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Mellette SD Weather - Clear - 75°F
Clear
75°F
Updated 1:28 am
Feels Like 76°F
Humidity 88%
Wind ESE 10 mph
Barometer  29.91 in
Dew Point 71°F
Mellette SD Weather - Clear - 24°C
Clear
24°C
Updated 1:28 am
Feels Like 24°C
Humidity 88%
Wind ESE 16 km/h
Barometer  101.2 kPa
Dew Point 22°C
Mellette, SD Weather and Current Conditionsmellette sd weather forecast

Mellette, SD Weather Forecast

Mellette South Dakota WeatherMellette, South Dakota Weather Weather Forecast
14 Day API Mellette, SD Weather Forecast. Note: Our 7 day Mellette, 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.
Mellette, SD Weather Forecast Dated: 128 AM Sun Sep 06 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 6, 2026

Mid-Morning
Mellette Weather - 2026-09-06 - Morning - Nearby Thunderstorms
73°F 23°C
Nearby Thunderstorms
Mid-Afternoon
Mellette Weather - 2026-09-06 - Afternoon - Scattered Showers
87°F 30°C
Scattered Showers
Early-Evening
Mellette Weather - 2026-09-06 - Evening - Scattered Showers
72°F 23°C
Scattered Showers
Warm and summery near 87°F 30°C, periods of heavy thunderstorms, with steady humidity and steady pressure. Winds picking up from ENE at 8 mph 12 km/h to ESE at 21 mph 34 km/h. Gusts up to 35 mph 56 km/h.

Monday, September 7, 2026

Mid-Morning
Mellette Weather - 2026-09-07 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Mellette Weather - 2026-09-07 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Mellette Weather - 2026-09-07 - Evening - Nearby Thunderstorms
88°F 31°C
Nearby Thunderstorms
Balmy with temperatures reaching 83°F 28°C, locally heavy thunderstorms at times, with lower humidity and barometric pressure falling. Winds switching from the SSE to the E at 11 mph 17 km/h.

Tuesday, September 8, 2026

Mid-Morning
Mellette Weather - 2026-09-08 - Morning - Cloudy
73°F 23°C
Cloudy
Mid-Afternoon
Mellette Weather - 2026-09-08 - Afternoon - Sunny
85°F 29°C
Sunny
Early-Evening
Mellette Weather - 2026-09-08 - Evening - Sunny
80°F 27°C
Sunny
Quite warm around 85°F 29°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the NW to the WNW at 12 mph 19 km/h.

Wednesday, September 9, 2026

Mid-Morning
Mellette Weather - 2026-09-09 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Mellette Weather - 2026-09-09 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Mellette Weather - 2026-09-09 - Evening - Partly Cloudy
77°F 25°C
Partly Cloudy
Mild temperatures up to 78°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the WNW to the W at 12 mph 18 km/h. Gusts up to 20 mph 32 km/h.

Thursday, September 10, 2026

Mid-Morning
Mellette Weather - 2026-09-10 - Morning - Overcast
64°F 18°C
Overcast
Mid-Afternoon
Mellette Weather - 2026-09-10 - Afternoon - Overcast
86°F 30°C
Overcast
Early-Evening
Mellette Weather - 2026-09-10 - Evening - Overcast
85°F 30°C
Overcast
Very warm with a high of 86°F 30°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the S to the SSW at 6 mph 10 km/h.

Friday, September 11, 2026

Mid-Morning
Mellette Weather - 2026-09-11 - Morning - Partly Cloudy
64°F 18°C
Partly Cloudy
Mid-Afternoon
Mellette Weather - 2026-09-11 - Afternoon - Overcast
79°F 26°C
Overcast
Early-Evening
Mellette Weather - 2026-09-11 - Evening - Sunny
71°F 22°C
Sunny
Pleasant near 79°F 26°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds turning from the NE to the N at 17 mph 27 km/h. Gusts up to 25 mph 40 km/h.

Saturday, September 12, 2026

Mid-Morning
Mellette Weather - 2026-09-12 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Mellette Weather - 2026-09-12 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Mellette Weather - 2026-09-12 - Evening - Sunny
64°F 18°C
Sunny
Comfortable at 67°F 19°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds easing from NW 17 mph 27 km/h to SE 8 mph 12 km/h.

Sunday, September 13, 2026

Mid-Morning
Mellette Weather - 2026-09-13 - Morning - Light Showers
47°F 9°C
Light Showers
Mid-Afternoon
Mellette Weather - 2026-09-13 - Afternoon - Light Showers
45°F 7°C
Light Showers
Early-Evening
Mellette Weather - 2026-09-13 - Evening - Light Showers
45°F 7°C
Light Showers
Crisp with a high near 45°F 7°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds moving from the ENE to the NNE at 10 mph 17 km/h.

Monday, September 14, 2026

Mid-Morning
Mellette Weather - 2026-09-14 - Morning - Scattered Showers
46°F 8°C
Scattered Showers
Mid-Afternoon
Mellette Weather - 2026-09-14 - Afternoon - Overcast
55°F 13°C
Overcast
Early-Evening
Mellette Weather - 2026-09-14 - Evening - Overcast
54°F 13°C
Overcast
Brisk around 55°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure.

Tuesday, September 15, 2026

Mid-Morning
Mellette Weather - 2026-09-15 - Morning - Sunny
51°F 11°C
Sunny
Mid-Afternoon
Mellette Weather - 2026-09-15 - Afternoon - Sunny
65°F 19°C
Sunny
Early-Evening
Mellette Weather - 2026-09-15 - Evening - Sunny
65°F 18°C
Sunny
Mildly cool near 65°F 19°C, sunny throughout the day, with lower humidity and barometric pressure falling.

Wednesday, September 16, 2026

Mid-Morning
Mellette Weather - 2026-09-16 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Mellette Weather - 2026-09-16 - Afternoon - Partly Cloudy
72°F 22°C
Partly Cloudy
Early-Evening
Mellette Weather - 2026-09-16 - Evening - Cloudy
72°F 22°C
Cloudy
Pleasant near 72°F 22°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the E at 11 mph 17 km/h. Gusts up to 20 mph 33 km/h.

Thursday, September 17, 2026

Mid-Morning
Mellette Weather - 2026-09-17 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
Mellette Weather - 2026-09-17 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Mellette Weather - 2026-09-17 - Evening - Sunny
75°F 24°C
Sunny
Comfortable with temperatures reaching 73°F 23°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the ENE to the SE at 8 mph 13 km/h.

Friday, September 18, 2026

Mid-Morning
Mellette Weather - 2026-09-18 - Morning - Light Showers
57°F 14°C
Light Showers
Mid-Afternoon
Mellette Weather - 2026-09-18 - Afternoon - Overcast
67°F 19°C
Overcast
Early-Evening
Mellette Weather - 2026-09-18 - Evening - Scattered Showers
67°F 20°C
Scattered Showers
Refreshing around 67°F 19°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds blowing from the SSE at 24 mph 39 km/h. Gusts up to 43 mph 69 km/h.

Saturday, September 19, 2026

Mid-Morning
Mellette Weather - 2026-09-19 - Morning - Scattered Showers
62°F 17°C
Scattered Showers
Mid-Afternoon
Mellette Weather - 2026-09-19 - Afternoon - Sunny
74°F 24°C
Sunny
Early-Evening
Mellette Weather - 2026-09-19 - Evening - Sunny
74°F 24°C
Sunny
Mild temperatures up to 74°F 24°C, scattered downpours possible, with lower humidity and steady pressure. Winds switching from the NNW to the WNW at 4 mph 6 km/h.

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Weather by the Numbers

Sun, 6th
Mellette SD Weather - Sunday, Sep 6, 2026 - Thundery Outbreaks In Nearby
Hi: 90°F 32°C
Lo: 69°F 21°C
Sunrise 07:03 AM
Sunset 08:02 PM
Wind SE 10 mph17 km/h
Dew Point 64°F18°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 12% *
Humidity 52%
Mon, 7th
Mellette SD Weather - Monday, Sep 7, 2026 - Patchy Rain Nearby
Hi: 91°F 33°C
Lo: 65°F 18°C
Sunrise 07:04 AM
Sunset 08:00 PM
Wind S 18 mph30 km/h
Dew Point 63°F17°C
uv Index 5
Barometric Pressure 29.74 in1007 mb
POP 20% *
Humidity 64%
Tue, 8th
Mellette SD Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 85°F 29°C
Lo: 71°F 21°C
Sunrise 07:05 AM
Sunset 07:59 PM
Wind WNW 17 mph27 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 23%
Wed, 9th
Mellette SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 79°F 26°C
Lo: 64°F 18°C
Sunrise 07:06 AM
Sunset 07:57 PM
Wind WNW 15 mph24 km/h
Dew Point 40°F5°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 0% *
Humidity 30%
Thu, 10th
Mellette SD Weather - Thursday, Sep 10, 2026 - Cloudy
Hi: 89°F 32°C
Lo: 64°F 18°C
Sunrise 07:07 AM
Sunset 07:55 PM
Wind SW 8 mph13 km/h
Dew Point 34°F1°C
uv Index 6
Barometric Pressure 29.77 in1008 mb
POP 6% *
Humidity 20%
Fri, 11th
Mellette SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 81°F 27°C
Lo: 63°F 17°C
Sunrise 07:09 AM
Sunset 07:53 PM
Wind NE 17 mph27 km/h
Dew Point 47°F8°C
uv Index 6
Barometric Pressure 29.56 in1001 mb
POP 6% *
Humidity 42%
Sat, 12th
Mellette SD Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 68°F 20°C
Lo: 49°F 9°C
Sunrise 07:10 AM
Sunset 07:51 PM
Wind NW 15 mph23 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 35%
Sun, 13th
Mellette SD Weather - Sunday, Sep 13, 2026 - Light Rain Shower
Hi: 57°F 14°C
Lo: 44°F 7°C
Sunrise 07:11 AM
Sunset 07:49 PM
Wind NE 11 mph17 km/h
Dew Point 44°F7°C
uv Index 2
Barometric Pressure 30.15 in1021 mb
POP 52% *
Humidity 91%
Mon, 14th
Mellette SD Weather - Monday, Sep 14, 2026 - Overcast
Hi: 56°F 13°C
Lo: 44°F 7°C
Sunrise 07:12 AM
Sunset 07:47 PM
Wind NNW 5 mph9 km/h
Dew Point 40°F4°C
uv Index 3
Barometric Pressure 30.33 in1027 mb
POP 17% *
Humidity 67%
Tue, 15th
Mellette SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 67°F 19°C
Lo: 48°F 9°C
Sunrise 07:13 AM
Sunset 07:45 PM
Wind SW 4 mph6 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 30.36 in1028 mb
POP 1% *
Humidity 39%
Wed, 16th
Mellette SD Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 74°F 23°C
Lo: 52°F 11°C
Sunrise 07:15 AM
Sunset 07:44 PM
Wind SSE 12 mph19 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 3% *
Humidity 36%
Thu, 17th
Mellette SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 77°F 25°C
Lo: 56°F 13°C
Sunrise 07:16 AM
Sunset 07:42 PM
Wind E 8 mph13 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 53%
Fri, 18th
Mellette SD Weather - Friday, Sep 18, 2026 - Light Rain Shower
Hi: 68°F 20°C
Lo: 55°F 13°C
Sunrise 07:17 AM
Sunset 07:40 PM
Wind SSE 24 mph39 km/h
Dew Point 48°F9°C
uv Index 4
Barometric Pressure 29.71 in1006 mb
POP 22% *
Humidity 60%
Sat, 19th
Mellette SD Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 77°F 25°C
Lo: 61°F 16°C
Sunrise 07:18 AM
Sunset 07:38 PM
Wind NNW 9 mph14 km/h
Dew Point 42°F5°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 39%
* POP = Probability of Precipitation. Data for 12:00 PM.