.gov/ggw