Weather forecast for todayRalph, SD

Weather forecast for today

Current condition 11:17 am MDT

  • 57°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 10mphSE 140°
  • Humidity: 54%
  • Dewpoint: 41°F
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
At the moment, in Ralph, the day is partly cloudy with intermittent sunshine.
The temperature is a refreshing 57.2°F, the felt air temperature is nearly identical at 55.4°F. The current temperature is a few degrees off the today's maximum of 66.2°F.

Wednesday Oct 21, 2026

  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSE 140°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 7:17 am MDT
  • Sunset: 5:56 pm MDT
  • ▼
Today, on Wednesday, October 21, expect partly sunny skies with periods of cloudiness.
Temperatures will oscillate between a breezy 66.2°F at their highest and a brisk 42.8°F at their lowest.
A high of 66.2°F is expected, which resembles September's climate average of 73°F more than October's 54.5°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: 4 pm 66°C.
Coldest period: 12 am - 2 am 48°C.

Chance of precipitation

Highest chance: 2 am 6%.

Hourly weather forecast

  • 12 pm
  • 61°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 139°
  • Humidity: 48%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 1 pm
  • 64°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSE 146°
  • Humidity: 42%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSSE 146°
  • Humidity: 40%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 3 pm
  • 66°F
  • Feels like:
    66°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSE 144°
  • Humidity: 38%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSE 138°
  • Humidity: 38%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSE 137°
  • Humidity: 42%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 5:56 pm
  • 6 pm
  • 59°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSE 131°
  • Humidity: 50%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 pm
  • 55°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSE 130°
  • Humidity: 59%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSE 133°
  • Humidity: 64%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphSE 133°
  • Humidity: 68%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphSE 139°
  • Humidity: 72%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphSE 141°
  • Humidity: 75%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Ralph, a combination of cloud-filled and bright weather is forecasted.
The temperature will be between the lowest temperature of 50°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
The day’s peak temperature will reflect September's norm of 73°F more than October's 54.5°F. The lowest temperature is expected to be relatively higher than the average minimum in October, typically 38.8°F.
Updated: Oct 21, 2026 @ 17:17:23 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (11:17 am MDT) it is 57.2°F in Ralph.

Today, clouds and sunshine will alternate throughout the day.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 42.8°F.
The highest temperature will be uncommonly higher than the average maximum of 54.5°F in October. The lowest temperature will be a few degrees higher than the average low of 38.8°F.

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

Today, the daylight will last for 10h and 39min.