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Marcus SD Weather - Clear - 80°F
Clear
80°F
Updated 8:05 pm
Feels Like 77°F
Humidity 58%
Wind ESE 12 mph
Barometer  29.94 in
Dew Point 64°F
Marcus SD Weather - Clear - 27°C
Clear
27°C
Updated 8:05 pm
Feels Like 25°C
Humidity 58%
Wind ESE 19 km/h
Barometer  101.3 kPa
Dew Point 18°C
Marcus, SD Weather and Current Conditionsmarcus sd weather forecast

Marcus, SD Weather Forecast

Marcus South Dakota WeatherMarcus, South Dakota Weather Weather Forecast
14 Day API Marcus, SD Weather Forecast. Note: Our 7 day Marcus, 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.
Marcus, SD Weather Forecast Dated: 805 PM Sat Sep 05 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.

Saturday, September 5, 2026

Mid-Morning
Marcus Weather - 2026-09-05 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Marcus Weather - 2026-09-05 - Afternoon - Scattered Showers
93°F 34°C
Scattered Showers
Early-Evening
Marcus Weather - 2026-09-05 - Evening - Light Rain
84°F 29°C
Light Rain
Very hot with temperatures reaching 93°F 34°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds picking up from ESE at 4 mph 7 km/h to SE at 18 mph 29 km/h. Gusts up to 28 mph 45 km/h.

Sunday, September 6, 2026

Mid-Morning
Marcus Weather - 2026-09-06 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Marcus Weather - 2026-09-06 - Afternoon - Sunny
89°F 31°C
Sunny
Early-Evening
Marcus Weather - 2026-09-06 - Evening - Overcast
90°F 32°C
Overcast
Balmy with temperatures reaching 89°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the SSE to the SE at 13 mph 20 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 7, 2026

Mid-Morning
Marcus Weather - 2026-09-07 - Morning - Cloudy
77°F 25°C
Cloudy
Mid-Afternoon
Marcus Weather - 2026-09-07 - Afternoon - Overcast
88°F 31°C
Overcast
Early-Evening
Marcus Weather - 2026-09-07 - Evening - Partly Cloudy
85°F 30°C
Partly Cloudy
Quite warm around 88°F 31°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds NW at 10 mph 16 km/h.

Tuesday, September 8, 2026

Mid-Morning
Marcus Weather - 2026-09-08 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Marcus Weather - 2026-09-08 - Afternoon - Sunny
78°F 25°C
Sunny
Early-Evening
Marcus Weather - 2026-09-08 - Evening - Sunny
77°F 25°C
Sunny
Mild temperatures up to 78°F 25°C, sunny throughout the day, with lower humidity and steady pressure. Winds easing from NW 23 mph 38 km/h to NE 8 mph 12 km/h.

Wednesday, September 9, 2026

Mid-Morning
Marcus Weather - 2026-09-09 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Marcus Weather - 2026-09-09 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Marcus Weather - 2026-09-09 - Evening - Sunny
78°F 26°C
Sunny
Mild with a high of 77°F 25°C, overcast through the afternoon, turning sunny this evening, with steady humidity and barometric pressure falling. Winds shifting from the NE to the SW at 6 mph 9 km/h.

Thursday, September 10, 2026

Mid-Morning
Marcus Weather - 2026-09-10 - Morning - Cloudy
67°F 19°C
Cloudy
Mid-Afternoon
Marcus Weather - 2026-09-10 - Afternoon - Overcast
83°F 29°C
Overcast
Early-Evening
Marcus Weather - 2026-09-10 - Evening - Overcast
82°F 28°C
Overcast
Warm and summery near 83°F 29°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the WSW to the E at 9 mph 15 km/h.

Friday, September 11, 2026

Mid-Morning
Marcus Weather - 2026-09-11 - Morning - Overcast
74°F 24°C
Overcast
Mid-Afternoon
Marcus Weather - 2026-09-11 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Marcus Weather - 2026-09-11 - Evening - Cloudy
86°F 30°C
Cloudy
Hot and sweltering around 91°F 33°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds picking up from NNW at 3 mph 4 km/h to NNE at 12 mph 19 km/h. Gusts up to 24 mph 39 km/h.

Saturday, September 12, 2026

Mid-Morning
Marcus Weather - 2026-09-12 - Morning - Overcast
58°F 15°C
Overcast
Mid-Afternoon
Marcus Weather - 2026-09-12 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Marcus Weather - 2026-09-12 - Evening - Overcast
64°F 18°C
Overcast
Cool with a high near 63°F 17°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the NE to the ESE at 7 mph 11 km/h.

Sunday, September 13, 2026

Mid-Morning
Marcus Weather - 2026-09-13 - Morning - Scattered Showers
52°F 11°C
Scattered Showers
Mid-Afternoon
Marcus Weather - 2026-09-13 - Afternoon - Overcast
55°F 13°C
Overcast
Early-Evening
Marcus Weather - 2026-09-13 - Evening - Partly Cloudy
62°F 17°C
Partly Cloudy
Brisk around 55°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds ENE at 9 mph 15 km/h.

Monday, September 14, 2026

Mid-Morning
Marcus Weather - 2026-09-14 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Marcus Weather - 2026-09-14 - Afternoon - Overcast
65°F 19°C
Overcast
Early-Evening
Marcus Weather - 2026-09-14 - Evening - Scattered Showers
60°F 16°C
Scattered Showers
Mildly cool near 65°F 19°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds shifting from the SE to the E at 10 mph 15 km/h.

Tuesday, September 15, 2026

Mid-Morning
Marcus Weather - 2026-09-15 - Morning - Scattered Showers
55°F 13°C
Scattered Showers
Mid-Afternoon
Marcus Weather - 2026-09-15 - Afternoon - Cloudy
63°F 17°C
Cloudy
Early-Evening
Marcus Weather - 2026-09-15 - Evening - Overcast
62°F 17°C
Overcast
Comfortable at 63°F 17°C, scattered downpours possible, with lower humidity and steady pressure. Winds turning from the NNE to the E at 8 mph 13 km/h.

Wednesday, September 16, 2026

Mid-Morning
Marcus Weather - 2026-09-16 - Morning - Scattered Showers
58°F 14°C
Scattered Showers
Mid-Afternoon
Marcus Weather - 2026-09-16 - Afternoon - Scattered Showers
60°F 16°C
Scattered Showers
Early-Evening
Marcus Weather - 2026-09-16 - Evening - Scattered Showers
59°F 16°C
Scattered Showers
Cool with a high near 60°F 16°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds E at 11 mph 17 km/h.

Thursday, September 17, 2026

Mid-Morning
Marcus Weather - 2026-09-17 - Morning - Scattered Showers
61°F 16°C
Scattered Showers
Mid-Afternoon
Marcus Weather - 2026-09-17 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Marcus Weather - 2026-09-17 - Evening - Sunny
68°F 20°C
Sunny
Enjoyable around 73°F 23°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds picking up from ESE at 5 mph 8 km/h to ENE at 13 mph 21 km/h. Gusts up to 21 mph 34 km/h.

Friday, September 18, 2026

Mid-Morning
Marcus Weather - 2026-09-18 - Morning - Scattered Showers
63°F 17°C
Scattered Showers
Mid-Afternoon
Marcus Weather - 2026-09-18 - Afternoon - Sunny
76°F 25°C
Sunny
Early-Evening
Marcus Weather - 2026-09-18 - Evening - Sunny
74°F 24°C
Sunny
Mild temperatures up to 76°F 25°C, scattered downpours possible, with lower humidity and barometric pressure falling. Winds swinging from the ESE to the ENE at 12 mph 19 km/h.

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Weather by the Numbers

Sat, 5th
Marcus SD Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 94°F 34°C
Lo: 65°F 18°C
Sunrise 06:16 AM
Sunset 07:18 PM
Wind SE 9 mph15 km/h
Dew Point 68°F20°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 2% *
Humidity 48%
Sun, 6th
Marcus SD Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 93°F 34°C
Lo: 71°F 22°C
Sunrise 06:17 AM
Sunset 07:16 PM
Wind SSE 14 mph23 km/h
Dew Point 52°F11°C
uv Index 7
Barometric Pressure 29.8 in1009 mb
POP 1% *
Humidity 33%
Mon, 7th
Marcus SD Weather - Monday, Sep 7, 2026 - Patchy Rain Nearby
Hi: 89°F 32°C
Lo: 70°F 21°C
Sunrise 06:18 AM
Sunset 07:14 PM
Wind W 15 mph24 km/h
Dew Point 46°F8°C
uv Index 4
Barometric Pressure 29.65 in1004 mb
POP 11% *
Humidity 25%
Tue, 8th
Marcus SD Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 82°F 28°C
Lo: 62°F 17°C
Sunrise 06:20 AM
Sunset 07:12 PM
Wind NW 20 mph33 km/h
Dew Point 36°F2°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 0% *
Humidity 25%
Wed, 9th
Marcus SD Weather - Wednesday, Sep 9, 2026 - Cloudy
Hi: 84°F 29°C
Lo: 61°F 16°C
Sunrise 06:21 AM
Sunset 07:11 PM
Wind SW 4 mph6 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 5% *
Humidity 24%
Thu, 10th
Marcus SD Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 83°F 29°C
Lo: 67°F 19°C
Sunrise 06:22 AM
Sunset 07:09 PM
Wind S 4 mph6 km/h
Dew Point 26°F-4°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 7% *
Humidity 15%
Fri, 11th
Marcus SD Weather - Friday, Sep 11, 2026 - Overcast
Hi: 91°F 33°C
Lo: 73°F 23°C
Sunrise 06:23 AM
Sunset 07:07 PM
Wind N 4 mph6 km/h
Dew Point 21°F-6°C
uv Index 6
Barometric Pressure 29.62 in1003 mb
POP 9% *
Humidity 9%
Sat, 12th
Marcus SD Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 67°F 20°C
Lo: 55°F 13°C
Sunrise 06:24 AM
Sunset 07:05 PM
Wind E 4 mph7 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 11% *
Humidity 46%
Sun, 13th
Marcus SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 62°F 17°C
Lo: 52°F 11°C
Sunrise 06:25 AM
Sunset 07:03 PM
Wind E 7 mph12 km/h
Dew Point 39°F4°C
uv Index 3
Barometric Pressure 30.21 in1023 mb
POP 15% *
Humidity 61%
Mon, 14th
Marcus SD Weather - Monday, Sep 14, 2026 - Overcast
Hi: 65°F 19°C
Lo: 56°F 13°C
Sunrise 06:27 AM
Sunset 07:01 PM
Wind SE 9 mph15 km/h
Dew Point 50°F10°C
uv Index 4
Barometric Pressure 30.03 in1017 mb
POP 16% *
Humidity 65%
Tue, 15th
Marcus SD Weather - Tuesday, Sep 15, 2026 - Patchy Rain Nearby
Hi: 64°F 18°C
Lo: 55°F 13°C
Sunrise 06:28 AM
Sunset 06:59 PM
Wind NNE 12 mph20 km/h
Dew Point 52°F11°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 22% *
Humidity 75%
Wed, 16th
Marcus SD Weather - Wednesday, Sep 16, 2026 - Patchy Rain Nearby
Hi: 60°F 16°C
Lo: 56°F 13°C
Sunrise 06:29 AM
Sunset 06:57 PM
Wind E 9 mph15 km/h
Dew Point 56°F14°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 29% *
Humidity 87%
Thu, 17th
Marcus SD Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 73°F 23°C
Lo: 58°F 14°C
Sunrise 06:30 AM
Sunset 06:55 PM
Wind E 5 mph9 km/h
Dew Point 58°F15°C
uv Index 4
Barometric Pressure 30.03 in1017 mb
POP 16% *
Humidity 71%
Fri, 18th
Marcus SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 76°F 25°C
Lo: 63°F 17°C
Sunrise 06:31 AM
Sunset 06:53 PM
Wind SE 12 mph19 km/h
Dew Point 59°F15°C
uv Index 5
Barometric Pressure 29.83 in1010 mb
POP 19% *
Humidity 72%
* POP = Probability of Precipitation. Data for 12:00 PM.