Lamarche Lake, MT 7-Day Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Lamarche Lake, MT 7-Day Weather Forecast

Current Conditions

Settings
Lamarche Lake MT weather  - Clear - 89°F
Clear
89°F
Updated 6:45 pm
Feels Like 73°F
Humidity 13%
Wind NW 6 mph
Barometer  30.16 in
Dew Point 32°F
Lamarche Lake MT weather  - Clear - 32°C
Clear
32°C
Updated 6:45 pm
Feels Like 23°C
Humidity 13%
Wind NW 10 km/h
Barometer  102.1 kPa
Dew Point 0°C
Weather in Lamarche LakeLamarche Lake Weather

Lamarche Lake Weather Forecast

Weather Lamarche LakeLamarche Lake weather forecast

Lamarche Lake, MT Weather Forecast Date: 1222 PM MDT Thu Aug 20 2026

Weather forecast for Lamarche Lake, MT


Tonight
Lamarche Lake MT Weather for Tonight - Partly Cloudy
Lo: 55°F
Lo: 13°C
Tonight... Partly cloudy then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Lows in the 50s.
Fri
Lamarche Lake MT Weather for Friday - Partly Cloudy
Hi: 86°FHi: 30°C
Lo: 55°F
Lo: 13°C
Friday... Partly cloudy. Highs in the mid 80s to lower 90s.
Sat
Lamarche Lake MT Weather for Saturday - Chance Of T-Storm
Hi: 85°FHi: 29°C
Lo: 50°F
Lo: 10°C
Saturday... Slight chance of rain in the morning, then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 70%. Highs in the 80s.
Sun
Lamarche Lake MT Weather for Sunday - Chance Of T-Storm
Hi: 76°FHi: 24°C
Lo: 45°F
Lo: 7°C
Sunday... Partly cloudy. A 20% chance of showers and thunderstorms in the afternoon. Highs in the mid 70s to lower 80s.
Mon
Lamarche Lake MT Weather for Monday - Mostly Sunny
Hi: 76°FHi: 24°C
Lo: 46°F
Lo: 8°C
Monday... Mostly sunny. Highs in the mid 70s to lower 80s.
Tue
Lamarche Lake MT Weather for Tuesday - Chance Of T-Storm
Hi: 76°FHi: 24°C
Lo: 46°F
Lo: 8°C
Tuesday... Partly cloudy. A 20% chance of showers and thunderstorms in the afternoon. Highs in the mid 70s to lower 80s.
Wed
Lamarche Lake MT Weather for Wednesday - Chance Of T-Storm
Hi: 76°FHi: 24°C
Lo: 46°F
Lo: 8°C
Wednesday... Partly cloudy. A 20% chance of showers and thunderstorms in the afternoon. Highs in the mid 70s to lower 80s.

Trending Headlines

Lamarche Lake Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Lamarche Lake Quick Facts

National Two Day Weather Forecast

E-mail the Lamarche Lake Weather Forecast

Voice your opinion or tell us about page issues...