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Mellette County SD Weather - Clear - 53°F
Clear
53°F
Updated 9:01 pm
Feels Like 46°F
Humidity 76%
Wind S 9 mph
Barometer  29.87 in
Dew Point 46°F
Mellette County SD Weather - Clear - 12°C
Clear
12°C
Updated 9:01 pm
Feels Like 8°C
Humidity 76%
Wind S 14 km/h
Barometer  101.1 kPa
Dew Point 8°C
Mellette County, SD Weather and Current Conditionsmellette county sd weather forecast

Mellette County, SD Weather Forecast

Mellette County South Dakota WeatherMellette County, South Dakota Weather Weather Forecast
14 day API forecast for Mellette County, South Dakota. Note. The 7-day weather forecast for Mellette County, SD is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Mellette County, SD Weather Forecast Dated: 901 PM Tue Oct 27 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.

Tuesday, October 27, 2026

Mid-Morning
Mellette County Weather - 2026-10-27 - Morning - Sunny
36°F 2°C
Sunny
Mid-Afternoon
Mellette County Weather - 2026-10-27 - Afternoon - Sunny
62°F 17°C
Sunny
Early-Evening
Mellette County Weather - 2026-10-27 - Evening - Sunny
53°F 12°C
Sunny
Refreshing around 62°F 17°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SE to the S at 8 mph 12 km/h.

Wednesday, October 28, 2026

Mid-Morning
Mellette County Weather - 2026-10-28 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
Mellette County Weather - 2026-10-28 - Afternoon - Sunny
62°F 17°C
Sunny
Early-Evening
Mellette County Weather - 2026-10-28 - Evening - Sunny
53°F 12°C
Sunny
Mildly cool near 62°F 17°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds switching from the SSW to the ESE at 5 mph 8 km/h.

Thursday, October 29, 2026

Mid-Morning
Mellette County Weather - 2026-10-29 - Morning - Sunny
44°F 7°C
Sunny
Mid-Afternoon
Mellette County Weather - 2026-10-29 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Mellette County Weather - 2026-10-29 - Evening - Sunny
56°F 13°C
Sunny
Comfortable at 64°F 18°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds S at 14 mph 22 km/h. Gusts up to 25 mph 40 km/h.

Friday, October 30, 2026

Mid-Morning
Mellette County Weather - 2026-10-30 - Morning - Partly Cloudy
48°F 9°C
Partly Cloudy
Mid-Afternoon
Mellette County Weather - 2026-10-30 - Afternoon - Overcast
64°F 18°C
Overcast
Early-Evening
Mellette County Weather - 2026-10-30 - Evening - Overcast
56°F 14°C
Overcast
Cool with a high near 64°F 18°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the SE to the ESE at 10 mph 16 km/h. Gusts up to 20 mph 33 km/h.

Saturday, October 31, 2026

Mid-Morning
Mellette County Weather - 2026-10-31 - Morning - Overcast
53°F 12°C
Overcast
Mid-Afternoon
Mellette County Weather - 2026-10-31 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Mellette County Weather - 2026-10-31 - Evening - Overcast
61°F 16°C
Overcast
Mild with a high of 68°F 20°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds blowing from the S at 9 mph 15 km/h.

Sunday, November 1, 2026

Mid-Morning
Mellette County Weather - 2026-11-01 - Morning - Overcast
58°F 14°C
Overcast
Mid-Afternoon
Mellette County Weather - 2026-11-01 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
Mellette County Weather - 2026-11-01 - Evening - Overcast
61°F 16°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds turning from the S to the SSE at 12 mph 20 km/h. Gusts up to 31 mph 49 km/h.

Monday, November 2, 2026

Mid-Morning
Mellette County Weather - 2026-11-02 - Morning - Drizzle
52°F 11°C
Drizzle
Mid-Afternoon
Mellette County Weather - 2026-11-02 - Afternoon - Light Showers
52°F 11°C
Light Showers
Early-Evening
Mellette County Weather - 2026-11-02 - Evening - Light Showers
50°F 10°C
Light Showers
Chilly near 52°F 11°C, rounds of showers expected off and on all day, with lower humidity and barometric pressure rising. Winds picking up from NNW at 9 mph 14 km/h to NNW at 19 mph 31 km/h. Gusts up to 33 mph 52 km/h.

Tuesday, November 3, 2026

Mid-Morning
Mellette County Weather - 2026-11-03 - Morning - Partly Cloudy
45°F 7°C
Partly Cloudy
Mid-Afternoon
Mellette County Weather - 2026-11-03 - Afternoon - Partly Cloudy
47°F 9°C
Partly Cloudy
Early-Evening
Mellette County Weather - 2026-11-03 - Evening - Clear
43°F 6°C
Clear
Crisp with a high near 47°F 9°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds tapering down from NW 13 mph 22 km/h to WNW 4 mph 7 km/h.

Wednesday, November 4, 2026

Mid-Morning
Mellette County Weather - 2026-11-04 - Morning - Scattered Showers
43°F 6°C
Scattered Showers
Mid-Afternoon
Mellette County Weather - 2026-11-04 - Afternoon - Scattered Showers
47°F 8°C
Scattered Showers
Early-Evening
Mellette County Weather - 2026-11-04 - Evening - Scattered Showers
43°F 6°C
Scattered Showers
Brisk around 47°F 8°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds NW at 13 mph 21 km/h. Gusts up to 29 mph 46 km/h.

Thursday, November 5, 2026

Mid-Morning
Mellette County Weather - 2026-11-05 - Morning - Partly Cloudy
42°F 5°C
Partly Cloudy
Mid-Afternoon
Mellette County Weather - 2026-11-05 - Afternoon - Scattered Showers
48°F 9°C
Scattered Showers
Early-Evening
Mellette County Weather - 2026-11-05 - Evening - Scattered Showers
44°F 7°C
Scattered Showers
Cool and brisk at 48°F 9°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.

Friday, November 6, 2026

Mid-Morning
Mellette County Weather - 2026-11-06 - Morning - Cloudy
47°F 8°C
Cloudy
Mid-Afternoon
Mellette County Weather - 2026-11-06 - Afternoon - Overcast
55°F 13°C
Overcast
Early-Evening
Mellette County Weather - 2026-11-06 - Evening - Overcast
52°F 12°C
Overcast
Chilly near 55°F 13°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling.

Saturday, November 7, 2026

Mid-Morning
Mellette County Weather - 2026-11-07 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Mellette County Weather - 2026-11-07 - Afternoon - Overcast
51°F 11°C
Overcast
Early-Evening
Mellette County Weather - 2026-11-07 - Evening - Cloudy
48°F 9°C
Cloudy
Crisp with a high near 51°F 11°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.

Sunday, November 8, 2026

Mid-Morning
Mellette County Weather - 2026-11-08 - Morning - Cloudy
48°F 9°C
Cloudy
Mid-Afternoon
Mellette County Weather - 2026-11-08 - Afternoon - Partly Cloudy
54°F 12°C
Partly Cloudy
Early-Evening
Mellette County Weather - 2026-11-08 - Evening - Partly Cloudy
50°F 10°C
Partly Cloudy
Brisk around 54°F 12°C, cloudy throughout the day, with steady humidity and steady pressure. Winds shifting from the W to the SW at 8 mph 12 km/h. Gusts up to 28 mph 44 km/h.

Monday, November 9, 2026

Mid-Morning
Mellette County Weather - 2026-11-09 - Morning - Partly Cloudy
46°F 8°C
Partly Cloudy
Mid-Afternoon
Mellette County Weather - 2026-11-09 - Afternoon - Overcast
49°F 9°C
Overcast
Early-Evening
Mellette County Weather - 2026-11-09 - Evening - Overcast
42°F 6°C
Overcast
Cool and brisk at 49°F 9°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure rising. Winds building from NNE at 1 mph 1 km/h to NNW at 9 mph 14 km/h.

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Weather by the Numbers

Tue, 27th
Mellette County SD Weather - Tuesday, Oct 27, 2026 - Sunny
Hi: 66°F 19°C
Lo: 33°F 1°C
Sunrise 08:12 AM
Sunset 06:41 PM
Wind S 15 mph24 km/h
Dew Point 44°F7°C
uv Index 2
Barometric Pressure 29.91 in1013 mb
POP 11% *
Humidity 84%
Wed, 28th
Mellette County SD Weather - Wednesday, Oct 28, 2026 - Cloudy
Hi: 62°F 17°C
Lo: 47°F 9°C
Sunrise 08:13 AM
Sunset 06:39 PM
Wind NW 13 mph22 km/h
Dew Point 42°F6°C
uv Index 2
Barometric Pressure 29.85 in1011 mb
POP 11% *
Humidity 56%
Thu, 29th
Mellette County SD Weather - Thursday, Oct 29, 2026 - Partly Cloudy
Hi: 67°F 19°C
Lo: 42°F 6°C
Sunrise 08:15 AM
Sunset 06:38 PM
Wind SSE 14 mph22 km/h
Dew Point 32°F0°C
uv Index 2
Barometric Pressure 30.12 in1020 mb
POP 4% *
Humidity 37%
Fri, 30th
Mellette County SD Weather - Friday, Oct 30, 2026 - Overcast
Hi: 64°F 18°C
Lo: 45°F 7°C
Sunrise 08:16 AM
Sunset 06:36 PM
Wind SE 9 mph15 km/h
Dew Point 46°F8°C
uv Index 2
Barometric Pressure 30.09 in1019 mb
POP 14% *
Humidity 59%
Sat, 31st
Mellette County SD Weather - Saturday, Oct 31, 2026 - Overcast
Hi: 69°F 21°C
Lo: 53°F 12°C
Sunrise 08:17 AM
Sunset 06:35 PM
Wind S 9 mph15 km/h
Dew Point 53°F12°C
uv Index 2
Barometric Pressure 29.94 in1014 mb
POP 17% *
Humidity 68%
Sun, 1st
Mellette County SD Weather - Sunday, Nov 1, 2026 - Cloudy
Hi: 66°F 19°C
Lo: 51°F 10°C
Sunrise 08:19 AM
Sunset 06:34 PM
Wind S 17 mph27 km/h
Dew Point 51°F10°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 9% *
Humidity 57%
Mon, 2nd
Mellette County SD Weather - Monday, Nov 2, 2026 - Light Drizzle
Hi: 59°F 15°C
Lo: 47°F 8°C
Sunrise 07:20 AM
Sunset 05:33 PM
Wind NNW 12 mph19 km/h
Dew Point 49°F9°C
uv Index 3
Barometric Pressure 29.91 in1013 mb
POP 52% *
Humidity 85%
Tue, 3rd
Mellette County SD Weather - Tuesday, Nov 3, 2026 - Partly Cloudy
Hi: 48°F 9°C
Lo: 40°F 4°C
Sunrise 07:22 AM
Sunset 05:31 PM
Wind NNW 13 mph21 km/h
Dew Point 31°F-0°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 5% *
Humidity 52%
Wed, 4th
Mellette County SD Weather - Wednesday, Nov 4, 2026 - Patchy Rain Nearby
Hi: 49°F 10°C
Lo: 39°F 4°C
Sunrise 07:23 AM
Sunset 05:30 PM
Wind NW 14 mph22 km/h
Dew Point 37°F3°C
uv Index 2
Barometric Pressure 30.12 in1020 mb
POP 15% *
Humidity 62%
Thu, 5th
Mellette County SD Weather - Thursday, Nov 5, 2026 - Partly Cloudy
Hi: 49°F 9°C
Lo: 35°F 2°C
Sunrise 07:24 AM
Sunset 05:29 PM
Wind WNW 5 mph9 km/h
Dew Point 32°F0°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 5% *
Humidity 53%
Fri, 6th
Mellette County SD Weather - Friday, Nov 6, 2026 - Overcast
Hi: 55°F 13°C
Lo: 39°F 4°C
Sunrise 07:26 AM
Sunset 05:28 PM
Wind WSW 3 mph5 km/h
Dew Point 41°F5°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 13% *
Humidity 58%
Sat, 7th
Mellette County SD Weather - Saturday, Nov 7, 2026 - Patchy Rain Nearby
Hi: 53°F 11°C
Lo: 44°F 6°C
Sunrise 07:27 AM
Sunset 05:26 PM
Wind NNW 2 mph3 km/h
Dew Point 40°F5°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 16% *
Humidity 62%
Sun, 8th
Mellette County SD Weather - Sunday, Nov 8, 2026 - Partly Cloudy
Hi: 55°F 13°C
Lo: 42°F 5°C
Sunrise 07:28 AM
Sunset 05:25 PM
Wind W 10 mph15 km/h
Dew Point 42°F5°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 8% *
Humidity 61%
Mon, 9th
Mellette County SD Weather - Monday, Nov 9, 2026 - Cloudy
Hi: 52°F 11°C
Lo: 38°F 4°C
Sunrise 07:30 AM
Sunset 05:24 PM
Wind NE 4 mph6 km/h
Dew Point 36°F2°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 8% *
Humidity 53%
* POP = Probability of Precipitation. Data for 12:00 PM.