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Clark County SD Weather - Overcast - 52°F
Overcast
52°F
Updated 8:49 am
Feels Like 45°F
Humidity 74%
Wind N 0 mph
Barometer  30.17 in
Dew Point 44°F
Clark County SD Weather - Overcast - 11°C
Overcast
11°C
Updated 8:49 am
Feels Like 7°C
Humidity 74%
Wind N 0 km/h
Barometer  102.1 kPa
Dew Point 7°C
Clark County, SD Weather and Current Conditionsclark county sd weather forecast

Clark County, SD Weather Forecast

Clark County South Dakota WeatherClark County, South Dakota Weather Weather Forecast
14 Day API Clark County, SD Weather Forecast. Note: Our 7 day Clark County, South Dakota weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Clark County, SD Weather Forecast Dated: 849 AM Sun Sep 13 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, September 13, 2026

Mid-Morning
Clark County Weather - 2026-09-13 - Morning - Overcast
53°F 12°C
Overcast
Mid-Afternoon
Clark County Weather - 2026-09-13 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Clark County Weather - 2026-09-13 - Evening - Overcast
67°F 19°C
Overcast
Pleasant near 71°F 22°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds turning from the NE to the SE at 8 mph 13 km/h.

Monday, September 14, 2026

Mid-Morning
Clark County Weather - 2026-09-14 - Morning - Rain
51°F 10°C
Rain
Mid-Afternoon
Clark County Weather - 2026-09-14 - Afternoon - Scattered Showers
58°F 14°C
Scattered Showers
Early-Evening
Clark County Weather - 2026-09-14 - Evening - Overcast
64°F 18°C
Overcast
Mildly cool near 58°F 14°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds tapering down from SE 19 mph 31 km/h to W 9 mph 14 km/h.

Tuesday, September 15, 2026

Mid-Morning
Clark County Weather - 2026-09-15 - Morning - Sunny
47°F 8°C
Sunny
Mid-Afternoon
Clark County Weather - 2026-09-15 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
Clark County Weather - 2026-09-15 - Evening - Sunny
62°F 17°C
Sunny
Comfortable at 63°F 17°C, sunny throughout the day, with lower humidity and steady pressure. Winds decreasing from NW 14 mph 22 km/h to NE 6 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
Clark County Weather - 2026-09-16 - Morning - Overcast
51°F 11°C
Overcast
Mid-Afternoon
Clark County Weather - 2026-09-16 - Afternoon - Light Showers
59°F 15°C
Light Showers
Early-Evening
Clark County Weather - 2026-09-16 - Evening - Light Showers
50°F 10°C
Light Showers
Cool with a high near 59°F 15°C, drier morning followed by showers lasting through evening, with increasing humidity and steady pressure. Winds swinging from the SE to the E at 9 mph 14 km/h.

Thursday, September 17, 2026

Mid-Morning
Clark County Weather - 2026-09-17 - Morning - Scattered Showers
51°F 11°C
Scattered Showers
Mid-Afternoon
Clark County Weather - 2026-09-17 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Clark County Weather - 2026-09-17 - Evening - Sunny
72°F 22°C
Sunny
Mild with a high of 70°F 21°C, scattered downpours possible, with lower humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
Clark County Weather - 2026-09-18 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Clark County Weather - 2026-09-18 - Afternoon - Overcast
65°F 18°C
Overcast
Early-Evening
Clark County Weather - 2026-09-18 - Evening - Scattered Showers
55°F 13°C
Scattered Showers
Mildly cool near 65°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the ESE to the E at 13 mph 20 km/h. Gusts up to 22 mph 36 km/h.

Saturday, September 19, 2026

Mid-Morning
Clark County Weather - 2026-09-19 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Clark County Weather - 2026-09-19 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
Clark County Weather - 2026-09-19 - Evening - Overcast
69°F 21°C
Overcast
Comfortable at 66°F 19°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds turning from the NE to the ESE at 6 mph 10 km/h.

Sunday, September 20, 2026

Mid-Morning
Clark County Weather - 2026-09-20 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Clark County Weather - 2026-09-20 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Clark County Weather - 2026-09-20 - Evening - Sunny
70°F 22°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the NE to the ESE at 9 mph 14 km/h.

Monday, September 21, 2026

Mid-Morning
Clark County Weather - 2026-09-21 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Clark County Weather - 2026-09-21 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Clark County Weather - 2026-09-21 - Evening - Sunny
66°F 19°C
Sunny
Mild temperatures up to 70°F 21°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the SSE to the SE at 11 mph 18 km/h.

Tuesday, September 22, 2026

Mid-Morning
Clark County Weather - 2026-09-22 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Clark County Weather - 2026-09-22 - Afternoon - Overcast
69°F 21°C
Overcast
Early-Evening
Clark County Weather - 2026-09-22 - Evening - Sunny
66°F 19°C
Sunny
Mild with a high of 69°F 21°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the S to the SE at 9 mph 14 km/h.

Wednesday, September 23, 2026

Mid-Morning
Clark County Weather - 2026-09-23 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Clark County Weather - 2026-09-23 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Clark County Weather - 2026-09-23 - Evening - Overcast
65°F 19°C
Overcast
Pleasant near 69°F 21°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds shifting from the SSE to the SE at 13 mph 21 km/h. Gusts up to 24 mph 39 km/h.

Thursday, September 24, 2026

Mid-Morning
Clark County Weather - 2026-09-24 - Morning - Cloudy
58°F 15°C
Cloudy
Mid-Afternoon
Clark County Weather - 2026-09-24 - Afternoon - Scattered Showers
73°F 23°C
Scattered Showers
Early-Evening
Clark County Weather - 2026-09-24 - Evening - Partly Cloudy
74°F 24°C
Partly Cloudy
Comfortable with temperatures reaching 73°F 23°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds blowing from the SSW at 21 mph 34 km/h. Gusts up to 25 mph 40 km/h.

Friday, September 25, 2026

Mid-Morning
Clark County Weather - 2026-09-25 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Clark County Weather - 2026-09-25 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Clark County Weather - 2026-09-25 - Evening - Sunny
72°F 22°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure rising. Winds switching from the WNW to the SE at 7 mph 12 km/h.

Saturday, September 26, 2026

Mid-Morning
Clark County Weather - 2026-09-26 - Morning - Scattered Showers
60°F 16°C
Scattered Showers
Mid-Afternoon
Clark County Weather - 2026-09-26 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Clark County Weather - 2026-09-26 - Evening - Sunny
81°F 28°C
Sunny
Mild temperatures up to 78°F 26°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds moving from the E to the SE at 14 mph 22 km/h. Gusts up to 26 mph 42 km/h.

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Weather by the Numbers

Sun, 13th
Clark County SD Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 71°F 22°C
Lo: 51°F 10°C
Sunrise 07:07 AM
Sunset 07:45 PM
Wind ENE 8 mph12 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 33%
Mon, 14th
Clark County SD Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 68°F 20°C
Lo: 50°F 10°C
Sunrise 07:09 AM
Sunset 07:44 PM
Wind SSE 22 mph36 km/h
Dew Point 53°F11°C
uv Index 0
Barometric Pressure 29.77 in1008 mb
POP 71% *
Humidity 93%
Tue, 15th
Clark County SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 63°F 17°C
Lo: 46°F 8°C
Sunrise 07:10 AM
Sunset 07:42 PM
Wind NNW 11 mph18 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 47%
Wed, 16th
Clark County SD Weather - Wednesday, Sep 16, 2026 - Overcast
Hi: 64°F 18°C
Lo: 48°F 9°C
Sunrise 07:11 AM
Sunset 07:40 PM
Wind SE 15 mph24 km/h
Dew Point 40°F5°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 11% *
Humidity 47%
Thu, 17th
Clark County SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 75°F 24°C
Lo: 50°F 10°C
Sunrise 07:12 AM
Sunset 07:38 PM
Wind N 9 mph14 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 4% *
Humidity 62%
Fri, 18th
Clark County SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 66°F 19°C
Lo: 52°F 11°C
Sunrise 07:13 AM
Sunset 07:36 PM
Wind SE 11 mph18 km/h
Dew Point 55°F13°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 19% *
Humidity 71%
Sat, 19th
Clark County SD Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 70°F 21°C
Lo: 52°F 11°C
Sunrise 07:15 AM
Sunset 07:34 PM
Wind NE 8 mph13 km/h
Dew Point 49°F9°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 16% *
Humidity 68%
Sun, 20th
Clark County SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 73°F 23°C
Lo: 61°F 16°C
Sunrise 07:16 AM
Sunset 07:32 PM
Wind NE 7 mph11 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 38%
Mon, 21st
Clark County SD Weather - Monday, Sep 21, 2026 - Sunny
Hi: 71°F 22°C
Lo: 58°F 15°C
Sunrise 07:17 AM
Sunset 07:30 PM
Wind SSE 12 mph19 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 46%
Tue, 22nd
Clark County SD Weather - Tuesday, Sep 22, 2026 - Overcast
Hi: 70°F 21°C
Lo: 57°F 14°C
Sunrise 07:18 AM
Sunset 07:28 PM
Wind SSE 8 mph13 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 11% *
Humidity 48%
Wed, 23rd
Clark County SD Weather - Wednesday, Sep 23, 2026 - Overcast
Hi: 70°F 21°C
Lo: 57°F 14°C
Sunrise 07:19 AM
Sunset 07:26 PM
Wind SSE 14 mph22 km/h
Dew Point 35°F2°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 35%
Thu, 24th
Clark County SD Weather - Thursday, Sep 24, 2026 - Overcast
Hi: 76°F 24°C
Lo: 54°F 12°C
Sunrise 07:21 AM
Sunset 07:24 PM
Wind S 23 mph36 km/h
Dew Point 52°F11°C
uv Index 4
Barometric Pressure 29.68 in1005 mb
POP 14% *
Humidity 65%
Fri, 25th
Clark County SD Weather - Friday, Sep 25, 2026 - Sunny
Hi: 74°F 23°C
Lo: 62°F 16°C
Sunrise 07:22 AM
Sunset 07:23 PM
Wind N 14 mph22 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 2% *
Humidity 50%
Sat, 26th
Clark County SD Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 85°F 29°C
Lo: 59°F 15°C
Sunrise 07:23 AM
Sunset 07:21 PM
Wind SE 19 mph31 km/h
Dew Point 51°F10°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 4% *
Humidity 52%
* POP = Probability of Precipitation. Data for 12:00 PM.