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Alpena SD Weather - Partly Cloudy - 53°F
Partly Cloudy
53°F
Updated 7:37 am
Feels Like 51°F
Humidity 82%
Wind NW 9 mph
Barometer  30.04 in
Dew Point 48°F
Alpena SD Weather - Partly Cloudy - 12°C
Partly Cloudy
12°C
Updated 7:37 am
Feels Like 11°C
Humidity 82%
Wind NW 14 km/h
Barometer  101.7 kPa
Dew Point 9°C
Alpena, SD Weather and Current Conditionsalpena sd weather forecast

Alpena, SD Weather Forecast

Alpena South Dakota WeatherAlpena, South Dakota Weather Weather Forecast
14 day API forecast for Alpena, South Dakota. Note. The 7-day weather forecast for Alpena, SD is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Alpena, SD Weather Forecast Dated: 737 AM Sat Sep 12 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 12, 2026

Mid-Morning
Alpena Weather - 2026-09-12 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Alpena Weather - 2026-09-12 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Alpena Weather - 2026-09-12 - Evening - Overcast
69°F 21°C
Overcast
Pleasant near 72°F 22°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds turning from the NNW to the N at 8 mph 13 km/h.

Sunday, September 13, 2026

Mid-Morning
Alpena Weather - 2026-09-13 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Alpena Weather - 2026-09-13 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Alpena Weather - 2026-09-13 - Evening - Overcast
64°F 18°C
Overcast
Mildly cool near 62°F 17°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the NE to the ESE at 12 mph 19 km/h. Gusts up to 20 mph 33 km/h.

Monday, September 14, 2026

Mid-Morning
Alpena Weather - 2026-09-14 - Morning - Light Showers
57°F 14°C
Light Showers
Mid-Afternoon
Alpena Weather - 2026-09-14 - Afternoon - Overcast
65°F 19°C
Overcast
Early-Evening
Alpena Weather - 2026-09-14 - Evening - Overcast
71°F 22°C
Overcast
Comfortable at 65°F 19°C, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds decreasing from SSE 21 mph 33 km/h to WNW 7 mph 11 km/h.

Tuesday, September 15, 2026

Mid-Morning
Alpena Weather - 2026-09-15 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-15 - Afternoon - Cloudy
69°F 21°C
Cloudy
Early-Evening
Alpena Weather - 2026-09-15 - Evening - Overcast
68°F 20°C
Overcast
Mild temperatures up to 69°F 21°C, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds easing from NNW 12 mph 19 km/h to ENE 3 mph 4 km/h.

Wednesday, September 16, 2026

Mid-Morning
Alpena Weather - 2026-09-16 - Morning - Scattered Showers
55°F 13°C
Scattered Showers
Mid-Afternoon
Alpena Weather - 2026-09-16 - Afternoon - Light Showers
55°F 13°C
Light Showers
Early-Evening
Alpena Weather - 2026-09-16 - Evening - Light Showers
54°F 13°C
Light Showers
Brisk around 55°F 13°C, scattered downpours possible, with increasing humidity and steady pressure. Winds shifting from the SE to the ENE at 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.

Thursday, September 17, 2026

Mid-Morning
Alpena Weather - 2026-09-17 - Morning - Light Showers
52°F 11°C
Light Showers
Mid-Afternoon
Alpena Weather - 2026-09-17 - Afternoon - Scattered Showers
51°F 11°C
Scattered Showers
Early-Evening
Alpena Weather - 2026-09-17 - Evening - Scattered Showers
51°F 11°C
Scattered Showers
Cool and brisk at 51°F 11°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the NNE to the SW at 9 mph 15 km/h.

Friday, September 18, 2026

Mid-Morning
Alpena Weather - 2026-09-18 - Morning - Cloudy
50°F 10°C
Cloudy
Mid-Afternoon
Alpena Weather - 2026-09-18 - Afternoon - Overcast
60°F 15°C
Overcast
Early-Evening
Alpena Weather - 2026-09-18 - Evening - Partly Cloudy
63°F 17°C
Partly Cloudy
Comfortable at 60°F 15°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the ESE to the WNW at 5 mph 8 km/h.

Saturday, September 19, 2026

Mid-Morning
Alpena Weather - 2026-09-19 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-19 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Alpena Weather - 2026-09-19 - Evening - Sunny
70°F 21°C
Sunny
Enjoyable around 69°F 21°C, sunny throughout the day, with lower humidity and steady pressure.

Sunday, September 20, 2026

Mid-Morning
Alpena Weather - 2026-09-20 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-20 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Alpena Weather - 2026-09-20 - Evening - Sunny
68°F 20°C
Sunny
Mild temperatures up to 71°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the SSE at 14 mph 22 km/h. Gusts up to 23 mph 36 km/h.

Monday, September 21, 2026

Mid-Morning
Alpena Weather - 2026-09-21 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-21 - Afternoon - Overcast
81°F 27°C
Overcast
Early-Evening
Alpena Weather - 2026-09-21 - Evening - Sunny
78°F 26°C
Sunny
Very warm with a high of 81°F 27°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds decreasing from S 17 mph 28 km/h to NW 9 mph 15 km/h.

Tuesday, September 22, 2026

Mid-Morning
Alpena Weather - 2026-09-22 - Morning - Cloudy
66°F 19°C
Cloudy
Mid-Afternoon
Alpena Weather - 2026-09-22 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Alpena Weather - 2026-09-22 - Evening - Sunny
77°F 25°C
Sunny
Warm and summery near 83°F 28°C, partly cloudy through the afternoon, turning sunny this evening, with lower humidity and steady pressure. Winds shifting from the S to the NNW at 11 mph 18 km/h. Gusts up to 22 mph 34 km/h.

Wednesday, September 23, 2026

Mid-Morning
Alpena Weather - 2026-09-23 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-23 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Alpena Weather - 2026-09-23 - Evening - Sunny
65°F 18°C
Sunny
Comfortable with temperatures reaching 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NNW to the ESE at 10 mph 16 km/h.

Thursday, September 24, 2026

Mid-Morning
Alpena Weather - 2026-09-24 - Morning - Sunny
51°F 11°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-24 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Alpena Weather - 2026-09-24 - Evening - Sunny
67°F 19°C
Sunny
Refreshing around 67°F 19°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds SSE at 19 mph 31 km/h. Gusts up to 29 mph 47 km/h.

Friday, September 25, 2026

Mid-Morning
Alpena Weather - 2026-09-25 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Alpena Weather - 2026-09-25 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Alpena Weather - 2026-09-25 - Evening - Overcast
56°F 13°C
Overcast
Mildly cool near 61°F 16°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure rising. Winds moving from the NNW to the N at 14 mph 23 km/h. Gusts up to 22 mph 36 km/h.

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Weather by the Numbers

Sat, 12th
Alpena SD Weather - Saturday, Sep 12, 2026 - Partly Cloudy
Hi: 73°F 23°C
Lo: 56°F 13°C
Sunrise 07:10 AM
Sunset 07:50 PM
Wind NNW 10 mph16 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 33%
Sun, 13th
Alpena SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 65°F 18°C
Lo: 54°F 12°C
Sunrise 07:11 AM
Sunset 07:48 PM
Wind E 12 mph19 km/h
Dew Point 34°F1°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 10% *
Humidity 43%
Mon, 14th
Alpena SD Weather - Monday, Sep 14, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 54°F 12°C
Sunrise 07:12 AM
Sunset 07:46 PM
Wind SSE 17 mph28 km/h
Dew Point 55°F13°C
uv Index 1
Barometric Pressure 29.74 in1007 mb
POP 37% *
Humidity 91%
Tue, 15th
Alpena SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 71°F 22°C
Lo: 52°F 11°C
Sunrise 07:13 AM
Sunset 07:44 PM
Wind NNW 7 mph12 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 41%
Wed, 16th
Alpena SD Weather - Wednesday, Sep 16, 2026 - Light Rain Shower
Hi: 64°F 18°C
Lo: 52°F 11°C
Sunrise 07:14 AM
Sunset 07:42 PM
Wind ESE 8 mph13 km/h
Dew Point 52°F11°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 45% *
Humidity 90%
Thu, 17th
Alpena SD Weather - Thursday, Sep 17, 2026 - Patchy Rain Nearby
Hi: 53°F 11°C
Lo: 49°F 10°C
Sunrise 07:16 AM
Sunset 07:41 PM
Wind NNE 12 mph19 km/h
Dew Point 49°F10°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 33% *
Humidity 95%
Fri, 18th
Alpena SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 64°F 18°C
Lo: 48°F 9°C
Sunrise 07:17 AM
Sunset 07:39 PM
Wind N 7 mph11 km/h
Dew Point 47°F9°C
uv Index 3
Barometric Pressure 30.21 in1023 mb
POP 22% *
Humidity 77%
Sat, 19th
Alpena SD Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 72°F 22°C
Lo: 57°F 14°C
Sunrise 07:18 AM
Sunset 07:37 PM
Wind NNE 4 mph7 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 2% *
Humidity 54%
Sun, 20th
Alpena SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 71°F 22°C
Lo: 57°F 14°C
Sunrise 07:19 AM
Sunset 07:35 PM
Wind SSE 13 mph21 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 53%
Mon, 21st
Alpena SD Weather - Monday, Sep 21, 2026 - Sunny
Hi: 83°F 28°C
Lo: 58°F 14°C
Sunrise 07:20 AM
Sunset 07:33 PM
Wind SSW 15 mph24 km/h
Dew Point 49°F10°C
uv Index 6
Barometric Pressure 29.85 in1011 mb
POP 6% *
Humidity 46%
Tue, 22nd
Alpena SD Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 84°F 29°C
Lo: 63°F 17°C
Sunrise 07:21 AM
Sunset 07:31 PM
Wind SW 12 mph19 km/h
Dew Point 40°F5°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 5% *
Humidity 28%
Wed, 23rd
Alpena SD Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 69°F 20°C
Lo: 58°F 15°C
Sunrise 07:23 AM
Sunset 07:29 PM
Wind NNW 13 mph21 km/h
Dew Point 31°F-1°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 29%
Thu, 24th
Alpena SD Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 69°F 20°C
Lo: 49°F 10°C
Sunrise 07:24 AM
Sunset 07:28 PM
Wind SSE 18 mph29 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 37%
Fri, 25th
Alpena SD Weather - Friday, Sep 25, 2026 - Overcast
Hi: 65°F 18°C
Lo: 53°F 12°C
Sunrise 07:25 AM
Sunset 07:26 PM
Wind N 24 mph38 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 10% *
Humidity 41%
* POP = Probability of Precipitation. Data for 12:00 PM.