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Opal SD Weather - Sunny - 87°F
Sunny
87°F
Updated 10:33 am
Feels Like 82°F
Humidity 34%
Wind S 15 mph
Barometer  29.97 in
Dew Point 56°F
Opal SD Weather - Sunny - 31°C
Sunny
31°C
Updated 10:33 am
Feels Like 28°C
Humidity 34%
Wind S 24 km/h
Barometer  101.4 kPa
Dew Point 13°C
Opal, SD Weather and Current Conditionsopal sd weather forecast

Opal, SD Weather Forecast

Opal South Dakota WeatherOpal, South Dakota Weather Weather Forecast
Here is the API 14 day weather forecast for Opal, South Dakota. Note: The 7-day weather forecast for Opal, SD is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Opal, SD Weather Forecast Dated: 1033 AM Sun Sep 06 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Sunday, September 6, 2026

Mid-Morning
Opal Weather - 2026-09-06 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-06 - Afternoon - Sunny
94°F 35°C
Sunny
Early-Evening
Opal Weather - 2026-09-06 - Evening - Overcast
88°F 31°C
Overcast
Very hot with temperatures reaching 94°F 35°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds turning from the S to the SE at 12 mph 19 km/h.

Monday, September 7, 2026

Mid-Morning
Opal Weather - 2026-09-07 - Morning - Scattered Showers
81°F 27°C
Scattered Showers
Mid-Afternoon
Opal Weather - 2026-09-07 - Afternoon - Partly Cloudy
92°F 33°C
Partly Cloudy
Early-Evening
Opal Weather - 2026-09-07 - Evening - Sunny
85°F 29°C
Sunny
Hot and sweltering around 92°F 33°C, scattered downpours possible, with lower humidity and steady pressure. Winds switching from the WSW to the SE at 9 mph 13 km/h. Gusts up to 20 mph 31 km/h.

Tuesday, September 8, 2026

Mid-Morning
Opal Weather - 2026-09-08 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-08 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Opal Weather - 2026-09-08 - Evening - Sunny
75°F 24°C
Sunny
Quite warm around 82°F 28°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the WNW to the NNW at 17 mph 28 km/h. Gusts up to 28 mph 44 km/h.

Wednesday, September 9, 2026

Mid-Morning
Opal Weather - 2026-09-09 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Opal Weather - 2026-09-09 - Afternoon - Overcast
82°F 28°C
Overcast
Early-Evening
Opal Weather - 2026-09-09 - Evening - Overcast
76°F 25°C
Overcast
Warm temperatures up to 82°F 28°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the WNW to the ESE at 10 mph 15 km/h.

Thursday, September 10, 2026

Mid-Morning
Opal Weather - 2026-09-10 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-10 - Afternoon - Partly Cloudy
90°F 32°C
Partly Cloudy
Early-Evening
Opal Weather - 2026-09-10 - Evening - Sunny
82°F 28°C
Sunny
Very hot with a high of 90°F 32°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the SE to the SSE at 8 mph 12 km/h.

Friday, September 11, 2026

Mid-Morning
Opal Weather - 2026-09-11 - Morning - Sunny
78°F 25°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-11 - Afternoon - Sunny
80°F 26°C
Sunny
Early-Evening
Opal Weather - 2026-09-11 - Evening - Overcast
66°F 19°C
Overcast
Warm and summery near 80°F 26°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with increasing humidity and barometric pressure rising. Winds turning from the NW to the N at 16 mph 26 km/h. Gusts up to 21 mph 33 km/h.

Saturday, September 12, 2026

Mid-Morning
Opal Weather - 2026-09-12 - Morning - Light Showers
49°F 9°C
Light Showers
Mid-Afternoon
Opal Weather - 2026-09-12 - Afternoon - Light Showers
52°F 11°C
Light Showers
Early-Evening
Opal Weather - 2026-09-12 - Evening - Light Showers
54°F 12°C
Light Showers
Chilly near 52°F 11°C, rounds of showers expected off and on all day, with lower humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Opal Weather - 2026-09-13 - Morning - Sunny
54°F 12°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-13 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
Opal Weather - 2026-09-13 - Evening - Sunny
61°F 16°C
Sunny
Cool with a high near 63°F 17°C, sunny throughout the day, with lower humidity and steady pressure.

Monday, September 14, 2026

Mid-Morning
Opal Weather - 2026-09-14 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-14 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Opal Weather - 2026-09-14 - Evening - Sunny
69°F 21°C
Sunny
Mild temperatures up to 75°F 24°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the SSE to the ESE at 12 mph 18 km/h. Gusts up to 22 mph 35 km/h.

Tuesday, September 15, 2026

Mid-Morning
Opal Weather - 2026-09-15 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-15 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Opal Weather - 2026-09-15 - Evening - Cloudy
85°F 30°C
Cloudy
Very hot with a high of 97°F 36°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling. Winds moving from the S to the ENE at 8 mph 13 km/h.

Wednesday, September 16, 2026

Mid-Morning
Opal Weather - 2026-09-16 - Morning - Overcast
76°F 25°C
Overcast
Mid-Afternoon
Opal Weather - 2026-09-16 - Afternoon - Overcast
90°F 32°C
Overcast
Early-Evening
Opal Weather - 2026-09-16 - Evening - Overcast
83°F 28°C
Overcast
Very hot with temperatures reaching 90°F 32°C, overcast throughout the day, with lower humidity and steady pressure. Winds swinging from the NE to the ESE at 12 mph 19 km/h. Gusts up to 20 mph 32 km/h.

Thursday, September 17, 2026

Mid-Morning
Opal Weather - 2026-09-17 - Morning - Sunny
80°F 27°C
Sunny
Mid-Afternoon
Opal Weather - 2026-09-17 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Opal Weather - 2026-09-17 - Evening - Overcast
78°F 25°C
Overcast
Balmy with temperatures reaching 88°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the W to the NE at 13 mph 21 km/h. Gusts up to 23 mph 37 km/h.

Friday, September 18, 2026

Mid-Morning
Opal Weather - 2026-09-18 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Opal Weather - 2026-09-18 - Afternoon - Overcast
82°F 28°C
Overcast
Early-Evening
Opal Weather - 2026-09-18 - Evening - Overcast
74°F 23°C
Overcast
Quite warm around 82°F 28°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds turning from the SE to the ESE at 15 mph 23 km/h. Gusts up to 25 mph 40 km/h.

Saturday, September 19, 2026

Mid-Morning
Opal Weather - 2026-09-19 - Morning - Overcast
43°F 6°C
Overcast
Mid-Afternoon
Opal Weather - 2026-09-19 - Afternoon - Overcast
49°F 9°C
Overcast
Early-Evening
Opal Weather - 2026-09-19 - Evening - Partly Cloudy
48°F 9°C
Partly Cloudy
Cool and brisk at 49°F 9°C, overcast through the afternoon, turning sunny this evening, with lower humidity and barometric pressure rising. Winds decreasing from W 36 mph 58 km/h to NNW 17 mph 27 km/h. Gusts up to 32 mph 50 km/h.

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Weather by the Numbers

Sun, 6th
Opal SD Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 94°F 35°C
Lo: 71°F 22°C
Sunrise 06:19 AM
Sunset 07:19 PM
Wind SSE 14 mph22 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 0% *
Humidity 30%
Mon, 7th
Opal SD Weather - Monday, Sep 7, 2026 - Overcast
Hi: 92°F 33°C
Lo: 75°F 24°C
Sunrise 06:20 AM
Sunset 07:17 PM
Wind WSW 21 mph33 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 29.59 in1002 mb
POP 9% *
Humidity 28%
Tue, 8th
Opal SD Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 82°F 28°C
Lo: 62°F 17°C
Sunrise 06:21 AM
Sunset 07:15 PM
Wind WNW 24 mph38 km/h
Dew Point 35°F2°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 21%
Wed, 9th
Opal SD Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 82°F 28°C
Lo: 56°F 13°C
Sunrise 06:23 AM
Sunset 07:13 PM
Wind S 4 mph7 km/h
Dew Point 39°F4°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 9% *
Humidity 26%
Thu, 10th
Opal SD Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 92°F 33°C
Lo: 62°F 17°C
Sunrise 06:24 AM
Sunset 07:11 PM
Wind SW 10 mph16 km/h
Dew Point 28°F-2°C
uv Index 7
Barometric Pressure 29.83 in1010 mb
POP 0% *
Humidity 12%
Fri, 11th
Opal SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 85°F 29°C
Lo: 58°F 15°C
Sunrise 06:25 AM
Sunset 07:10 PM
Wind NW 23 mph38 km/h
Dew Point 33°F1°C
uv Index 7
Barometric Pressure 29.59 in1002 mb
POP 1% *
Humidity 16%
Sat, 12th
Opal SD Weather - Saturday, Sep 12, 2026 - Light Rain Shower
Hi: 57°F 14°C
Lo: 49°F 9°C
Sunrise 06:26 AM
Sunset 07:08 PM
Wind N 3 mph4 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 67% *
Humidity 79%
Sun, 13th
Opal SD Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 63°F 17°C
Lo: 47°F 8°C
Sunrise 06:27 AM
Sunset 07:06 PM
Wind N 3 mph5 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 39%
Mon, 14th
Opal SD Weather - Monday, Sep 14, 2026 - Sunny
Hi: 75°F 24°C
Lo: 51°F 11°C
Sunrise 06:29 AM
Sunset 07:04 PM
Wind SSE 15 mph24 km/h
Dew Point 35°F2°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 0% *
Humidity 27%
Tue, 15th
Opal SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 97°F 36°C
Lo: 55°F 13°C
Sunrise 06:30 AM
Sunset 07:02 PM
Wind WSW 6 mph10 km/h
Dew Point 52°F11°C
uv Index 8
Barometric Pressure 29.68 in1005 mb
POP 1% *
Humidity 30%
Wed, 16th
Opal SD Weather - Wednesday, Sep 16, 2026 - Partly Cloudy
Hi: 90°F 32°C
Lo: 70°F 21°C
Sunrise 06:31 AM
Sunset 07:00 PM
Wind E 9 mph14 km/h
Dew Point 49°F10°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 4% *
Humidity 29%
Thu, 17th
Opal SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 88°F 31°C
Lo: 69°F 21°C
Sunrise 06:32 AM
Sunset 06:58 PM
Wind WNW 11 mph18 km/h
Dew Point 47°F8°C
uv Index 8
Barometric Pressure 29.71 in1006 mb
POP 1% *
Humidity 25%
Fri, 18th
Opal SD Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 82°F 28°C
Lo: 67°F 19°C
Sunrise 06:33 AM
Sunset 06:56 PM
Wind SSE 22 mph35 km/h
Dew Point 57°F14°C
uv Index 6
Barometric Pressure 29.65 in1004 mb
POP 17% *
Humidity 43%
Sat, 19th
Opal SD Weather - Saturday, Sep 19, 2026 - Light Rain Shower
Hi: 65°F 19°C
Lo: 43°F 6°C
Sunrise 06:35 AM
Sunset 06:54 PM
Wind WNW 38 mph61 km/h
Dew Point 39°F4°C
uv Index 2
Barometric Pressure 29.97 in1015 mb
POP 47% *
Humidity 79%
* POP = Probability of Precipitation. Data for 12:00 PM.