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Ralph SD Weather - Mist - 68°F
Mist
68°F
Updated 7:48 am
Feels Like 68°F
Humidity 96%
Wind SE 15 mph
Barometer  29.91 in
Dew Point 67°F
Ralph SD Weather - Mist - 20°C
Mist
20°C
Updated 7:48 am
Feels Like 20°C
Humidity 96%
Wind SE 24 km/h
Barometer  101.2 kPa
Dew Point 19°C
Ralph, SD Weather and Current Conditionsralph sd weather forecast

Ralph, SD Weather Forecast

Ralph South Dakota WeatherRalph, South Dakota Weather Weather Forecast
14 day API Ralph, SD weather forecast. Note. Our 7-day weather forecast for Ralph, 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.
Ralph, SD Weather Forecast Dated: 748 AM Sat Sep 05 2026
Expect a very warm period 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 5, 2026

Mid-Morning
Ralph Weather - 2026-09-05 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Ralph Weather - 2026-09-05 - Afternoon - Overcast
100°F 38°C
Overcast
Early-Evening
Ralph Weather - 2026-09-05 - Evening - Sunny
78°F 26°C
Sunny
Scorching hot near 100°F 38°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds turning from the WSW to the E at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.

Sunday, September 6, 2026

Mid-Morning
Ralph Weather - 2026-09-06 - Morning - Partly Cloudy
82°F 28°C
Partly Cloudy
Mid-Afternoon
Ralph Weather - 2026-09-06 - Afternoon - Sunny
99°F 37°C
Sunny
Early-Evening
Ralph Weather - 2026-09-06 - Evening - Overcast
82°F 28°C
Overcast
Hot and sweltering around 99°F 37°C, partly cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds building from NW at 5 mph 8 km/h to SSW at 14 mph 21 km/h.

Monday, September 7, 2026

Mid-Morning
Ralph Weather - 2026-09-07 - Morning - Overcast
78°F 26°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-07 - Afternoon - Overcast
88°F 31°C
Overcast
Early-Evening
Ralph Weather - 2026-09-07 - Evening - Overcast
81°F 27°C
Overcast
Quite warm around 88°F 31°C, overcast throughout the day, with lower humidity and steady pressure. Winds moving from the S to the ENE at 5 mph 9 km/h.

Tuesday, September 8, 2026

Mid-Morning
Ralph Weather - 2026-09-08 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Ralph Weather - 2026-09-08 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Ralph Weather - 2026-09-08 - Evening - Sunny
73°F 23°C
Sunny
Mild temperatures up to 78°F 26°C, sunny throughout the day, with lower humidity and steady pressure. Winds easing from WNW 25 mph 40 km/h to W 10 mph 16 km/h.

Wednesday, September 9, 2026

Mid-Morning
Ralph Weather - 2026-09-09 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-09 - Afternoon - Overcast
81°F 27°C
Overcast
Early-Evening
Ralph Weather - 2026-09-09 - Evening - Cloudy
75°F 23°C
Cloudy
Very warm with a high of 81°F 27°C, overcast throughout the day, with lower humidity and steady pressure. Winds shifting from the NNW to the ENE at 8 mph 12 km/h.

Thursday, September 10, 2026

Mid-Morning
Ralph Weather - 2026-09-10 - Morning - Light Showers
64°F 18°C
Light Showers
Mid-Afternoon
Ralph Weather - 2026-09-10 - Afternoon - Overcast
88°F 31°C
Overcast
Early-Evening
Ralph Weather - 2026-09-10 - Evening - Overcast
80°F 27°C
Overcast
Warm and summery near 88°F 31°C, morning showers, giving way to clearing skies, with lower humidity and barometric pressure falling. Winds decreasing from SE 17 mph 28 km/h to NW 6 mph 10 km/h.

Friday, September 11, 2026

Mid-Morning
Ralph Weather - 2026-09-11 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Ralph Weather - 2026-09-11 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Ralph Weather - 2026-09-11 - Evening - Partly Cloudy
86°F 30°C
Partly Cloudy
Hot and sweltering around 93°F 34°C, sunny throughout the day, with steady humidity and steady pressure.

Saturday, September 12, 2026

Mid-Morning
Ralph Weather - 2026-09-12 - Morning - Overcast
78°F 25°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-12 - Afternoon - Light Showers
98°F 37°C
Light Showers
Early-Evening
Ralph Weather - 2026-09-12 - Evening - Overcast
85°F 30°C
Overcast
Sizzling hot with 98°F 37°C, clouds building with afternoon showers likely, with steady humidity and barometric pressure falling. Winds switching from the SSE to the NNW at 15 mph 24 km/h. Gusts up to 27 mph 43 km/h.

Sunday, September 13, 2026

Mid-Morning
Ralph Weather - 2026-09-13 - Morning - Overcast
77°F 25°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-13 - Afternoon - Overcast
85°F 29°C
Overcast
Early-Evening
Ralph Weather - 2026-09-13 - Evening - Scattered Showers
74°F 24°C
Scattered Showers
Warm temperatures up to 85°F 29°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds moving from the N to the NE at 15 mph 23 km/h.

Monday, September 14, 2026

Mid-Morning
Ralph Weather - 2026-09-14 - Morning - Light Showers
52°F 11°C
Light Showers
Mid-Afternoon
Ralph Weather - 2026-09-14 - Afternoon - Scattered Showers
53°F 12°C
Scattered Showers
Early-Evening
Ralph Weather - 2026-09-14 - Evening - Scattered Showers
53°F 12°C
Scattered Showers
Cool and brisk at 53°F 12°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the ENE to the ESE at 12 mph 19 km/h.

Tuesday, September 15, 2026

Mid-Morning
Ralph Weather - 2026-09-15 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-15 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Ralph Weather - 2026-09-15 - Evening - Overcast
66°F 19°C
Overcast
Pleasant near 68°F 20°C, overcast throughout the day, with steady humidity and steady pressure. Winds shifting from the SE to the E at 8 mph 12 km/h.

Wednesday, September 16, 2026

Mid-Morning
Ralph Weather - 2026-09-16 - Morning - Overcast
60°F 15°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-16 - Afternoon - Scattered Showers
61°F 16°C
Scattered Showers
Early-Evening
Ralph Weather - 2026-09-16 - Evening - Light Showers
62°F 17°C
Light Showers
Cool with a high near 61°F 16°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds blowing from the ESE at 13 mph 21 km/h. Gusts up to 22 mph 35 km/h.

Thursday, September 17, 2026

Mid-Morning
Ralph Weather - 2026-09-17 - Morning - Overcast
65°F 18°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-17 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Ralph Weather - 2026-09-17 - Evening - Sunny
71°F 22°C
Sunny
Enjoyable around 77°F 25°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the SSE to the ESE at 11 mph 17 km/h.

Friday, September 18, 2026

Mid-Morning
Ralph Weather - 2026-09-18 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Ralph Weather - 2026-09-18 - Afternoon - Scattered Showers
75°F 24°C
Scattered Showers
Early-Evening
Ralph Weather - 2026-09-18 - Evening - Heavy Rain At Times
71°F 22°C
Heavy Rain At Times
Mild temperatures up to 75°F 24°C, scattered downpours possible, with steady humidity and steady pressure. Winds easing from SE 20 mph 33 km/h to SE 9 mph 14 km/h.

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Weather by the Numbers

Sat, 5th
Ralph SD Weather - Saturday, Sep 5, 2026 - Patchy Rain Nearby
Hi: 100°F 38°C
Lo: 66°F 19°C
Sunrise 06:18 AM
Sunset 07:23 PM
Wind W 10 mph16 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 29.77 in1008 mb
POP 36% *
Humidity 15%
Sun, 6th
Ralph SD Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 99°F 37°C
Lo: 72°F 22°C
Sunrise 06:19 AM
Sunset 07:21 PM
Wind E 2 mph4 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 1% *
Humidity 27%
Mon, 7th
Ralph SD Weather - Monday, Sep 7, 2026 - Patchy Rain Nearby
Hi: 88°F 31°C
Lo: 71°F 22°C
Sunrise 06:20 AM
Sunset 07:19 PM
Wind W 17 mph27 km/h
Dew Point 54°F12°C
uv Index 6
Barometric Pressure 29.62 in1003 mb
POP 11% *
Humidity 34%
Tue, 8th
Ralph SD Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 79°F 26°C
Lo: 61°F 16°C
Sunrise 06:22 AM
Sunset 07:17 PM
Wind WNW 19 mph31 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 31%
Wed, 9th
Ralph SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 81°F 27°C
Lo: 58°F 14°C
Sunrise 06:23 AM
Sunset 07:15 PM
Wind NNW 8 mph13 km/h
Dew Point 37°F3°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 24%
Thu, 10th
Ralph SD Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 88°F 31°C
Lo: 61°F 16°C
Sunrise 06:24 AM
Sunset 07:13 PM
Wind SSE 15 mph23 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 10% *
Humidity 37%
Fri, 11th
Ralph SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 93°F 34°C
Lo: 68°F 20°C
Sunrise 06:25 AM
Sunset 07:11 PM
Wind S 9 mph14 km/h
Dew Point 46°F8°C
uv Index 8
Barometric Pressure 29.74 in1007 mb
POP 1% *
Humidity 23%
Sat, 12th
Ralph SD Weather - Saturday, Sep 12, 2026 - Cloudy
Hi: 98°F 37°C
Lo: 72°F 22°C
Sunrise 06:27 AM
Sunset 07:09 PM
Wind S 23 mph37 km/h
Dew Point 54°F12°C
uv Index 7
Barometric Pressure 29.59 in1002 mb
POP 5% *
Humidity 27%
Sun, 13th
Ralph SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 85°F 29°C
Lo: 66°F 19°C
Sunrise 06:28 AM
Sunset 07:07 PM
Wind N 12 mph19 km/h
Dew Point 54°F12°C
uv Index 6
Barometric Pressure 29.77 in1008 mb
POP 9% *
Humidity 36%
Mon, 14th
Ralph SD Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 65°F 19°C
Lo: 52°F 11°C
Sunrise 06:29 AM
Sunset 07:05 PM
Wind E 12 mph19 km/h
Dew Point 47°F8°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 51% *
Humidity 81%
Tue, 15th
Ralph SD Weather - Tuesday, Sep 15, 2026 - Overcast
Hi: 68°F 20°C
Lo: 53°F 11°C
Sunrise 06:30 AM
Sunset 07:03 PM
Wind SE 9 mph14 km/h
Dew Point 53°F12°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 21% *
Humidity 76%
Wed, 16th
Ralph SD Weather - Wednesday, Sep 16, 2026 - Overcast
Hi: 63°F 17°C
Lo: 58°F 15°C
Sunrise 06:32 AM
Sunset 07:01 PM
Wind ESE 12 mph19 km/h
Dew Point 59°F15°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 31% *
Humidity 92%
Thu, 17th
Ralph SD Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 77°F 25°C
Lo: 61°F 16°C
Sunrise 06:33 AM
Sunset 06:59 PM
Wind SSE 5 mph8 km/h
Dew Point 60°F16°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 18% *
Humidity 71%
Fri, 18th
Ralph SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 75°F 24°C
Lo: 64°F 18°C
Sunrise 06:34 AM
Sunset 06:57 PM
Wind SSE 17 mph27 km/h
Dew Point 63°F17°C
uv Index 5
Barometric Pressure 29.83 in1010 mb
POP 24% *
Humidity 81%
* POP = Probability of Precipitation. Data for 12:00 PM.