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Longlake SD Weather - Clear - 73°F
Clear
73°F
Updated 7:40 pm
Feels Like 64°F
Humidity 55%
Wind S 9 mph
Barometer  29.66 in
Dew Point 56°F
Longlake SD Weather - Clear - 23°C
Clear
23°C
Updated 7:40 pm
Feels Like 18°C
Humidity 55%
Wind S 14 km/h
Barometer  100.4 kPa
Dew Point 13°C
Longlake, SD Weather and Current Conditionslonglake sd weather forecast

Longlake, SD Weather Forecast

Longlake South Dakota WeatherLonglake, South Dakota Weather Weather Forecast
14 day API weather forecast for Longlake, South Dakota. Note: The 7-day weather forecast for Longlake, 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.
Longlake, SD Weather Forecast Dated: 740 PM Fri Oct 09 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, October 9, 2026

Mid-Morning
Longlake Weather - 2026-10-09 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-09 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Longlake Weather - 2026-10-09 - Evening - Sunny
71°F 22°C
Sunny
Pleasant near 75°F 24°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds out of the SSE at 16 mph 26 km/h. Gusts up to 30 mph 49 km/h.

Saturday, October 10, 2026

Mid-Morning
Longlake Weather - 2026-10-10 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Longlake Weather - 2026-10-10 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Longlake Weather - 2026-10-10 - Evening - Sunny
75°F 24°C
Sunny
Balmy with temperatures reaching 88°F 31°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the SSE to the N at 8 mph 12 km/h.

Sunday, October 11, 2026

Mid-Morning
Longlake Weather - 2026-10-11 - Morning - Overcast
53°F 12°C
Overcast
Mid-Afternoon
Longlake Weather - 2026-10-11 - Afternoon - Overcast
59°F 15°C
Overcast
Early-Evening
Longlake Weather - 2026-10-11 - Evening - Overcast
51°F 11°C
Overcast
Comfortable at 59°F 15°C, overcast throughout the day, with steady humidity and barometric pressure rising. Winds NNE at 15 mph 24 km/h.

Monday, October 12, 2026

Mid-Morning
Longlake Weather - 2026-10-12 - Morning - Overcast
43°F 6°C
Overcast
Mid-Afternoon
Longlake Weather - 2026-10-12 - Afternoon - Overcast
47°F 8°C
Overcast
Early-Evening
Longlake Weather - 2026-10-12 - Evening - Partly Cloudy
45°F 7°C
Partly Cloudy
Crisp with a high near 47°F 8°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure rising. Winds swinging from the NE to the N at 10 mph 15 km/h.

Tuesday, October 13, 2026

Mid-Morning
Longlake Weather - 2026-10-13 - Morning - Overcast
41°F 5°C
Overcast
Mid-Afternoon
Longlake Weather - 2026-10-13 - Afternoon - Partly Cloudy
54°F 12°C
Partly Cloudy
Early-Evening
Longlake Weather - 2026-10-13 - Evening - Sunny
50°F 10°C
Sunny
Brisk around 54°F 12°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Wednesday, October 14, 2026

Mid-Morning
Longlake Weather - 2026-10-14 - Morning - Sunny
47°F 8°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-14 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Longlake Weather - 2026-10-14 - Evening - Overcast
59°F 15°C
Overcast
Mildly cool near 64°F 18°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds blowing from the SE at 15 mph 24 km/h. Gusts up to 25 mph 40 km/h.

Thursday, October 15, 2026

Mid-Morning
Longlake Weather - 2026-10-15 - Morning - Light Showers
54°F 12°C
Light Showers
Mid-Afternoon
Longlake Weather - 2026-10-15 - Afternoon - Light Rain
52°F 11°C
Light Rain
Early-Evening
Longlake Weather - 2026-10-15 - Evening - Scattered Showers
46°F 8°C
Scattered Showers
Chilly near 52°F 11°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds increasing from the SSE at 6 mph 10 km/h to NW at 25 mph 40 km/h. Gusts up to 45 mph 72 km/h.

Friday, October 16, 2026

Mid-Morning
Longlake Weather - 2026-10-16 - Morning - Cloudy
36°F 2°C
Cloudy
Mid-Afternoon
Longlake Weather - 2026-10-16 - Afternoon - Overcast
39°F 4°C
Overcast
Early-Evening
Longlake Weather - 2026-10-16 - Evening - Overcast
37°F 2°C
Overcast
Biting cold near 39°F 4°C, overcast through the afternoon, turning sunny this evening, with lower humidity and barometric pressure rising. Winds switching from the NW to the NNW at 23 mph 38 km/h. Gusts up to 41 mph 66 km/h.

Saturday, October 17, 2026

Mid-Morning
Longlake Weather - 2026-10-17 - Morning - Sunny
28°F -2°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-17 - Afternoon - Cloudy
41°F 5°C
Cloudy
Early-Evening
Longlake Weather - 2026-10-17 - Evening - Overcast
35°F 2°C
Overcast
Cold with a high near 41°F 5°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the SE to the SSE at 10 mph 15 km/h. Gusts up to 20 mph 32 km/h.

Sunday, October 18, 2026

Mid-Morning
Longlake Weather - 2026-10-18 - Morning - Overcast
35°F 2°C
Overcast
Mid-Afternoon
Longlake Weather - 2026-10-18 - Afternoon - Overcast
52°F 11°C
Overcast
Early-Evening
Longlake Weather - 2026-10-18 - Evening - Overcast
46°F 8°C
Overcast
Cool and brisk at 52°F 11°C, overcast throughout the day, with steady humidity and steady pressure.

Monday, October 19, 2026

Mid-Morning
Longlake Weather - 2026-10-19 - Morning - Sunny
45°F 7°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-19 - Afternoon - Sunny
60°F 15°C
Sunny
Early-Evening
Longlake Weather - 2026-10-19 - Evening - Sunny
51°F 11°C
Sunny
Comfortable at 60°F 15°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds swinging from the ESE to the SSE at 8 mph 12 km/h.

Tuesday, October 20, 2026

Mid-Morning
Longlake Weather - 2026-10-20 - Morning - Sunny
49°F 9°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-20 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Longlake Weather - 2026-10-20 - Evening - Sunny
61°F 16°C
Sunny
Comfortable with temperatures reaching 69°F 21°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds out of the S at 15 mph 24 km/h. Gusts up to 28 mph 45 km/h.

Wednesday, October 21, 2026

Mid-Morning
Longlake Weather - 2026-10-21 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-21 - Afternoon - Sunny
59°F 15°C
Sunny
Early-Evening
Longlake Weather - 2026-10-21 - Evening - Sunny
50°F 11°C
Sunny
Refreshing around 59°F 15°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds turning from the ESE to the NNE at 7 mph 11 km/h.

Thursday, October 22, 2026

Mid-Morning
Longlake Weather - 2026-10-22 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Longlake Weather - 2026-10-22 - Afternoon - Sunny
60°F 15°C
Sunny
Early-Evening
Longlake Weather - 2026-10-22 - Evening - Sunny
52°F 11°C
Sunny
Mildly cool near 60°F 15°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the S to the SE at 10 mph 16 km/h. Gusts up to 23 mph 37 km/h.

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Weather by the Numbers

Fri, 9th
Longlake SD Weather - Friday, Oct 9, 2026 - Cloudy
Hi: 76°F 25°C
Lo: 48°F 9°C
Sunrise 07:46 AM
Sunset 07:02 PM
Wind SSE 14 mph22 km/h
Dew Point 49°F9°C
uv Index 3
Barometric Pressure 29.8 in1009 mb
POP 7% *
Humidity 53%
Sat, 10th
Longlake SD Weather - Saturday, Oct 10, 2026 - Sunny
Hi: 88°F 31°C
Lo: 59°F 15°C
Sunrise 07:47 AM
Sunset 07:00 PM
Wind SSW 12 mph19 km/h
Dew Point 40°F5°C
uv Index 2
Barometric Pressure 29.44 in997 mb
POP 1% *
Humidity 25%
Sun, 11th
Longlake SD Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 62°F 17°C
Lo: 45°F 7°C
Sunrise 07:49 AM
Sunset 06:58 PM
Wind NE 14 mph23 km/h
Dew Point 42°F6°C
uv Index 2
Barometric Pressure 29.85 in1011 mb
POP 14% *
Humidity 57%
Mon, 12th
Longlake SD Weather - Monday, Oct 12, 2026 - Overcast
Hi: 51°F 10°C
Lo: 42°F 6°C
Sunrise 07:50 AM
Sunset 06:56 PM
Wind N 7 mph12 km/h
Dew Point 40°F4°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 18% *
Humidity 69%
Tue, 13th
Longlake SD Weather - Tuesday, Oct 13, 2026 - Cloudy
Hi: 55°F 13°C
Lo: 38°F 3°C
Sunrise 07:51 AM
Sunset 06:54 PM
Wind NE 1 mph1 km/h
Dew Point 36°F2°C
uv Index 2
Barometric Pressure 30.21 in1023 mb
POP 14% *
Humidity 65%
Wed, 14th
Longlake SD Weather - Wednesday, Oct 14, 2026 - Sunny
Hi: 65°F 18°C
Lo: 41°F 5°C
Sunrise 07:53 AM
Sunset 06:53 PM
Wind SE 13 mph21 km/h
Dew Point 41°F5°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 3% *
Humidity 55%
Thu, 15th
Longlake SD Weather - Thursday, Oct 15, 2026 - Light Drizzle
Hi: 55°F 13°C
Lo: 42°F 6°C
Sunrise 07:54 AM
Sunset 06:51 PM
Wind WSW 13 mph21 km/h
Dew Point 53°F12°C
uv Index 3
Barometric Pressure 29.65 in1004 mb
POP 73% *
Humidity 95%
Fri, 16th
Longlake SD Weather - Friday, Oct 16, 2026 - Blowing Snow
Hi: 41°F 5°C
Lo: 32°F -0°C
Sunrise 07:55 AM
Sunset 06:49 PM
Wind NW 29 mph47 km/h
Dew Point 25°F-4°C
uv Index 1
Barometric Pressure 30.21 in1023 mb
POP 16% *
Humidity 61%
Sat, 17th
Longlake SD Weather - Saturday, Oct 17, 2026 - Sunny
Hi: 42°F 5°C
Lo: 25°F -4°C
Sunrise 07:57 AM
Sunset 06:47 PM
Wind ESE 6 mph9 km/h
Dew Point 14°F-10°C
uv Index 2
Barometric Pressure 30.59 in1036 mb
POP 4% *
Humidity 41%
Sun, 18th
Longlake SD Weather - Sunday, Oct 18, 2026 - Overcast
Hi: 53°F 12°C
Lo: 29°F -2°C
Sunrise 07:58 AM
Sunset 06:46 PM
Wind SW 4 mph7 km/h
Dew Point 21°F-6°C
uv Index 2
Barometric Pressure 30.21 in1023 mb
POP 10% *
Humidity 38%
Mon, 19th
Longlake SD Weather - Monday, Oct 19, 2026 - Sunny
Hi: 60°F 16°C
Lo: 40°F 4°C
Sunrise 07:59 AM
Sunset 06:44 PM
Wind SE 5 mph8 km/h
Dew Point 28°F-3°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 36%
Tue, 20th
Longlake SD Weather - Tuesday, Oct 20, 2026 - Sunny
Hi: 72°F 22°C
Lo: 44°F 7°C
Sunrise 08:01 AM
Sunset 06:42 PM
Wind SSE 15 mph24 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 46%
Wed, 21st
Longlake SD Weather - Wednesday, Oct 21, 2026 - Sunny
Hi: 60°F 15°C
Lo: 45°F 7°C
Sunrise 08:02 AM
Sunset 06:40 PM
Wind N 14 mph22 km/h
Dew Point 40°F4°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 3% *
Humidity 53%
Thu, 22nd
Longlake SD Weather - Thursday, Oct 22, 2026 - Sunny
Hi: 61°F 16°C
Lo: 41°F 5°C
Sunrise 08:03 AM
Sunset 06:39 PM
Wind S 8 mph13 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 47%
* POP = Probability of Precipitation. Data for 12:00 PM.