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Weather in Marysville, MT · National Weather Service + NOAA

Marysville stays cool in summer

Marysville has chilly winters and pleasant summers, with very little rain. A typical July afternoon reaches 78°, a January night drops to 15°. A typical November afternoon reaches 38°, and nights fall to 21°.

Winter 32°/15°Spring 50°/28°Summer 74°/46°Fall 51°/31°
Right now
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Sunrise 9:16 am · sunset 7:09 pm

Getting the latest forecast from the National Weather Service…

What stands out about Marysville’s weather

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

Climate →
Cool summersJuly afternoons average 78°, cooler than 96% of U.S. towns.A dry climateJust 18 inches of rain and melted snow a year, less than 91% of U.S. towns.A long heating seasonMore heating degree days than 95% of U.S. towns.
A normal year

Where today sits in Marysville’s year

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

Full climate →
Winter
32° / 15°
Snow is rare
Spring
50° / 28°
Last frost around Jun 4
Summer
74° / 46°
4 days reach 90° in a normal year
Fall now
51° / 31°
First frost around Sep 14
Pastthe usual first frost (Sep 14). Last frost next spring: Jun 4
Best months to be outside
JunJulAugSep
Highs of 62–84° and lows of 40° or more
When is it wettest?June, with 2.9 inches.Is it warmer than it used to be?+1.5° 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 Marysville.

Town Square →
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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 Marysville itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Austin 1 W, MT (7 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.