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Weather in Three Forks, MT · National Weather Service + NOAA

Three Forks has a dry climate

Three Forks has cold winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 14°. In November, a normal day reaches 44° and a normal night drops to 21°.

Winter 36°/14°Spring 58°/31°Summer 82°/49°Fall 59°/31°
Right now
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Sunrise 7:08 am · sunset 5:11 pm

Getting the latest forecast from the National Weather Service…

What stands out about Three Forks’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
A dry climateJust 11 inches of rain and melted snow a year, less than 97% of U.S. towns.A long growing season139 frost-free days, from May 9 to Sep 27.
A normal year

Where today sits in Three Forks’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
36° / 14°
Snow is rare
Spring
58° / 31°
Last frost around May 9
Summer
82° / 49°
25 days reach 90° in a normal year
Fall now
59° / 31°
First frost around Sep 27
Pastthe usual first frost (Sep 27). Last frost next spring: May 9
Best months to be outside
JunSep
Highs of 62–84° and lows of 40° or more
When is it wettest?June, with 2.3 inches.Is it warmer than it used to be?+1.4° vs. the 20th century.What is each month like?Highs, lows, rain and snow for all 12.

Weather talk

Road reports, first frosts and storm memories from neighbors in Three Forks.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Three Forks itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Trident, MT (5 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.