| NWS Forecast for: Helena Valley Issued by: National Weather Service Great Falls, MT Last Update: 201 AM MDT Thu Aug 28 2025 | |
| Today: Cooler. Rain showers likely in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs around 70. Southeast winds up to 5 mph shifting to the southwest in the afternoon. Chance of precipitation 90 percent. Tonight: Mostly cloudy. Chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows 50 to 55. South winds up to 5 mph. Chance of precipitation 50 percent. Friday: Mostly cloudy. Chance of rain showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs in the mid 70s. Southwest winds up to 5 mph shifting to the northwest in the afternoon. Chance of precipitation 60 percent. Friday Night: Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 50. North winds 5 to 10 mph shifting to the southwest after midnight. Chance of precipitation 30 percent. Saturday: Partly cloudy in the morning then clearing. Highs around 80. Light winds becoming west 5 to 10 mph in the afternoon. Saturday Night And Sunday: Mostly clear. Lows around 50. Highs around 85. Sunday Night And Labor Day: Mostly clear. Lows around 55. Highs 85 to 90. Monday Night And Tuesday: Partly cloudy. Lows around 55. Highs 80 to 85. Tuesday Night: Partly cloudy. Lows around 50. Wednesday: Sunny. Highs around 80. | |
| Zone Forecast: Helena Valley | |
Visit your local NWS office at: https://www.weather.gov/tfx |