Weather forecast for todayHarrison, SD

Weather forecast for today

Current condition 1:15 am CDT

  • 64°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 13mphSE 140°
  • Humidity: 71%
  • Dewpoint: 55°F
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Harrison, currently, the sky is partially covered with clouds, offering glimpses of blue.
The temperature is a comfortable 64.4°F, the feels-like temperature is nearly identical at 62.6°F. The current temperature is relatively far from today's maximum-forecasted 82.4°F.

Friday Oct 23, 2026

  • 82°F
  • 54°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 24mphSSE 163°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:58 am CDT
  • Sunset: 6:38 pm CDT
  • ▼
Today, expect brisk winds and partly cloudy conditions.
A high of a warm 82.4°F during the day contrasts markedly with a low of a cool 53.6°F at night.
The maximum heat index, which combines air temperature and relative humidity, is appraised at 84.2°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 76.3°F.
Sunrise will be at 7:58 am and sunset at 6:38 pm; the daylight will last for 10h and 40min.

Hourly overview

Hourly temperatures

Warmest hour: 5 pm 81°C.
Coldest period: 5 am - 8 am 63°C.

Chance of precipitation

Highest chance: 2 pm - 5 pm 15%.

Hourly weather forecast

  • 2 am
  • 64°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphSSE 156°
  • Humidity: 70%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 63°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 14mphSSE 155°
  • Humidity: 71%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 63°F
  • Feels like:
    61°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 15mphSSE 154°
  • Humidity: 70%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:58 am
  • 8 am
  • 63°F
  • Feels like:
    59°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 16mphSSE 155°
  • Humidity: 73%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 64°F
  • Feels like:
    63°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 18mphSSE 158°
  • Humidity: 68%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 73°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 19mphSSE 163°
  • Humidity: 54%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 79°F
  • Feels like:
    79°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 22mphSSE 165°
  • Humidity: 44%
  • Pressure: 29.77"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 81°F
  • Feels like:
    81°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 24mphS 170°
  • Humidity: 40%
  • Pressure: 29.74"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 79°F
  • Feels like:
    79°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 19mphS 171°
  • Humidity: 41%
  • Pressure: 29.74"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:38 pm
  • 8 pm
  • 72°F
  • Feels like:
    72°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphSSE 168°
  • Humidity: 49%
  • Pressure: 29.77"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphS 171°
  • Humidity: 53%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Harrison, overcast weather is expected.
The temperature will vary between the lowest temperature of 60.8°F and the highest temperature of 80.6°F. The warmest part of the day will be at 4 pm and 5 pm.
The day’s peak temperature will reflect September's norm of 76.3°F more than October's 59.7°F. Forecasts show a temperature also more consistent with September's average minimum of 55.4°F rather than the October average of 42.4°F.
Updated: Oct 23, 2026 @ 06:15:43 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (1:15 am CDT) is 64.4°F.

On Friday, in Harrison, patchy clouds and steady winds will continue.

Today, the maximum temperature will be 82.4°F, while the minimum temperature will be 53.6°F. The maximum heat index, which measures the combined effect of heat and moisture, is evaluated at 84.2°F.
The maximum temperature will be noticeably higher than the average highest temperature of 59.7°F in October. The lowest temperature will be also uncommonly higher than the average low of 42.4°F.

On Friday, in Harrison, sunrise will be at 7:58 am and sunset at 6:38 pm (CDT).

In Harrison, the length of the day today will be 10h and 40min.