How is the weather in Fort Thompson, SD?

At 1:05 AM on Wed, Sep 17, 2025 it is cloudy and 67 degrees Fahrenheit, feeling like 67 degrees.

Fort Thompson, SD Weather Forecast and Current Conditions (57339)

67°F
Feels Like 67°F

Humidity 52% Dew Point 48°F Wind WNW 4 MPH Gusts 5 Barometer 29.82 in.757.4 mm

Solar Rad 21 w/m2 UV Index 0

Report from 18.3 miles SSE of central Fort Thompson at 1:05 AM Wed, Sep 17, 2025

Current Weather

67°F
Feels Like 67°F

Humidity 52% Dew Point 48°F Wind WNW 4 MPH Gusts 5 Barometer 29.82 in.757.4 mm

Solar Rad 21 w/m2 UV Index 0

Report from 18.3 miles SSE of central Fort Thompson at 1:05 AM Wed, Sep 17, 2025

Forecast at a Glance

WedSep 17

90%

74°

59°

ThuSep 18

70%

72°

56°

FriSep 19

30%

73°

54°

SatSep 20

10%

79°

57°

SunSep 21

10%

82°

57°

MonSep 22

10%

79°

54°

TueSep 23

10%

80°

This Date in Weather History

1963 - Nearly two and a half inches of rain fell at Yuma AZ in 24 hours. It was the most intense rain for Yuma during the period between 19S09 and 1977.

Fort Thompson 7 Day Weather Forecast Details

Wednesday Sep 17

Day: A chance of showers and thunderstorms before 7am, then showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. East northeast wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Night: Showers and thunderstorms. Mostly cloudy, with a low around 59. East northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Sep 18

Day: Showers and thunderstorms likely. Mostly cloudy, with a high near 72. East southeast wind around 12 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Night: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northwest wind 7 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday Sep 19

Day: A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 73. West northwest wind 7 to 10 mph. Chance of precipitation is 30%.

Night: A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 54. East wind around 7 mph. Chance of precipitation is 30%.

Saturday Sep 20

Day: Mostly sunny, with a high near 79. South southeast wind 6 to 10 mph.

Night: Partly cloudy, with a low around 57. South southeast wind around 7 mph.

Sunday Sep 21

Day: Sunny, with a high near 82.

Night: Partly cloudy, with a low around 57.

Monday Sep 22

Day: Sunny, with a high near 79.

Night: Mostly clear, with a low around 54.

Tuesday Sep 23

Day: Sunny, with a high near 80.

Sun & Moon Monthly

First Light 6:50 AM

Sunrise 7:19 AM

Sunset 7:48 PM

Last Light 8:17 PM

Moonrise 2:30 AM

Moonset 6:12 PM

Moon Phase

Local Parks Weather - Plan Ahead to Enjoy Your Day

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