How is the weather in Spearfish, SD?

At 11:14 AM on Thu, Sep 18, 2025 it is cloudy and 63 degrees Fahrenheit, feeling like 63 degrees.

Spearfish, SD Weather Forecast and Current Conditions (57783)

63°F
Feels Like 63°F

Humidity 67% Dew Point 52°F Wind E 1 MPH Gusts 3 Barometer 33.45 in.849.6 mm

Solar Rad 333 w/m2 UV Index 3

Report from 1.2 miles S of central Spearfish at 11:14 AM Thu, Sep 18, 2025

Current Weather

63°F
Feels Like 63°F

Humidity 67% Dew Point 52°F Wind E 1 MPH Gusts 3 Barometer 33.45 in.849.6 mm

Solar Rad 333 w/m2 UV Index 3

Report from 1.2 miles S of central Spearfish at 11:14 AM Thu, Sep 18, 2025

Forecast at a Glance

ThuSep 18

10%

62°

46°

FriSep 19

68°

50°

SatSep 20

75°

55°

SunSep 21

78°

51°

MonSep 22

20%

63°

48°

TueSep 23

10%

70°

48°

WedSep 24

71°

49°

This Date in Weather History

1941 - One of the greatest aurora borealis or northern lights ever observed in the central Atlantic and mid-central portions of the U.S. occurred on the night of September 18-19th. The displays continued from twilight until just before dawn and were observed as far south as Florida and southern California.

Spearfish 7 Day Weather Forecast Details

Thursday Sep 18

Day: Areas of drizzle and areas of fog before noon. Partly sunny, with a high near 62. Northeast wind 0 to 10 mph.

Night: Patchy fog after midnight. Partly cloudy, with a low around 46. South wind 0 to 10 mph.

Friday Sep 19

Day: Patchy fog before 9am. Mostly sunny, with a high near 68. Northeast wind 0 to 5 mph.

Night: Partly cloudy, with a low around 50. Southeast wind around 5 mph.

Saturday Sep 20

Day: Sunny. High near 75, with temperatures falling to around 73 in the afternoon. Southeast wind 0 to 5 mph.

Night: Mostly clear, with a low around 55. South wind 5 to 10 mph.

Sunday Sep 21

Day: Sunny, with a high near 78. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

Night: A slight chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 51. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Monday Sep 22

Day: A slight chance of rain showers before noon. Mostly sunny, with a high near 63.

Night: Partly cloudy, with a low around 48.

Tuesday Sep 23

Day: Sunny, with a high near 70.

Night: Mostly clear, with a low around 48.

Wednesday Sep 24

Day: Sunny, with a high near 71.

Night: Mostly clear, with a low around 49.

Sun & Moon Monthly

First Light 6:10 AM

Sunrise 6:39 AM

Sunset 7:02 PM

Last Light 7:31 PM

Moonrise 3:04 AM

Moonset 5:57 PM

Moon Phase

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