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Weather in Portal, ND · National Weather Service + NOAA

Portal has real winters

Portal has cold winters and pleasant summers, with very little rain. A typical July afternoon reaches 80°, a January night drops to -2°. In November, a normal day reaches 34° and a normal night drops to 15°.

Winter 20°/1°Spring 51°/27°Summer 78°/52°Fall 52°/29°
Right now
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Loading conditions…
Sunrise 8:41 am · sunset 6:26 pm

Getting the latest forecast from the National Weather Service…

What stands out about Portal’s weather

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

Climate →
Real wintersJanuary nights average -2°, colder than 98% of U.S. towns.A short growing season121 frost-free days, from May 20 to Sep 19.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 99% of U.S. towns.
A normal year

Where today sits in Portal’s year

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

Full climate →
Winter
20° / 1°
Snow is rare
Spring
51° / 27°
Last frost around May 20
Summer
78° / 52°
5 days reach 90° in a normal year
Fall now
52° / 29°
First frost around Sep 19
Pastthe usual first frost (Sep 19). Last frost next spring: May 20
Best months to be outside
JunJulAugSep
Highs of 62–84° and lows of 40° or more
When is it wettest?June, with 3.5 inches.Is it warmer than it used to be?+1.3° 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 Portal.

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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 Portal itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Northgate 5 Ese, ND (17 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.