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Castle Rock SD Weather - Clear - 53°F
Clear
53°F
Updated 1:02 am
Feels Like 51°F
Humidity 43%
Wind N 0 mph
Barometer  30.16 in
Dew Point 32°F
Castle Rock SD Weather - Clear - 12°C
Clear
12°C
Updated 1:02 am
Feels Like 11°C
Humidity 43%
Wind N 0 km/h
Barometer  102.1 kPa
Dew Point 0°C
Castle Rock, SD Weather and Current Conditionscastle rock sd weather forecast

Castle Rock, SD Weather Forecast

Castle Rock South Dakota WeatherCastle Rock, South Dakota Weather Weather Forecast
14 Day API Castle Rock, SD Weather Forecast. Note: Our 7 day Castle Rock, South Dakota weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Castle Rock, SD Weather Forecast Dated: 102 AM Thu Sep 10 2026
Expect a mild stretch with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Thursday, September 10, 2026

Mid-Morning
Castle Rock Weather - 2026-09-10 - Morning - Sunny
72°F 22°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-10 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-10 - Evening - Sunny
83°F 28°C
Sunny
Very hot with temperatures reaching 93°F 34°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the WSW to the SE at 7 mph 11 km/h.

Friday, September 11, 2026

Mid-Morning
Castle Rock Weather - 2026-09-11 - Morning - Overcast
76°F 24°C
Overcast
Mid-Afternoon
Castle Rock Weather - 2026-09-11 - Afternoon - Overcast
85°F 30°C
Overcast
Early-Evening
Castle Rock Weather - 2026-09-11 - Evening - Overcast
71°F 21°C
Overcast
Balmy with temperatures reaching 85°F 30°C, overcast throughout the day, with increasing humidity and barometric pressure rising. Winds switching from the WNW to the N at 18 mph 29 km/h. Gusts up to 29 mph 46 km/h.

Saturday, September 12, 2026

Mid-Morning
Castle Rock Weather - 2026-09-12 - Morning - Overcast
58°F 14°C
Overcast
Mid-Afternoon
Castle Rock Weather - 2026-09-12 - Afternoon - Overcast
70°F 21°C
Overcast
Early-Evening
Castle Rock Weather - 2026-09-12 - Evening - Cloudy
65°F 19°C
Cloudy
Enjoyable around 70°F 21°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds increasing from the ESE at 4 mph 7 km/h to E at 17 mph 28 km/h. Gusts up to 25 mph 41 km/h.

Sunday, September 13, 2026

Mid-Morning
Castle Rock Weather - 2026-09-13 - Morning - Light Showers
54°F 12°C
Light Showers
Mid-Afternoon
Castle Rock Weather - 2026-09-13 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Castle Rock Weather - 2026-09-13 - Evening - Light Showers
61°F 16°C
Light Showers
Mild temperatures up to 68°F 20°C, rounds of showers morning and night, dry in between, with steady humidity and barometric pressure falling. Winds out of the ESE at 26 mph 42 km/h. Gusts up to 32 mph 51 km/h.

Monday, September 14, 2026

Mid-Morning
Castle Rock Weather - 2026-09-14 - Morning - Sunny
53°F 12°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-14 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-14 - Evening - Sunny
54°F 12°C
Sunny
Refreshing around 66°F 19°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds shifting from the WNW to the NW at 17 mph 28 km/h. Gusts up to 27 mph 44 km/h.

Tuesday, September 15, 2026

Mid-Morning
Castle Rock Weather - 2026-09-15 - Morning - Partly Cloudy
57°F 14°C
Partly Cloudy
Mid-Afternoon
Castle Rock Weather - 2026-09-15 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-15 - Evening - Sunny
65°F 18°C
Sunny
Pleasant near 70°F 21°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling. Winds turning from the WNW to the ESE at 12 mph 19 km/h. Gusts up to 21 mph 33 km/h.

Wednesday, September 16, 2026

Mid-Morning
Castle Rock Weather - 2026-09-16 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Castle Rock Weather - 2026-09-16 - Afternoon - Partly Cloudy
76°F 24°C
Partly Cloudy
Early-Evening
Castle Rock Weather - 2026-09-16 - Evening - Scattered Showers
66°F 19°C
Scattered Showers
Comfortable with temperatures reaching 76°F 24°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds picking up from SE at 11 mph 18 km/h to NW at 22 mph 35 km/h. Gusts up to 26 mph 41 km/h.

Thursday, September 17, 2026

Mid-Morning
Castle Rock Weather - 2026-09-17 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-17 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-17 - Evening - Sunny
62°F 17°C
Sunny
Enjoyable around 68°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds tapering down from NW 17 mph 27 km/h to ESE 5 mph 7 km/h.

Friday, September 18, 2026

Mid-Morning
Castle Rock Weather - 2026-09-18 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-18 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-18 - Evening - Sunny
71°F 22°C
Sunny
Warm temperatures up to 80°F 27°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the WNW to the E at 5 mph 8 km/h.

Saturday, September 19, 2026

Mid-Morning
Castle Rock Weather - 2026-09-19 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-19 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-19 - Evening - Sunny
76°F 24°C
Sunny
Very warm with a high of 87°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds out of the ESE at 9 mph 15 km/h.

Sunday, September 20, 2026

Mid-Morning
Castle Rock Weather - 2026-09-20 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-20 - Afternoon - Partly Cloudy
98°F 37°C
Partly Cloudy
Early-Evening
Castle Rock Weather - 2026-09-20 - Evening - Overcast
80°F 27°C
Overcast
Very hot with temperatures reaching 98°F 37°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds building from ESE at 5 mph 9 km/h to NNW at 15 mph 24 km/h. Gusts up to 23 mph 37 km/h.

Monday, September 21, 2026

Mid-Morning
Castle Rock Weather - 2026-09-21 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-21 - Afternoon - Partly Cloudy
90°F 32°C
Partly Cloudy
Early-Evening
Castle Rock Weather - 2026-09-21 - Evening - Sunny
82°F 28°C
Sunny
Hot and sweltering around 90°F 32°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds increasing from the SSE at 6 mph 9 km/h to SE at 18 mph 29 km/h. Gusts up to 28 mph 45 km/h.

Tuesday, September 22, 2026

Mid-Morning
Castle Rock Weather - 2026-09-22 - Morning - Overcast
72°F 22°C
Overcast
Mid-Afternoon
Castle Rock Weather - 2026-09-22 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-22 - Evening - Partly Cloudy
72°F 22°C
Partly Cloudy
Quite warm around 81°F 27°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure rising. Winds moving from the NW to the NNE at 15 mph 24 km/h. Gusts up to 21 mph 33 km/h.

Wednesday, September 23, 2026

Mid-Morning
Castle Rock Weather - 2026-09-23 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Castle Rock Weather - 2026-09-23 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Castle Rock Weather - 2026-09-23 - Evening - Sunny
65°F 19°C
Sunny
Mild temperatures up to 70°F 21°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the N to the SE at 12 mph 19 km/h. Gusts up to 20 mph 32 km/h.

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Weather by the Numbers

Thu, 10th
Castle Rock SD Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 93°F 34°C
Lo: 54°F 12°C
Sunrise 06:27 AM
Sunset 07:14 PM
Wind SSE 6 mph9 km/h
Dew Point 28°F-2°C
uv Index 6
Barometric Pressure 29.77 in1008 mb
POP 0% *
Humidity 12%
Fri, 11th
Castle Rock SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 87°F 30°C
Lo: 60°F 15°C
Sunrise 06:28 AM
Sunset 07:12 PM
Wind WNW 19 mph30 km/h
Dew Point 32°F0°C
uv Index 6
Barometric Pressure 29.59 in1002 mb
POP 0% *
Humidity 15%
Sat, 12th
Castle Rock SD Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 71°F 22°C
Lo: 54°F 12°C
Sunrise 06:29 AM
Sunset 07:10 PM
Wind E 8 mph13 km/h
Dew Point 39°F4°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 9% *
Humidity 41%
Sun, 13th
Castle Rock SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 70°F 21°C
Lo: 54°F 12°C
Sunrise 06:30 AM
Sunset 07:08 PM
Wind ESE 22 mph36 km/h
Dew Point 50°F10°C
uv Index 2
Barometric Pressure 29.77 in1008 mb
POP 20% *
Humidity 74%
Mon, 14th
Castle Rock SD Weather - Monday, Sep 14, 2026 - Sunny
Hi: 66°F 19°C
Lo: 47°F 8°C
Sunrise 06:31 AM
Sunset 07:06 PM
Wind WNW 23 mph37 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 34%
Tue, 15th
Castle Rock SD Weather - Tuesday, Sep 15, 2026 - Partly Cloudy
Hi: 70°F 21°C
Lo: 45°F 7°C
Sunrise 06:32 AM
Sunset 07:04 PM
Wind NNW 9 mph14 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 30.18 in1022 mb
POP 3% *
Humidity 30%
Wed, 16th
Castle Rock SD Weather - Wednesday, Sep 16, 2026 - Overcast
Hi: 76°F 24°C
Lo: 56°F 13°C
Sunrise 06:34 AM
Sunset 07:02 PM
Wind NW 8 mph12 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 10% *
Humidity 44%
Thu, 17th
Castle Rock SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 68°F 20°C
Lo: 52°F 11°C
Sunrise 06:35 AM
Sunset 07:00 PM
Wind NW 11 mph17 km/h
Dew Point 33°F0°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 31%
Fri, 18th
Castle Rock SD Weather - Friday, Sep 18, 2026 - Sunny
Hi: 80°F 27°C
Lo: 52°F 11°C
Sunrise 06:36 AM
Sunset 06:58 PM
Wind NW 11 mph17 km/h
Dew Point 25°F-4°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 0% *
Humidity 15%
Sat, 19th
Castle Rock SD Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 87°F 31°C
Lo: 54°F 12°C
Sunrise 06:37 AM
Sunset 06:57 PM
Wind ESE 8 mph13 km/h
Dew Point 24°F-5°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 12%
Sun, 20th
Castle Rock SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 98°F 37°C
Lo: 63°F 17°C
Sunrise 06:38 AM
Sunset 06:55 PM
Wind SE 17 mph27 km/h
Dew Point 26°F-3°C
uv Index 8
Barometric Pressure 29.65 in1004 mb
POP 1% *
Humidity 10%
Mon, 21st
Castle Rock SD Weather - Monday, Sep 21, 2026 - Overcast
Hi: 90°F 32°C
Lo: 64°F 18°C
Sunrise 06:40 AM
Sunset 06:53 PM
Wind SE 10 mph16 km/h
Dew Point 37°F3°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 9% *
Humidity 17%
Tue, 22nd
Castle Rock SD Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 81°F 27°C
Lo: 64°F 18°C
Sunrise 06:41 AM
Sunset 06:51 PM
Wind NNW 12 mph19 km/h
Dew Point 43°F6°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 28%
Wed, 23rd
Castle Rock SD Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 70°F 21°C
Lo: 57°F 14°C
Sunrise 06:42 AM
Sunset 06:49 PM
Wind N 5 mph8 km/h
Dew Point 32°F-0°C
uv Index 5
Barometric Pressure 30.47 in1032 mb
POP 1% *
Humidity 28%
* POP = Probability of Precipitation. Data for 12:00 PM.