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Weather in Mountain Home AFB, ID · National Weather Service + NOAA

Mountain Home AFB has hot summers

Mountain Home AFB has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 94°, a January night drops to 25°. In November, a normal day reaches 51° and a normal night drops to 30°.

Winter 43°/26°Spring 64°/39°Summer 90°/57°Fall 66°/39°
Right now
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Sunrise 7:23 am · sunset 5:30 pm

Getting the latest forecast from the National Weather Service…

What stands out about Mountain Home AFB’s weather

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

Climate →
Hot summersJuly afternoons average 94°, hotter than 94% of U.S. towns.A dry climateJust 9 inches of rain and melted snow a year, less than 99% of U.S. towns.Plenty of 90° daysAbout 65 days a year reach 90°.
A normal year

Where today sits in Mountain Home AFB’s year

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

Full climate →
Winter
43° / 26°
Snow is rare
Spring
64° / 39°
Last frost around May 2
Summer
90° / 57°
65 days reach 90° in a normal year
Fall now
66° / 39°
First frost around Oct 8
Pastthe usual first frost (Oct 8). Last frost next spring: May 2
Best months to be outside
MayJunSep
Highs of 62–84° and lows of 40° or more
When is it wettest?December, with 1.2 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 Mountain Home AFB.

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 Mountain Home AFB itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Mtn Home, ID (9 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.