| NWS Forecast for: Helena Valley Issued by: National Weather Service Great Falls, MT Last Update: 1047 PM MDT Wed Aug 26 2026 |  |
| Rest Of Tonight: Mostly cloudy late in the evening then becoming partly cloudy. A 20 percent chance of rain showers in the late evening and early morning. Lows in the mid 50s. Southwest winds 5 to 10 mph shifting to the southeast after midnight. Thursday: Partly sunny. Slight chance of dry thunderstorms in the afternoon. Highs in the upper 80s. Southeast winds up to 10 mph. Thursday Night: Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 50s. South winds up to 10 mph. Chance of precipitation 40 percent. Friday: Mostly cloudy. Highs in the lower 80s. South winds up to 10 mph. Friday Night: Mostly cloudy. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Lows in the mid 50s. South winds up to 15 mph. Chance of showers 40 percent. Saturday And Saturday Night: Rain showers and chance of thunderstorms. Highs in the upper 70s. Lows in the mid 40s. Chance of precipitation 80 percent. Sunday: Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 50 percent. Sunday Night: Mostly cloudy with a 30 percent chance of rain showers in the evening, then mostly clear after midnight. Lows in the lower 40s. Monday Through Tuesday: Mostly clear. Highs in the upper 70s. Lows in the upper 40s. Tuesday Night: Mostly cloudy with a 20 percent chance of rain showers in the evening, then partly cloudy after midnight. Lows in the upper 40s. Wednesday: Mostly sunny. Highs in the upper 70s. | |
| Zone Forecast: Helena Valley | |
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