Arrowhead Lake
- 0.4 mi
- round trip
- 157 ft
- climb
- 5,985 ft
- high point
- Out and back
- route
- Jul–Sep
- best months
Caution today
Agency alerts are in effect for this area; weather is good · USFS, OpenWeather · checked 6 h ago
Is Arrowhead Lake open right now?
Alert in the area
The Forest Service lists an alert for Lolo National Forest.
East Fork Big Creek Road & Trail Closure- Superior Ranger District
Agency alert covering Lolo National Forest · Order 26-003- · USFS · Lolo National Forest
As of · Source: USFS · Lolo National Forest. Agencies don't list every closure — check before you go.
Arrowhead Lake is an easy, short out-and-back hike in the Plains/Thompson Falls Ranger District of Montana's Lolo National Forest, managed by the Forest Service. The trail is about 0.4 miles long, with a one-way elevation gain of about 160 feet. It starts at roughly 5,828 feet and reaches a high point of about 5,985 feet. The trail has a natural surface and is open to both horses and bikes. It's open year-round, and the closest town is Thompson Falls. Summer is the most comfortable time to go. Typical averages from a nearby weather station show July and August highs around 70°F with only about six wet days a month, while winter highs stay near 28°F and wet days are common. Nearby, the Four Lakes Creek Trailhead offers mountain biking on Big Spruce Creek about 0.7 miles away and South Fork Four Lakes Creek about 1.3 miles away. Clark Memorial Campground and Copper King Campground, both about 5 miles out, are the closest places to camp.
Best time to go · Jul–Sep
Best time to visit Arrowhead Lake
Best months: July–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.
Jan
28° / 19°
19 wet
Feb
28° / 19°
17 wet
Mar
34° / 22°
19 wet
Apr
40° / 27°
17 wet
May
50° / 36°
15 wet
Jun
58° / 42°
13 wet
Jul
70° / 52°
6 wet
Aug
69° / 51°
6 wet
Sep
59° / 44°
8 wet
Oct
44° / 32°
13 wet
Nov
32° / 23°
17 wet
Dec
27° / 18°
18 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Mullan Pass Vor/Dme, ID, 23.7 mi away at 6,028 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
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