Weather forecast for todayRalph, SD

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 5:04 pm MDT

  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 15mphSE 130°
  • Humidity: 41%
  • Dewpoint: 41°F
  • Pressure: 30.08"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, in Ralph, sunshine is pouring down, making for a beautiful day.
The temperature is an enjoyable 64.4°F. The current temperature is still far from the lowest expected temperature of 44.6°F.

Wednesday Oct 21, 2026

  • min.
  • 45°F
Mostly Clear
Mostly Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 15mphSE 142°
  • Humidity: 74%
  • UV index: 0
  • Sunrise: 7:17 am MDT
  • Sunset: 5:56 pm MDT
  • ▼
During the evening and overnight hours, a stretch of mostly clear conditions is likely.
The lowest forecasted temperature is a brisk 44.6°F.
Sunrise was at 7:17 am and sunset will be at 5:56 pm; the daylight will last for 10h and 39min.

Hourly overview

Hourly temperatures

Warmest hour: 6 pm 61°C.
Coldest hour: 1 am 48°C.

Chance of precipitation

Highest chance: 1 am 5%.

Hourly weather forecast

  • 6 pm
  • 61°F
  • Feels like:
    59°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSE 133°
  • Humidity: 50%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 pm
  • 57°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSE 130°
  • Humidity: 59%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 55°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSE 133°
  • Humidity: 64%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSE 133°
  • Humidity: 70%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSE 138°
  • Humidity: 73%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphSE 144°
  • Humidity: 76%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphSSE 150°
  • Humidity: 79%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphSSE 149°
  • Humidity: 84%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 11mphSSE 149°
  • Humidity: 86%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 3 am
  • 48°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 10mphSE 145°
  • Humidity: 86%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
During the evening and overnight hours, the weather will be unstable. The temperature will vary between the highest temperature of 60.8°F and the lowest temperature of 50°F.
Updated: Oct 21, 2026 @ 23:04:30 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 5:04 pm MDT, the temperature in Ralph is 64.4°F.

Today, in Ralph, scattered clouds may appear, but mostly clear skies will dominate.

On Wednesday, in Ralph, sunrise was at 7:17 am and sunset will be at 5:56 pm (MDT).

In Ralph, the length of the day today will be 10h and 39min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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Ralph, South Dakota, USA

  • en: Ralph, South Dakota, USA
  • es: Ralph, Dakota del Sur, EE.UU.
  • hr: Ralьf, Južna Dakota, SAD
  • mk: Ralьf, Južna Dakota, SAD
  • sr: Ralьf, Južna Dakota, SAD
  • zh: Ralph, 南达科他州, 美国
  • Latitude: 45.776667°
  • Longitude: -103.066004°
  • Elevation: 2736 ft
  • Current time: 5:04pm MDT
  • Sunrise: 7:17 am MDT
  • Sunset: 5:56 pm MDT
  • Timezone: America/Denver

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