Montana · Lake fishing · Troy

Spar Lake

Jun–Sep
best months

Caution at last check

Agency alerts are in effect for this area; weather is good · USFS, OpenWeather · checked 13 h ago

Is Spar Lake open right now?

Closure in the area

There's a closure order in Three Rivers Ranger District. It doesn't name Spar Lake, so check the source for the area it covers (2 listed).

As of · Source: USFS · Three Rivers Ranger District. Agencies don't list every closure — check before you go.

Spar Lake is a 387-acre lake near Troy, Montana, at about 3,256 feet.

Local outfitters

Not on Roamze yet. Their page has how to reach them.

  • Best time to go · Jun–Sep

    Best time to visit Spar Lake

    Best months: June–September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

    1. Jan

      33° / 23°

      17 wet · 12 snow

    2. Feb

      37° / 23°

      14 wet · 8 snow

    3. Mar

      47° / 27°

      14 wet · 6 snow

    4. Apr

      57° / 31°

      13 wet · 2 snow

    5. May

      67° / 39°

      13 wet

    6. Jun

      72° / 45°

      12 wet

    7. Jul

      82° / 47°

      8 wet

    8. Aug

      82° / 46°

      6 wet

    9. Sep

      71° / 40°

      9 wet

    10. Oct

      55° / 34°

      13 wet · 1 snow

    11. Nov

      40° / 29°

      16 wet · 6 snow

    12. Dec

      32° / 23°

      18 wet · 12 snow

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Heron 2 Nw, MT, 12.9 mi away at 2,240 ft. The station sits about 1,000 ft lower than this place, so expect it a little cooler here. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

    Closures we've recorded since August 2026

    • Spar Lake Road #384 Road Closed to Motorized Vehicles

      Three Rivers Ranger District · Order dated February 6, 2026; seen Aug 23, 2026, no lift recorded · Forest Service

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