| NWS Forecast for: Helena Valley Issued by: National Weather Service Great Falls, MT Last Update: 210 AM MDT Sat Jun 14 2025 |  |
| Today: Sunny in the morning, then partly cloudy with a 30 percent chance of thunderstorms in the afternoon. Highs around 80. Northwest winds up to 10 mph. Tonight: Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 50 to 55. Northwest winds up to 10 mph. Sunday: Partly cloudy in the morning, then mostly cloudy with a 50 percent chance of thunderstorms in the afternoon. Highs around 80. Light winds becoming north up to 10 mph in the afternoon. Sunday Night: Mostly cloudy with a 40 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 50 to 55. Northwest winds up to 10 mph. Monday: Mostly cloudy. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 75 to 80. Light winds becoming northeast up to 5 mph in the afternoon. Chance of precipitation 50 percent. Monday Night: Mostly cloudy with a 50 percent chance of thunderstorms. Lows around 50. Tuesday: Mostly cloudy with a 40 percent chance of thunderstorms. Highs around 75. Tuesday Night Through Wednesday Night: Mostly clear. Lows 45 to 50. Highs around 80. Juneteenth: Sunny. Highs around 85. Thursday Night: Partly cloudy. Lows around 50. Friday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 80 to 85. | |
| Zone Forecast: Helena Valley | |
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