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Weather in Evanston, WY · National Weather Service + NOAA

Evanston has a dry climate

Evanston has cold winters and pleasant summers, with very little rain. A typical July afternoon reaches 81°, a January night drops to 10°. A typical November afternoon reaches 42°, and nights fall to 18°.

Winter 32°/10°Spring 52°/27°Summer 77°/45°Fall 56°/28°
Right now
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Sunrise 6:56 am · sunset 5:18 pm

Getting the latest forecast from the National Weather Service…

What stands out about Evanston’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 heating seasonMore heating degree days than 90% of U.S. towns.
A normal year

Where today sits in Evanston’s year

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

Full climate →
Winter
32° / 10°
Snow is rare
Spring
52° / 27°
Last frost around Jun 12
Summer
77° / 45°
2 days reach 90° in a normal year
Fall now
56° / 28°
First frost around Sep 12
Pastthe usual first frost (Sep 12). Last frost next spring: Jun 12
Best months to be outside
JunJulAug
Highs of 62–84° and lows of 40° or more
When is it wettest?May, with 1.6 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 Evanston.

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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 Evanston itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Evanston 1 E, WY (1 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.