Weather WorldChain Lake, MT 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Chain Lake, MT Weather Forecast
Chain Lake, MT Weather Forecast Date: 337 PM MDT Sat Aug 08 2026
The area/counties/county of: Northwest Beaverhead County, including the cities of: Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass.or toggle through each period.
Tonight... Partly cloudy. Smoke. Lows 45 to 53. Northwest winds 5 to 15 mph with gusts to around 30 mph shifting to the west up to 5 mph with gusts to around 20 mph after midnight.
Sunday... Sunny. Smoke in the morning, then areas of smoke in the afternoon. Highs 73 to 83. West winds up to 5 mph increasing to 5 to 15 mph in the afternoon.
Sunday Night... Partly cloudy. Smoke. Lows 45 to 53. Northwest winds up to 10 mph. Gusts up to 25 mph in the evening.
Monday... Sunny. Smoke in the morning. Highs 73 to 83. West winds up to 5 mph increasing to 10 to 15 mph with gusts to around 30 mph in the afternoon.
Monday Night... Mostly clear. Lows 43 to 51. Northwest winds 10 to 15 mph with gusts to around 30 mph Decreasing to up to 10 mph after midnight.
Tuesday... Sunny. Highs 72 to 82.
Tuesday Night... Mostly clear. Lows 43 to 51. Highs 69 to 79.
Wednesday... Mostly clear. Lows 43 to 51. Highs 69 to 79.
Wednesday Night... Partly cloudy. Lows 42 to 50.
Thursday... Partly cloudy with a 20% chance of thunderstorms. Highs 63 to 74. Lows 41 to 49.
Friday... Partly cloudy with a 20% chance of thunderstorms. Highs 63 to 74. Lows 41 to 49.
Friday Night... Mostly cloudy. A 20% chance of thunderstorms in the evening. Lows 41 to 49.
POP = Probability of Precipitation
Chain Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...