St. Marys, ND Weather


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The most pleasant months of the year for St. Marys are June, August and July. In St. Marys, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for St. Marys with an average high temperature of 81.6°, which ranks it as about average compared to other places in North Dakota. January is the snowiest month in St. Marys with 9.2 inches of snow, and 8 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - St. Marys, ND

8 PM PST

Mostly Cloudy then Patchy Fog

27°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightMostly Cloudy then Patchy Fog15° / 37°W 6 to 12 mph
Friday NightPartly Cloudy26° / 45°SW 8 to 14 mph
Saturday NightMostly Cloudy then Slight Chance Light Rain28° / 43°W 7 to 10 mph
Sunday NightLight Snow Likely15° / 23°NW 18 mph
Monday NightSlight Chance Light Snow11° / 25°NW 9 to 14 mph
Tuesday NightSlight Chance Light Snow2° / 16°NW 6 to 14 mph
Wednesday NightSlight Chance Light Snow then Mostly Cloudy4° / 28°W 8 mph

Average Monthly High and Low (°F)
HighLow
January20°
February25°
March37° 18°
April55° 30°
May67° 42°
June75° 52°
July82° 57°
August82° 55°
September70° 44°
October55° 32°
November37° 18°
December23°
Hot, Freezing, Rainy, Snowy Days: St. Marys
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03166
February02754
March02964
April01762
May0491
June20110
July4090
August6080
September1270
October01561
November02754
December03165

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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