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Marion SD Weather - Partly Cloudy - 86°F
Partly Cloudy
86°F
Updated 7:15 pm
Feels Like 96°F
Humidity 53%
Wind SE 14 mph
Barometer  29.94 in
Dew Point 67°F
Marion SD Weather - Partly Cloudy - 30°C
Partly Cloudy
30°C
Updated 7:15 pm
Feels Like 35°C
Humidity 53%
Wind SE 23 km/h
Barometer  101.4 kPa
Dew Point 19°C
Marion, SD Weather and Current Conditionsmarion sd weather forecast

Marion, SD Weather Forecast

Marion South Dakota WeatherMarion, South Dakota Weather Weather Forecast
14 day API Marion, SD weather forecast. Note. Our 7-day weather forecast for Marion, South Dakota is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Marion, SD Weather Forecast Dated: 715 PM Sat Sep 05 2026
Expect a very warm period with more clouds than sun and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 5, 2026

Mid-Morning
Marion Weather - 2026-09-05 - Morning - Rain
71°F 21°C
Rain
Mid-Afternoon
Marion Weather - 2026-09-05 - Afternoon - Scattered Showers
92°F 34°C
Scattered Showers
Early-Evening
Marion Weather - 2026-09-05 - Evening - Scattered Showers
87°F 31°C
Scattered Showers
Sizzling hot near 92°F 34°C with a heat index reaching 103°F 40°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds turning from the SE to the E at 11 mph 19 km/h. Gusts up to 20 mph 32 km/h.

Sunday, September 6, 2026

Mid-Morning
Marion Weather - 2026-09-06 - Morning - Overcast
71°F 21°C
Overcast
Mid-Afternoon
Marion Weather - 2026-09-06 - Afternoon - Scattered Showers
68°F 20°C
Scattered Showers
Early-Evening
Marion Weather - 2026-09-06 - Evening - Scattered Showers
72°F 22°C
Scattered Showers
Comfortable with temperatures reaching 68°F 20°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the E at 22 mph 36 km/h. Gusts up to 24 mph 39 km/h.

Monday, September 7, 2026

Mid-Morning
Marion Weather - 2026-09-07 - Morning - Overcast
70°F 21°C
Overcast
Mid-Afternoon
Marion Weather - 2026-09-07 - Afternoon - Overcast
94°F 35°C
Overcast
Early-Evening
Marion Weather - 2026-09-07 - Evening - Scattered Showers
92°F 33°C
Scattered Showers
Sizzling hot with 94°F 35°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds moving from the SE to the SSE at 15 mph 24 km/h. Gusts up to 27 mph 44 km/h.

Tuesday, September 8, 2026

Mid-Morning
Marion Weather - 2026-09-08 - Morning - Scattered Showers
77°F 25°C
Scattered Showers
Mid-Afternoon
Marion Weather - 2026-09-08 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Marion Weather - 2026-09-08 - Evening - Sunny
83°F 29°C
Sunny
Hot temperatures near 92°F 33°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the SSW to the NW at 13 mph 21 km/h. Gusts up to 24 mph 37 km/h.

Wednesday, September 9, 2026

Mid-Morning
Marion Weather - 2026-09-09 - Morning - Cloudy
68°F 20°C
Cloudy
Mid-Afternoon
Marion Weather - 2026-09-09 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Marion Weather - 2026-09-09 - Evening - Overcast
78°F 26°C
Overcast
Very warm with a high of 83°F 28°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds blowing from the NW at 13 mph 20 km/h.

Thursday, September 10, 2026

Mid-Morning
Marion Weather - 2026-09-10 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Marion Weather - 2026-09-10 - Afternoon - Sunny
83°F 28°C
Sunny
Early-Evening
Marion Weather - 2026-09-10 - Evening - Sunny
80°F 27°C
Sunny
Warm and summery near 83°F 28°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.

Friday, September 11, 2026

Mid-Morning
Marion Weather - 2026-09-11 - Morning - Overcast
70°F 21°C
Overcast
Mid-Afternoon
Marion Weather - 2026-09-11 - Afternoon - Overcast
96°F 36°C
Overcast
Early-Evening
Marion Weather - 2026-09-11 - Evening - Overcast
94°F 35°C
Overcast
Hot and sweltering around 96°F 36°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SSE to the SSW at 16 mph 27 km/h. Gusts up to 32 mph 51 km/h.

Saturday, September 12, 2026

Mid-Morning
Marion Weather - 2026-09-12 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Marion Weather - 2026-09-12 - Afternoon - Cloudy
80°F 27°C
Cloudy
Early-Evening
Marion Weather - 2026-09-12 - Evening - Overcast
76°F 25°C
Overcast
Quite warm around 80°F 27°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the ESE to the NNE at 12 mph 19 km/h. Gusts up to 23 mph 36 km/h.

Sunday, September 13, 2026

Mid-Morning
Marion Weather - 2026-09-13 - Morning - Scattered Showers
56°F 13°C
Scattered Showers
Mid-Afternoon
Marion Weather - 2026-09-13 - Afternoon - Scattered Showers
65°F 19°C
Scattered Showers
Early-Evening
Marion Weather - 2026-09-13 - Evening - Overcast
64°F 18°C
Overcast
Refreshing around 65°F 19°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NE to the E at 6 mph 10 km/h.

Monday, September 14, 2026

Mid-Morning
Marion Weather - 2026-09-14 - Morning - Scattered Showers
58°F 15°C
Scattered Showers
Mid-Afternoon
Marion Weather - 2026-09-14 - Afternoon - Light Showers
60°F 15°C
Light Showers
Early-Evening
Marion Weather - 2026-09-14 - Evening - Light Showers
60°F 16°C
Light Showers
Mildly cool near 60°F 15°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds ESE at 7 mph 12 km/h.

Tuesday, September 15, 2026

Mid-Morning
Marion Weather - 2026-09-15 - Morning - Light Showers
63°F 17°C
Light Showers
Mid-Afternoon
Marion Weather - 2026-09-15 - Afternoon - Light Showers
73°F 23°C
Light Showers
Early-Evening
Marion Weather - 2026-09-15 - Evening - Scattered Showers
68°F 20°C
Scattered Showers
Pleasant near 73°F 23°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the SE to the E at 8 mph 12 km/h.

Wednesday, September 16, 2026

Mid-Morning
Marion Weather - 2026-09-16 - Morning - Light Fog
72°F 22°C
Light Fog
Mid-Afternoon
Marion Weather - 2026-09-16 - Afternoon - Overcast
81°F 27°C
Overcast
Early-Evening
Marion Weather - 2026-09-16 - Evening - Scattered Showers
75°F 24°C
Scattered Showers
Balmy with temperatures reaching 81°F 27°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds blowing from the SSW at 9 mph 14 km/h.

Thursday, September 17, 2026

Mid-Morning
Marion Weather - 2026-09-17 - Morning - Fog
68°F 20°C
Fog
Mid-Afternoon
Marion Weather - 2026-09-17 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Marion Weather - 2026-09-17 - Evening - Partly Cloudy
77°F 25°C
Partly Cloudy
Quite warm around 82°F 28°C, cloudy in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds switching from the NNE to the ENE at 10 mph 16 km/h.

Friday, September 18, 2026

Mid-Morning
Marion Weather - 2026-09-18 - Morning - Cloudy
70°F 21°C
Cloudy
Mid-Afternoon
Marion Weather - 2026-09-18 - Afternoon - Overcast
90°F 32°C
Overcast
Early-Evening
Marion Weather - 2026-09-18 - Evening - Overcast
85°F 30°C
Overcast
Hot temperatures near 90°F 32°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds out of the ESE at 17 mph 28 km/h. Gusts up to 31 mph 49 km/h.

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Weather by the Numbers

Sat, 5th
Marion SD Weather - Saturday, Sep 5, 2026 - Moderate Rain
Hi: 94°F 34°C
Lo: 71°F 21°C
Sunrise 06:58 AM
Sunset 07:57 PM
Wind S 14 mph22 km/h
Dew Point 67°F19°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 77% *
Humidity 66%
Sun, 6th
Marion SD Weather - Sunday, Sep 6, 2026 - Heavy Rain Shower
Hi: 78°F 26°C
Lo: 66°F 19°C
Sunrise 06:59 AM
Sunset 07:55 PM
Wind NE 10 mph16 km/h
Dew Point 68°F20°C
uv Index 1
Barometric Pressure 29.97 in1015 mb
POP 94% *
Humidity 95%
Mon, 7th
Marion SD Weather - Monday, Sep 7, 2026 - Overcast
Hi: 97°F 36°C
Lo: 70°F 21°C
Sunrise 07:00 AM
Sunset 07:53 PM
Wind SSE 20 mph32 km/h
Dew Point 61°F16°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 11% *
Humidity 47%
Tue, 8th
Marion SD Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 92°F 33°C
Lo: 73°F 23°C
Sunrise 07:01 AM
Sunset 07:52 PM
Wind W 17 mph28 km/h
Dew Point 59°F15°C
uv Index 4
Barometric Pressure 29.8 in1009 mb
POP 1% *
Humidity 36%
Wed, 9th
Marion SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 84°F 29°C
Lo: 66°F 19°C
Sunrise 07:02 AM
Sunset 07:50 PM
Wind NW 13 mph22 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 0% *
Humidity 27%
Thu, 10th
Marion SD Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 84°F 29°C
Lo: 64°F 18°C
Sunrise 07:03 AM
Sunset 07:48 PM
Wind WSW 6 mph9 km/h
Dew Point 40°F4°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 27%
Fri, 11th
Marion SD Weather - Friday, Sep 11, 2026 - Overcast
Hi: 98°F 37°C
Lo: 65°F 18°C
Sunrise 07:04 AM
Sunset 07:46 PM
Wind SSW 14 mph23 km/h
Dew Point 47°F8°C
uv Index 7
Barometric Pressure 29.68 in1005 mb
POP 9% *
Humidity 27%
Sat, 12th
Marion SD Weather - Saturday, Sep 12, 2026 - Partly Cloudy
Hi: 87°F 31°C
Lo: 69°F 20°C
Sunrise 07:05 AM
Sunset 07:44 PM
Wind NE 13 mph20 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 29.71 in1006 mb
POP 5% *
Humidity 41%
Sun, 13th
Marion SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 65°F 19°C
Lo: 53°F 12°C
Sunrise 07:06 AM
Sunset 07:43 PM
Wind NE 10 mph17 km/h
Dew Point 46°F8°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 21% *
Humidity 55%
Mon, 14th
Marion SD Weather - Monday, Sep 14, 2026 - Overcast
Hi: 62°F 17°C
Lo: 58°F 15°C
Sunrise 07:08 AM
Sunset 07:41 PM
Wind ESE 9 mph14 km/h
Dew Point 55°F13°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 44% *
Humidity 88%
Tue, 15th
Marion SD Weather - Tuesday, Sep 15, 2026 - Light Rain Shower
Hi: 75°F 24°C
Lo: 61°F 16°C
Sunrise 07:09 AM
Sunset 07:39 PM
Wind SSE 11 mph17 km/h
Dew Point 65°F19°C
uv Index 4
Barometric Pressure 29.83 in1010 mb
POP 55% *
Humidity 96%
Wed, 16th
Marion SD Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 87°F 30°C
Lo: 69°F 21°C
Sunrise 07:10 AM
Sunset 07:37 PM
Wind SSW 6 mph9 km/h
Dew Point 61°F16°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 50%
Thu, 17th
Marion SD Weather - Thursday, Sep 17, 2026 - Partly Cloudy
Hi: 83°F 29°C
Lo: 65°F 19°C
Sunrise 07:11 AM
Sunset 07:35 PM
Wind NNE 8 mph12 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 6% *
Humidity 65%
Fri, 18th
Marion SD Weather - Friday, Sep 18, 2026 - Cloudy
Hi: 92°F 33°C
Lo: 65°F 18°C
Sunrise 07:12 AM
Sunset 07:34 PM
Wind ESE 16 mph25 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 11% *
Humidity 56%
* POP = Probability of Precipitation. Data for 12:00 PM.