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Seneca SD Weather - Overcast - 66°F
Overcast
66°F
Updated 9:27 pm
Feels Like 69°F
Humidity 88%
Wind E 12 mph
Barometer  30.21 in
Dew Point 62°F
Seneca SD Weather - Overcast - 19°C
Overcast
19°C
Updated 9:27 pm
Feels Like 21°C
Humidity 88%
Wind E 19 km/h
Barometer  102.3 kPa
Dew Point 17°C
Seneca, SD Weather and Current Conditionsseneca sd weather forecast

Seneca, SD Weather Forecast

Seneca South Dakota WeatherSeneca, South Dakota Weather Weather Forecast
14 day API weather forecast for Seneca, South Dakota. Note: The 7-day weather forecast for Seneca, SD is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Seneca, SD Weather Forecast Dated: 927 PM Thu Sep 17 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.

Thursday, September 17, 2026

Mid-Morning
Seneca Weather - 2026-09-17 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Seneca Weather - 2026-09-17 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Seneca Weather - 2026-09-17 - Evening - Overcast
68°F 20°C
Overcast
Pleasant near 71°F 22°C, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the ENE to the SE at 9 mph 14 km/h.

Friday, September 18, 2026

Mid-Morning
Seneca Weather - 2026-09-18 - Morning - Light Showers
53°F 12°C
Light Showers
Mid-Afternoon
Seneca Weather - 2026-09-18 - Afternoon - Scattered Showers
53°F 12°C
Scattered Showers
Early-Evening
Seneca Weather - 2026-09-18 - Evening - Overcast
53°F 12°C
Overcast
Cool and brisk at 53°F 12°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the E to the ENE at 9 mph 14 km/h.

Saturday, September 19, 2026

Mid-Morning
Seneca Weather - 2026-09-19 - Morning - Light Fog
51°F 10°C
Light Fog
Mid-Afternoon
Seneca Weather - 2026-09-19 - Afternoon - Scattered Showers
52°F 11°C
Scattered Showers
Early-Evening
Seneca Weather - 2026-09-19 - Evening - Overcast
54°F 12°C
Overcast
Chilly near 52°F 11°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the NE to the ENE at 10 mph 15 km/h.

Sunday, September 20, 2026

Mid-Morning
Seneca Weather - 2026-09-20 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
Seneca Weather - 2026-09-20 - Afternoon - Scattered Showers
61°F 16°C
Scattered Showers
Early-Evening
Seneca Weather - 2026-09-20 - Evening - Light Showers
55°F 13°C
Light Showers
Cool with a high near 61°F 16°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the ENE to the SE at 5 mph 8 km/h.

Monday, September 21, 2026

Mid-Morning
Seneca Weather - 2026-09-21 - Morning - Scattered Showers
49°F 9°C
Scattered Showers
Mid-Afternoon
Seneca Weather - 2026-09-21 - Afternoon - Overcast
51°F 11°C
Overcast
Early-Evening
Seneca Weather - 2026-09-21 - Evening - Overcast
54°F 12°C
Overcast
Brisk around 51°F 11°C, scattered downpours possible, with lower humidity and steady pressure. Winds blowing from the E at 10 mph 16 km/h.

Tuesday, September 22, 2026

Mid-Morning
Seneca Weather - 2026-09-22 - Morning - Overcast
46°F 8°C
Overcast
Mid-Afternoon
Seneca Weather - 2026-09-22 - Afternoon - Scattered Showers
57°F 14°C
Scattered Showers
Early-Evening
Seneca Weather - 2026-09-22 - Evening - Partly Cloudy
59°F 15°C
Partly Cloudy
Cool and brisk at 57°F 14°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds SE at 14 mph 22 km/h. Gusts up to 21 mph 33 km/h.

Wednesday, September 23, 2026

Mid-Morning
Seneca Weather - 2026-09-23 - Morning - Light Showers
48°F 9°C
Light Showers
Mid-Afternoon
Seneca Weather - 2026-09-23 - Afternoon - Scattered Showers
50°F 10°C
Scattered Showers
Early-Evening
Seneca Weather - 2026-09-23 - Evening - Scattered Showers
50°F 10°C
Scattered Showers
Chilly near 50°F 10°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the SSE to the SE at 8 mph 13 km/h.

Thursday, September 24, 2026

Mid-Morning
Seneca Weather - 2026-09-24 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
Seneca Weather - 2026-09-24 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Seneca Weather - 2026-09-24 - Evening - Sunny
69°F 20°C
Sunny
Cool with a high near 65°F 18°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.

Friday, September 25, 2026

Mid-Morning
Seneca Weather - 2026-09-25 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Seneca Weather - 2026-09-25 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Seneca Weather - 2026-09-25 - Evening - Overcast
67°F 19°C
Overcast
Mild temperatures up to 71°F 22°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, 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 43 km/h.

Saturday, September 26, 2026

Mid-Morning
Seneca Weather - 2026-09-26 - Morning - Light Showers
58°F 14°C
Light Showers
Mid-Afternoon
Seneca Weather - 2026-09-26 - Afternoon - Overcast
65°F 18°C
Overcast
Early-Evening
Seneca Weather - 2026-09-26 - Evening - Cloudy
65°F 19°C
Cloudy
Mildly cool near 65°F 18°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds swinging from the SSE to the SE at 12 mph 18 km/h. Gusts up to 20 mph 31 km/h.

Sunday, September 27, 2026

Mid-Morning
Seneca Weather - 2026-09-27 - Morning - Partly Cloudy
60°F 16°C
Partly Cloudy
Mid-Afternoon
Seneca Weather - 2026-09-27 - Afternoon - Cloudy
75°F 24°C
Cloudy
Early-Evening
Seneca Weather - 2026-09-27 - Evening - Sunny
76°F 24°C
Sunny
Pleasant near 75°F 24°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SSE at 15 mph 24 km/h. Gusts up to 20 mph 32 km/h.

Monday, September 28, 2026

Mid-Morning
Seneca Weather - 2026-09-28 - Morning - Partly Cloudy
64°F 18°C
Partly Cloudy
Mid-Afternoon
Seneca Weather - 2026-09-28 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Seneca Weather - 2026-09-28 - Evening - Sunny
64°F 18°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the ENE to the N at 15 mph 25 km/h. Gusts up to 25 mph 39 km/h.

Tuesday, September 29, 2026

Mid-Morning
Seneca Weather - 2026-09-29 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Seneca Weather - 2026-09-29 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Seneca Weather - 2026-09-29 - Evening - Cloudy
64°F 18°C
Cloudy
Refreshing around 62°F 17°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the SE to the ESE at 5 mph 8 km/h.

Wednesday, September 30, 2026

Mid-Morning
Seneca Weather - 2026-09-30 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Seneca Weather - 2026-09-30 - Afternoon - Sunny
62°F 17°C
Sunny
Early-Evening
Seneca Weather - 2026-09-30 - Evening - Sunny
63°F 17°C
Sunny
Mildly cool near 62°F 17°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the ESE to the SE at 12 mph 20 km/h. Gusts up to 24 mph 39 km/h.

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Weather by the Numbers

Thu, 17th
Seneca SD Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 71°F 22°C
Lo: 52°F 11°C
Sunrise 07:19 AM
Sunset 07:45 PM
Wind E 9 mph15 km/h
Dew Point 51°F11°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 16% *
Humidity 66%
Fri, 18th
Seneca SD Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 59°F 15°C
Lo: 51°F 11°C
Sunrise 07:20 AM
Sunset 07:43 PM
Wind ENE 15 mph24 km/h
Dew Point 52°F11°C
uv Index 0
Barometric Pressure 30.06 in1018 mb
POP 40% *
Humidity 94%
Sat, 19th
Seneca SD Weather - Saturday, Sep 19, 2026 - Patchy Rain Nearby
Hi: 56°F 13°C
Lo: 50°F 10°C
Sunrise 07:22 AM
Sunset 07:41 PM
Wind NE 9 mph15 km/h
Dew Point 49°F10°C
uv Index 1
Barometric Pressure 30.03 in1017 mb
POP 33% *
Humidity 94%
Sun, 20th
Seneca SD Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 61°F 16°C
Lo: 50°F 10°C
Sunrise 07:23 AM
Sunset 07:39 PM
Wind E 15 mph23 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 17% *
Humidity 66%
Mon, 21st
Seneca SD Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 54°F 12°C
Lo: 48°F 9°C
Sunrise 07:24 AM
Sunset 07:37 PM
Wind E 11 mph17 km/h
Dew Point 45°F7°C
uv Index 0
Barometric Pressure 30.18 in1022 mb
POP 26% *
Humidity 82%
Tue, 22nd
Seneca SD Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 60°F 15°C
Lo: 44°F 7°C
Sunrise 07:25 AM
Sunset 07:35 PM
Wind SE 13 mph21 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 30.21 in1023 mb
POP 21% *
Humidity 76%
Wed, 23rd
Seneca SD Weather - Wednesday, Sep 23, 2026 - Moderate Rain
Hi: 54°F 12°C
Lo: 48°F 9°C
Sunrise 07:27 AM
Sunset 07:33 PM
Wind SE 13 mph21 km/h
Dew Point 47°F9°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 80% *
Humidity 95%
Thu, 24th
Seneca SD Weather - Thursday, Sep 24, 2026 - Overcast
Hi: 70°F 21°C
Lo: 49°F 9°C
Sunrise 07:28 AM
Sunset 07:31 PM
Wind SE 6 mph9 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.24 in1024 mb
POP 14% *
Humidity 81%
Fri, 25th
Seneca SD Weather - Friday, Sep 25, 2026 - Cloudy
Hi: 71°F 22°C
Lo: 60°F 16°C
Sunrise 07:29 AM
Sunset 07:30 PM
Wind SSE 15 mph23 km/h
Dew Point 55°F13°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 13% *
Humidity 64%
Sat, 26th
Seneca SD Weather - Saturday, Sep 26, 2026 - Patchy Rain Nearby
Hi: 67°F 20°C
Lo: 56°F 13°C
Sunrise 07:30 AM
Sunset 07:28 PM
Wind SSE 15 mph25 km/h
Dew Point 56°F13°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 27% *
Humidity 86%
Sun, 27th
Seneca SD Weather - Sunday, Sep 27, 2026 - Partly Cloudy
Hi: 77°F 25°C
Lo: 60°F 15°C
Sunrise 07:31 AM
Sunset 07:26 PM
Wind SSE 15 mph24 km/h
Dew Point 55°F13°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 11% *
Humidity 63%
Mon, 28th
Seneca SD Weather - Monday, Sep 28, 2026 - Sunny
Hi: 76°F 25°C
Lo: 53°F 12°C
Sunrise 07:33 AM
Sunset 07:24 PM
Wind E 10 mph17 km/h
Dew Point 57°F14°C
uv Index 6
Barometric Pressure 29.77 in1008 mb
POP 5% *
Humidity 65%
Tue, 29th
Seneca SD Weather - Tuesday, Sep 29, 2026 - Sunny
Hi: 67°F 19°C
Lo: 50°F 10°C
Sunrise 07:34 AM
Sunset 07:22 PM
Wind NE 9 mph14 km/h
Dew Point 35°F2°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 6% *
Humidity 45%
Wed, 30th
Seneca SD Weather - Wednesday, Sep 30, 2026 - Sunny
Hi: 63°F 17°C
Lo: 51°F 11°C
Sunrise 07:35 AM
Sunset 07:20 PM
Wind SE 12 mph19 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 42%
* POP = Probability of Precipitation. Data for 12:00 PM.