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Weather in Fort Irwin, CA · National Weather Service + NOAA

Fort Irwin has hot summers

Fort Irwin has mild winters and scorching summers, with very little rain. A typical July afternoon reaches 103°, a January night drops to 37°. A typical November afternoon reaches 68°, and nights fall to 44°.

Winter 60°/38°Spring 78°/52°Summer 100°/72°Fall 81°/55°
Right now
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Sunrise 9:11 am · sunset 7:49 pm

Getting the latest forecast from the National Weather Service…

What stands out about Fort Irwin’s weather

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

Climate →
Hot summersJuly afternoons average 103°, hotter than 100% of U.S. towns.Warming faster than mostThe last 30 years averaged 2.2° warmer than the 1900s, a bigger shift than 98% of U.S. towns.A dry climateJust 5 inches of rain and melted snow a year, less than 100% of U.S. towns.
A normal year

Where today sits in Fort Irwin’s year

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

Full climate →
Winter
60° / 38°
Snow is rare
Spring
78° / 52°
Frost is rare by spring
Summer
100° / 72°
90° days are rare
Fall now
81° / 55°
Mild well into the fall
Best months to be outside
FebMarAprOctNov
Highs of 62–84° and lows of 40° or more
When is it wettest?February, with 1.2 inches.Is it warmer than it used to be?+2.2° 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 Fort Irwin.

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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 Fort Irwin itself (about a 3-mile square). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.