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Stephan SD Weather - Drizzle - 55°F
Drizzle
55°F
Updated 4:55 am
Feels Like 48°F
Humidity 99%
Wind E 8 mph
Barometer  30.16 in
Dew Point 55°F
Stephan SD Weather - Drizzle - 13°C
Drizzle
13°C
Updated 4:55 am
Feels Like 9°C
Humidity 99%
Wind E 13 km/h
Barometer  102.1 kPa
Dew Point 13°C
Stephan, SD Weather and Current Conditionsstephan sd weather forecast

Stephan, SD Weather Forecast

Stephan South Dakota WeatherStephan, South Dakota Weather Weather Forecast
14 day API weather forecast for Stephan, South Dakota. Note: The 7-day weather forecast for Stephan, 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.
Stephan, SD Weather Forecast Dated: 455 AM Mon Sep 21 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.

Monday, September 21, 2026

Mid-Morning
Stephan Weather - 2026-09-21 - Morning - Light Rain
50°F 10°C
Light Rain
Mid-Afternoon
Stephan Weather - 2026-09-21 - Afternoon - Light Rain
50°F 10°C
Light Rain
Early-Evening
Stephan Weather - 2026-09-21 - Evening - Light Showers
50°F 10°C
Light Showers
Brisk around 50°F 10°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds turning from the ENE to the E at 9 mph 14 km/h.

Tuesday, September 22, 2026

Mid-Morning
Stephan Weather - 2026-09-22 - Morning - Scattered Showers
49°F 10°C
Scattered Showers
Mid-Afternoon
Stephan Weather - 2026-09-22 - Afternoon - Overcast
56°F 13°C
Overcast
Early-Evening
Stephan Weather - 2026-09-22 - Evening - Overcast
56°F 14°C
Overcast
Cool and brisk at 56°F 13°C, scattered downpours possible, with lower humidity and steady pressure. Winds blowing from the SE at 14 mph 23 km/h. Gusts up to 24 mph 38 km/h.

Wednesday, September 23, 2026

Mid-Morning
Stephan Weather - 2026-09-23 - Morning - Sunny
53°F 12°C
Sunny
Mid-Afternoon
Stephan Weather - 2026-09-23 - Afternoon - Overcast
67°F 20°C
Overcast
Early-Evening
Stephan Weather - 2026-09-23 - Evening - Scattered Showers
65°F 18°C
Scattered Showers
Comfortable at 67°F 20°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds SSE at 20 mph 32 km/h. Gusts up to 31 mph 50 km/h.

Thursday, September 24, 2026

Mid-Morning
Stephan Weather - 2026-09-24 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Stephan Weather - 2026-09-24 - Afternoon - Scattered Showers
59°F 15°C
Scattered Showers
Early-Evening
Stephan Weather - 2026-09-24 - Evening - Overcast
58°F 14°C
Overcast
Cool with a high near 59°F 15°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the SSE to the ESE at 13 mph 20 km/h. Gusts up to 20 mph 33 km/h.

Friday, September 25, 2026

Mid-Morning
Stephan Weather - 2026-09-25 - Morning - Scattered Showers
53°F 12°C
Scattered Showers
Mid-Afternoon
Stephan Weather - 2026-09-25 - Afternoon - Overcast
52°F 11°C
Overcast
Early-Evening
Stephan Weather - 2026-09-25 - Evening - Overcast
51°F 11°C
Overcast
Brisk around 52°F 11°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the SE at 14 mph 22 km/h. Gusts up to 23 mph 37 km/h.

Saturday, September 26, 2026

Mid-Morning
Stephan Weather - 2026-09-26 - Morning - Overcast
51°F 11°C
Overcast
Mid-Afternoon
Stephan Weather - 2026-09-26 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Stephan Weather - 2026-09-26 - Evening - Partly Cloudy
57°F 14°C
Partly Cloudy
Mildly cool near 61°F 16°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds SSE at 17 mph 27 km/h. Gusts up to 29 mph 47 km/h.

Sunday, September 27, 2026

Mid-Morning
Stephan Weather - 2026-09-27 - Morning - Nearby Thunderstorms
56°F 13°C
Nearby Thunderstorms
Mid-Afternoon
Stephan Weather - 2026-09-27 - Afternoon - Cloudy
75°F 24°C
Cloudy
Early-Evening
Stephan Weather - 2026-09-27 - Evening - Sunny
64°F 18°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, periods of heavy thunderstorms, with lower humidity and steady pressure. Winds switching from the SSE to the NNW at 14 mph 21 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 28, 2026

Mid-Morning
Stephan Weather - 2026-09-28 - Morning - Light Showers
53°F 12°C
Light Showers
Mid-Afternoon
Stephan Weather - 2026-09-28 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Stephan Weather - 2026-09-28 - Evening - Overcast
63°F 18°C
Overcast
Cool with a high near 61°F 16°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds moving from the SE to the E at 5 mph 8 km/h.

Tuesday, September 29, 2026

Mid-Morning
Stephan Weather - 2026-09-29 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Stephan Weather - 2026-09-29 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Stephan Weather - 2026-09-29 - Evening - Sunny
66°F 19°C
Sunny
Refreshing around 66°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the S to the SE at 9 mph 14 km/h. Gusts up to 20 mph 31 km/h.

Wednesday, September 30, 2026

Mid-Morning
Stephan Weather - 2026-09-30 - Morning - Sunny
56°F 13°C
Sunny
Mid-Afternoon
Stephan Weather - 2026-09-30 - Afternoon - Sunny
69°F 20°C
Sunny
Early-Evening
Stephan Weather - 2026-09-30 - Evening - Sunny
66°F 19°C
Sunny
Mild with a high of 69°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds out of the SSE at 20 mph 32 km/h. Gusts up to 37 mph 59 km/h.

Thursday, October 1, 2026

Mid-Morning
Stephan Weather - 2026-10-01 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Stephan Weather - 2026-10-01 - Afternoon - Overcast
64°F 18°C
Overcast
Early-Evening
Stephan Weather - 2026-10-01 - Evening - Overcast
66°F 19°C
Overcast
Comfortable at 64°F 18°C, overcast throughout the day, with steady humidity and steady pressure. Winds tapering down from SSE 18 mph 29 km/h to S 8 mph 12 km/h.

Friday, October 2, 2026

Mid-Morning
Stephan Weather - 2026-10-02 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Stephan Weather - 2026-10-02 - Afternoon - Scattered Showers
65°F 18°C
Scattered Showers
Early-Evening
Stephan Weather - 2026-10-02 - Evening - Scattered Showers
67°F 20°C
Scattered Showers
Cool with a high near 65°F 18°C, locally heavy downpours at times, with lower humidity and steady pressure.

Saturday, October 3, 2026

Mid-Morning
Stephan Weather - 2026-10-03 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Stephan Weather - 2026-10-03 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Stephan Weather - 2026-10-03 - Evening - Sunny
76°F 25°C
Sunny
Enjoyable around 75°F 24°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds S at 17 mph 28 km/h. Gusts up to 32 mph 52 km/h.

Sunday, October 4, 2026

Mid-Morning
Stephan Weather - 2026-10-04 - Morning - Overcast
62°F 17°C
Overcast
Mid-Afternoon
Stephan Weather - 2026-10-04 - Afternoon - Overcast
74°F 24°C
Overcast
Early-Evening
Stephan Weather - 2026-10-04 - Evening - Partly Cloudy
73°F 23°C
Partly Cloudy
Mild temperatures up to 74°F 24°C, cloudy throughout the day, with lower humidity and barometric pressure falling. Winds out of the SSE at 25 mph 41 km/h. Gusts up to 45 mph 72 km/h.

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Weather by the Numbers

Mon, 21st
Stephan SD Weather - Monday, Sep 21, 2026 - Light Rain Shower
Hi: 52°F 11°C
Lo: 49°F 10°C
Sunrise 07:24 AM
Sunset 07:37 PM
Wind E 8 mph13 km/h
Dew Point 49°F10°C
uv Index 1
Barometric Pressure 30.15 in1021 mb
POP 58% *
Humidity 97%
Tue, 22nd
Stephan SD Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 57°F 14°C
Lo: 49°F 9°C
Sunrise 07:25 AM
Sunset 07:35 PM
Wind SE 12 mph19 km/h
Dew Point 50°F10°C
uv Index 2
Barometric Pressure 30.21 in1023 mb
POP 32% *
Humidity 93%
Wed, 23rd
Stephan SD Weather - Wednesday, Sep 23, 2026 - Overcast
Hi: 68°F 20°C
Lo: 52°F 11°C
Sunrise 07:27 AM
Sunset 07:33 PM
Wind SSE 21 mph34 km/h
Dew Point 51°F11°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 18% *
Humidity 70%
Thu, 24th
Stephan SD Weather - Thursday, Sep 24, 2026 - Overcast
Hi: 64°F 18°C
Lo: 52°F 11°C
Sunrise 07:28 AM
Sunset 07:32 PM
Wind SSE 16 mph26 km/h
Dew Point 55°F13°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 24% *
Humidity 81%
Fri, 25th
Stephan SD Weather - Friday, Sep 25, 2026 - Patchy Rain Nearby
Hi: 58°F 14°C
Lo: 50°F 10°C
Sunrise 07:29 AM
Sunset 07:30 PM
Wind SE 13 mph21 km/h
Dew Point 51°F11°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 35% *
Humidity 93%
Sat, 26th
Stephan SD Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 63°F 17°C
Lo: 50°F 10°C
Sunrise 07:30 AM
Sunset 07:28 PM
Wind SSE 16 mph26 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 29.94 in1014 mb
POP 26% *
Humidity 84%
Sun, 27th
Stephan SD Weather - Sunday, Sep 27, 2026 - Overcast
Hi: 78°F 25°C
Lo: 52°F 11°C
Sunrise 07:31 AM
Sunset 07:26 PM
Wind SSE 14 mph23 km/h
Dew Point 56°F13°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 15% *
Humidity 73%
Mon, 28th
Stephan SD Weather - Monday, Sep 28, 2026 - Patchy Rain Nearby
Hi: 64°F 18°C
Lo: 51°F 11°C
Sunrise 07:32 AM
Sunset 07:24 PM
Wind NNE 7 mph12 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 23% *
Humidity 78%
Tue, 29th
Stephan SD Weather - Tuesday, Sep 29, 2026 - Sunny
Hi: 69°F 20°C
Lo: 55°F 13°C
Sunrise 07:34 AM
Sunset 07:22 PM
Wind S 7 mph12 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 3% *
Humidity 59%
Wed, 30th
Stephan SD Weather - Wednesday, Sep 30, 2026 - Sunny
Hi: 70°F 21°C
Lo: 55°F 13°C
Sunrise 07:35 AM
Sunset 07:20 PM
Wind SSE 19 mph30 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 3% *
Humidity 58%
Thu, 1st
Stephan SD Weather - Thursday, Oct 1, 2026 - Overcast
Hi: 67°F 19°C
Lo: 54°F 12°C
Sunrise 07:36 AM
Sunset 07:18 PM
Wind SSE 16 mph26 km/h
Dew Point 49°F9°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 16% *
Humidity 65%
Fri, 2nd
Stephan SD Weather - Friday, Oct 2, 2026 - Partly Cloudy
Hi: 68°F 20°C
Lo: 58°F 15°C
Sunrise 07:37 AM
Sunset 07:17 PM
Wind SSW 6 mph10 km/h
Dew Point 54°F12°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 14% *
Humidity 73%
Sat, 3rd
Stephan SD Weather - Saturday, Oct 3, 2026 - Sunny
Hi: 79°F 26°C
Lo: 61°F 16°C
Sunrise 07:38 AM
Sunset 07:15 PM
Wind S 16 mph26 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 29.85 in1011 mb
POP 2% *
Humidity 49%
Sun, 4th
Stephan SD Weather - Sunday, Oct 4, 2026 - Partly Cloudy
Hi: 76°F 24°C
Lo: 61°F 16°C
Sunrise 07:40 AM
Sunset 07:13 PM
Wind S 24 mph39 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 29.59 in1002 mb
POP 9% *
Humidity 54%
* POP = Probability of Precipitation. Data for 12:00 PM.