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Triangle Lake, ID Weather Forecast
Triangle Lake, ID Weather Forecast Date: 1123 AM PDT Tue Sep 01 2026
The area/counties/county of: Lower Hells Canyon/Salmon River Region, including the cities of: Riggins and White Bird.or toggle through each period.
Tonight... Mostly cloudy then becoming partly cloudy in the late evening and early morning then becoming mostly cloudy. Chance of rain showers and a slight chance of thunderstorms early in the evening, then slight chance of rain late in the evening. Slight chance of rain late in the night. Chance of precipitation 30%. Lows in the upper 40s to mid 50s. Southeast winds to 15 mph.
Wednesday... Slight chance of thunderstorms. Rain showers likely in the morning, then chance of rain showers in the afternoon. Chance of precipitation 80%. Highs in the mid 60s to upper 70s. South winds 15 to 20 mph.
Wednesday Night... Rain likely after midnight. Chance of rain 70%. Lows in the upper 40s to mid 50s. South winds 15 to 20 mph with gusts to around 30 mph.
Thursday... Rain likely in the morning, then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 90%. Highs 58 to 71. South winds to 15 mph.
Thursday Night... Rain showers likely and a slight chance of thunderstorms in the evening, then rain likely after midnight. Chance of precipitation 80%. Lows in the mid 40s to lower 50s.
Friday... Rain likely in the morning, then chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 70%. Highs in the lower 60s to mid 70s.
Friday Night... Mostly cloudy with a 40% chance of rain. Lows in the mid 40s to lower 50s.
Saturday... Partly cloudy. A 20% chance of rain in the morning. Highs 70 to 83.
Saturday Night... Partly cloudy. A 30% chance of rain after midnight. Lows in the upper 40s to mid 50s.
Sunday... Partly cloudy with a 20% chance of rain. Highs in the 70s to mid 80s.
Sunday Night... Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Chance of precipitation 50%. Lows in the 50s.
Labor Day... A chance of rain in the morning, then rain likely in the afternoon. Chance of rain 60%. Highs in the 60s to upper 70s.
Monday Night... Mostly cloudy with a 50% chance of rain. Lows in the upper 40s to mid 50s.
POP = Probability of Precipitation
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