Grant County, SD Weather


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United States / South Dakota / No Metro Area / Grant County / Cities / Zip Codes

The most pleasant months of the year for Grant County are June, August and July. In Grant County, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Grant County with an average high temperature of 83.0°, which ranks it as cooler than most places in South Dakota. February is the snowiest month in Grant County with 8.0 inches of snow, and 7 months of the year have significant snowfall. But there some days when the humidity becomes unpleasant, especially in July and August.

Today's Weather - Grant, SD

2 AM PST

Mostly Clear

45°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightMostly Clear42° / 55°W 21 mph
Tuesday NightMostly Clear34° / 62°WNW 3 to 17 mph
Wednesday NightMostly Cloudy46° / 70°SSE 10 to 15 mph
Thursday NightShowers And Thunderstorms Likely51° / 62°SE 24 to 29 mph
Friday NightShowers And Thunderstorms48° / 56°NE 16 mph
Saturday NightChance Rain Showers40° / 50°N 16 mph
Sunday NightRain Showers Likely36° / 59°NNW 13 to 18 mph

Weather Highlights

Summer High: the July high is around 83 degrees
Winter Low: the January low is 2
Rain: averages 24 inches of rain a year
Snow: averages 39 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Grant County area is 9.3 (10=best), which means it is more comfortable than most places in South Dakota.

9.3 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January22°
February27°
March39° 19°
April56° 33°
May69° 45°
June78° 55°
July83° 60°
August81° 58°
September72° 48°
October58° 35°
November40° 21°
December25°
Hot, Freezing, Rainy, Snowy Days: Grant
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03154
February02744
March02863
April01471
May0190
June20100
July5090
August3080
September1180
October01270
November02642
December03144

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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