| NWS Forecast for: Central and Southern Valley Issued by: National Weather Service Glasgow, MT Last Update: 1241 AM MDT Thu May 21 2026 | |
| Rest Of Tonight: Mostly cloudy. Lows in the upper 30s. Northwest wind around 10 mph. Thursday: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Northwest wind 10 to 15 mph. Chance of rain 40 percent. Thursday Night: Mostly cloudy in the evening, then clearing. Lows in the upper 30s. Northwest wind 10 to 15 mph, decreasing to around 5 mph after midnight. Friday: Mostly sunny. Highs around 70. Northwest wind around 5 mph. Friday Night: Partly cloudy. Lows in the lower 40s. North wind around 5 mph, becoming east after midnight. Saturday: Sunny. Highs in the upper 70s. Saturday Night: Partly cloudy. Lows in the upper 40s. Sunday: Sunny. Highs in the mid 80s. Sunday Night: Partly cloudy. Lows in the lower 50s. Memorial Day: Sunny. Highs around 90. Monday Night And Tuesday: Partly cloudy. Lows in the upper 50s. Highs around 90. Tuesday Night: A chance of showers with a slight chance of thunderstorms. Breezy with lows in the upper 50s. Wednesday: A slight chance of thunderstorms. Highs in the mid 80s. | |
| Zone Forecast: Central and Southern Valley | |
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