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Weather in Ismay, MT · National Weather Service + NOAA

Ismay has a dry climate

Ismay has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 88°, a January night drops to 7°, and about 34 inches of snow falls in a normal winter.

Right now
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Sunrise 6:59 am · sunset 6:37 pm

Getting the latest forecast from the National Weather Service…

What stands out about Ismay’s weather

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

Climate →
A normal year

Where today sits in Ismay’s year

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

Full climate →
Winter
32° / 9°
12 days with an inch or more of snow
Spring
57° / 31°
Last frost around May 21
Summer
84° / 54°
30 days reach 90° in a normal year
Fall now
59° / 32°
First frost around Sep 20

Weather talk

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

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 Ismay itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Plevna, MT (14 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.

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