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Frederick SD Weather - Clear - 76°F
Clear
76°F
Updated 4:21 pm
Feels Like 76°F
Humidity 81%
Wind S 25 mph
Barometer  29.75 in
Dew Point 70°F
Frederick SD Weather - Clear - 24°C
Clear
24°C
Updated 4:21 pm
Feels Like 25°C
Humidity 81%
Wind S 40 km/h
Barometer  100.7 kPa
Dew Point 21°C
Frederick, SD Weather and Current Conditionsfrederick sd weather forecast

Frederick, SD Weather Forecast

Frederick South Dakota WeatherFrederick, South Dakota Weather Weather Forecast
14 day API Frederick, SD weather forecast. Note. Our 7-day weather forecast for Frederick, South Dakota is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Frederick, SD Weather Forecast Dated: 421 PM Mon Sep 07 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.

Monday, September 7, 2026

Mid-Morning
Frederick Weather - 2026-09-07 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Frederick Weather - 2026-09-07 - Afternoon - Drizzle
76°F 24°C
Drizzle
Early-Evening
Frederick Weather - 2026-09-07 - Evening - Drizzle
75°F 24°C
Drizzle
Pleasant near 76°F 24°C, drier morning followed by showers lasting through evening, with steady humidity and barometric pressure falling. Winds out of the S at 19 mph 30 km/h. Gusts up to 28 mph 46 km/h.

Tuesday, September 8, 2026

Mid-Morning
Frederick Weather - 2026-09-08 - Morning - Overcast
72°F 22°C
Overcast
Mid-Afternoon
Frederick Weather - 2026-09-08 - Afternoon - Overcast
85°F 30°C
Overcast
Early-Evening
Frederick Weather - 2026-09-08 - Evening - Sunny
79°F 27°C
Sunny
Balmy with temperatures reaching 85°F 30°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds switching from the NW to the WNW at 13 mph 21 km/h.

Wednesday, September 9, 2026

Mid-Morning
Frederick Weather - 2026-09-09 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
Frederick Weather - 2026-09-09 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Frederick Weather - 2026-09-09 - Evening - Sunny
77°F 25°C
Sunny
Enjoyable around 79°F 26°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the WNW to the N at 12 mph 18 km/h. Gusts up to 21 mph 34 km/h.

Thursday, September 10, 2026

Mid-Morning
Frederick Weather - 2026-09-10 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Frederick Weather - 2026-09-10 - Afternoon - Partly Cloudy
84°F 29°C
Partly Cloudy
Early-Evening
Frederick Weather - 2026-09-10 - Evening - Sunny
83°F 28°C
Sunny
Warm temperatures up to 84°F 29°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds swinging from the SSW to the S at 11 mph 18 km/h.

Friday, September 11, 2026

Mid-Morning
Frederick Weather - 2026-09-11 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Frederick Weather - 2026-09-11 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Frederick Weather - 2026-09-11 - Evening - Sunny
65°F 19°C
Sunny
Mild with a high of 78°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the N to the NNW at 22 mph 36 km/h. Gusts up to 29 mph 47 km/h.

Saturday, September 12, 2026

Mid-Morning
Frederick Weather - 2026-09-12 - Morning - Partly Cloudy
56°F 13°C
Partly Cloudy
Mid-Afternoon
Frederick Weather - 2026-09-12 - Afternoon - Overcast
69°F 21°C
Overcast
Early-Evening
Frederick Weather - 2026-09-12 - Evening - Sunny
68°F 20°C
Sunny
Pleasant near 69°F 21°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds turning from the NW to the NE at 4 mph 6 km/h.

Sunday, September 13, 2026

Mid-Morning
Frederick Weather - 2026-09-13 - Morning - Light Showers
51°F 11°C
Light Showers
Mid-Afternoon
Frederick Weather - 2026-09-13 - Afternoon - Overcast
57°F 14°C
Overcast
Early-Evening
Frederick Weather - 2026-09-13 - Evening - Overcast
53°F 12°C
Overcast
Chilly near 57°F 14°C, early showers breaking for a drier afternoon, with steady humidity and steady pressure. Winds switching from the ENE to the E at 11 mph 18 km/h. Gusts up to 23 mph 36 km/h.

Monday, September 14, 2026

Mid-Morning
Frederick Weather - 2026-09-14 - Morning - Light Showers
53°F 12°C
Light Showers
Mid-Afternoon
Frederick Weather - 2026-09-14 - Afternoon - Scattered Showers
55°F 13°C
Scattered Showers
Early-Evening
Frederick Weather - 2026-09-14 - Evening - Scattered Showers
55°F 13°C
Scattered Showers
Crisp with a high near 55°F 13°C, scattered downpours possible, with steady humidity and steady pressure.

Tuesday, September 15, 2026

Mid-Morning
Frederick Weather - 2026-09-15 - Morning - Overcast
51°F 11°C
Overcast
Mid-Afternoon
Frederick Weather - 2026-09-15 - Afternoon - Partly Cloudy
64°F 18°C
Partly Cloudy
Early-Evening
Frederick Weather - 2026-09-15 - Evening - Sunny
63°F 17°C
Sunny
Refreshing around 64°F 18°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the NW to the NNW at 12 mph 19 km/h. Gusts up to 20 mph 32 km/h.

Wednesday, September 16, 2026

Mid-Morning
Frederick Weather - 2026-09-16 - Morning - Sunny
48°F 9°C
Sunny
Mid-Afternoon
Frederick Weather - 2026-09-16 - Afternoon - Sunny
58°F 14°C
Sunny
Early-Evening
Frederick Weather - 2026-09-16 - Evening - Sunny
66°F 19°C
Sunny
Mildly cool near 58°F 14°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the NNW to the SSE at 8 mph 13 km/h.

Thursday, September 17, 2026

Mid-Morning
Frederick Weather - 2026-09-17 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Frederick Weather - 2026-09-17 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Frederick Weather - 2026-09-17 - Evening - Sunny
76°F 25°C
Sunny
Pleasant near 77°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
Frederick Weather - 2026-09-18 - Morning - Overcast
65°F 18°C
Overcast
Mid-Afternoon
Frederick Weather - 2026-09-18 - Afternoon - Light Showers
74°F 23°C
Light Showers
Early-Evening
Frederick Weather - 2026-09-18 - Evening - Light Showers
73°F 23°C
Light Showers
Comfortable with temperatures reaching 74°F 23°C, dry early, with showers continuing through afternoon and evening, with lower humidity and steady pressure.

Saturday, September 19, 2026

Mid-Morning
Frederick Weather - 2026-09-19 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Frederick Weather - 2026-09-19 - Afternoon - Overcast
60°F 15°C
Overcast
Early-Evening
Frederick Weather - 2026-09-19 - Evening - Partly Cloudy
55°F 13°C
Partly Cloudy
Refreshing around 60°F 15°C, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure rising. Winds shifting from the N to the NNE at 13 mph 21 km/h. Gusts up to 21 mph 33 km/h.

Sunday, September 20, 2026

Mid-Morning
Frederick Weather - 2026-09-20 - Morning - Overcast
44°F 7°C
Overcast
Mid-Afternoon
Frederick Weather - 2026-09-20 - Afternoon - Sunny
62°F 16°C
Sunny
Early-Evening
Frederick Weather - 2026-09-20 - Evening - Partly Cloudy
64°F 18°C
Partly Cloudy
Mildly cool near 62°F 16°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the SE to the SSE at 12 mph 19 km/h. Gusts up to 24 mph 39 km/h.

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Weather by the Numbers

Mon, 7th
Frederick SD Weather - Monday, Sep 7, 2026 - Overcast
Hi: 77°F 25°C
Lo: 64°F 18°C
Sunrise 07:03 AM
Sunset 08:01 PM
Wind SSE 18 mph30 km/h
Dew Point 66°F19°C
uv Index 4
Barometric Pressure 29.77 in1008 mb
POP 25% *
Humidity 83%
Tue, 8th
Frederick SD Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 85°F 30°C
Lo: 69°F 21°C
Sunrise 07:04 AM
Sunset 07:59 PM
Wind WNW 19 mph30 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 29.88 in1012 mb
POP 9% *
Humidity 19%
Wed, 9th
Frederick SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 79°F 26°C
Lo: 60°F 15°C
Sunrise 07:06 AM
Sunset 07:57 PM
Wind WNW 16 mph26 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 1% *
Humidity 32%
Thu, 10th
Frederick SD Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 87°F 30°C
Lo: 61°F 16°C
Sunrise 07:07 AM
Sunset 07:55 PM
Wind SSW 11 mph18 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 9% *
Humidity 24%
Fri, 11th
Frederick SD Weather - Friday, Sep 11, 2026 - Partly Cloudy
Hi: 78°F 26°C
Lo: 56°F 13°C
Sunrise 07:08 AM
Sunset 07:53 PM
Wind N 20 mph32 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 29.8 in1009 mb
POP 2% *
Humidity 31%
Sat, 12th
Frederick SD Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 71°F 21°C
Lo: 52°F 11°C
Sunrise 07:09 AM
Sunset 07:51 PM
Wind NW 9 mph14 km/h
Dew Point 30°F-1°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 5% *
Humidity 29%
Sun, 13th
Frederick SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 62°F 17°C
Lo: 50°F 10°C
Sunrise 07:11 AM
Sunset 07:49 PM
Wind E 13 mph20 km/h
Dew Point 37°F3°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 11% *
Humidity 50%
Mon, 14th
Frederick SD Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 56°F 13°C
Lo: 51°F 11°C
Sunrise 07:12 AM
Sunset 07:47 PM
Wind ENE 4 mph6 km/h
Dew Point 52°F11°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 54% *
Humidity 94%
Tue, 15th
Frederick SD Weather - Tuesday, Sep 15, 2026 - Partly Cloudy
Hi: 66°F 19°C
Lo: 48°F 9°C
Sunrise 07:13 AM
Sunset 07:46 PM
Wind WNW 13 mph21 km/h
Dew Point 41°F5°C
uv Index 4
Barometric Pressure 30.18 in1022 mb
POP 6% *
Humidity 56%
Wed, 16th
Frederick SD Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 70°F 21°C
Lo: 46°F 8°C
Sunrise 07:14 AM
Sunset 07:44 PM
Wind NNW 10 mph17 km/h
Dew Point 26°F-3°C
uv Index 4
Barometric Pressure 30.42 in1030 mb
POP 1% *
Humidity 36%
Thu, 17th
Frederick SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 80°F 27°C
Lo: 56°F 13°C
Sunrise 07:16 AM
Sunset 07:42 PM
Wind SE 6 mph9 km/h
Dew Point 37°F3°C
uv Index 6
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 30%
Fri, 18th
Frederick SD Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 77°F 25°C
Lo: 61°F 16°C
Sunrise 07:17 AM
Sunset 07:40 PM
Wind ESE 7 mph12 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 29.77 in1008 mb
POP 23% *
Humidity 50%
Sat, 19th
Frederick SD Weather - Saturday, Sep 19, 2026 - Partly Cloudy
Hi: 62°F 17°C
Lo: 49°F 9°C
Sunrise 07:18 AM
Sunset 07:38 PM
Wind N 17 mph27 km/h
Dew Point 28°F-2°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 8% *
Humidity 35%
Sun, 20th
Frederick SD Weather - Sunday, Sep 20, 2026 - Cloudy
Hi: 64°F 18°C
Lo: 42°F 5°C
Sunrise 07:19 AM
Sunset 07:36 PM
Wind SSE 12 mph20 km/h
Dew Point 27°F-3°C
uv Index 3
Barometric Pressure 30.36 in1028 mb
POP 2% *
Humidity 36%
* POP = Probability of Precipitation. Data for 12:00 PM.