Weather forecast for tomorrow
Altamont, SD

Weather forecast for tomorrow

Friday, Jun 20.

Mostly Sunny
5:38 am

9:18 pm
CDT
Mostly Sunny
90°F / 73°F
  • Wind: 17mph SSE
  • Humidity: 68%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 8
Tomorrow, on Friday, blue skies and warm sunshine will define the conditions.
Temperatures will oscillate between a hot 89.6°F at their highest and a moderately hot 73.4°F at their lowest.
The maximum heat index, which modifies the air temperature to account for humidity, is calculated to be an extremely hot 104°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Forecast models suggest hotter conditions, with a peak that mirrors July's climate average rather than June's.
Sunrise will be at 5:38 am and sunset at 9:18 pm; tomorrow's daylight will last for 15h and 40min.

Frequently asked questions

What is the weather forecast for Altamont for tomorrow?
On Friday, in Altamont, mainly sunny conditions will dominate the day.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 89.6°F, while the lowest temperature will be 73.4°F. The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at 104°F.
The highest temperature will be uncommonly higher than the average maximum of 75.7°F in June. The lowest temperature will be also noticeably higher than the average low of 58.6°F.
When is the sunrise / sunset tomorrow?
On Friday, in Altamont, sunrise will be at 5:38 am and sunset at 9:18 pm (CDT).
How long will the day be tomorrow?
In Altamont, tomorrow, there will be 15h and 40min of daylight.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph S
  • Pressure: 29.68"Hg
  • Humidity: 68%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 70°F
  • Feels like:
    70°F
Mostly Clear
Mostly Clear
  • Wind: 13mph S
  • Pressure: 29.65"Hg
  • Humidity: 74%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 68°F
  • Feels like:
    68°F
Clear
Clear
  • Wind: 11mph S
  • Pressure: 29.62"Hg
  • Humidity: 80%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:38 am
6 am
  • 66°F
  • Feels like:
    68°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph S
  • Pressure: 29.62"Hg
  • Humidity: 85%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
8 am
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Wind: 7mph SSE
  • Pressure: 29.62"Hg
  • Humidity: 85%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 75°F
  • Feels like:
    77°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph SE
  • Pressure: 29.59"Hg
  • Humidity: 77%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 81°F
  • Feels like:
    84°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph SE
  • Pressure: 29.53"Hg
  • Humidity: 66%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 84°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph SSE
  • Pressure: 29.5"Hg
  • Humidity: 59%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 86°F
  • Feels like:
    91°F
Sunny
Sunny
  • Wind: 16mph SSE
  • Pressure: 29.44"Hg
  • Humidity: 55%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 88°F
  • Feels like:
    93°F
Sunny
Sunny
  • Wind: 16mph SSE
  • Pressure: 29.38"Hg
  • Humidity: 56%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 86°F
  • Feels like:
    91°F
Sunny
Sunny
  • Wind: 14mph SSE
  • Pressure: 29.32"Hg
  • Humidity: 58%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 9:18 pm
10 pm
  • 82°F
  • Feels like:
    86°F
Mostly Clear
Mostly Clear
  • Wind: 12mph S
  • Pressure: 29.32"Hg
  • Humidity: 67%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Friday, a combination of dry and sunny and cloud-filled weather is forecasted.
The temperature will be between a minimum of 66.2°F and a maximum of 87.8°F. The hottest part of the day will be from 5 pm to 7 pm.
The expected temperature aligns more with July's average high than with June's 75.7°F. Forecast models suggest a low also more comparable to July's typical minimum of 62.1°F than June's usual 58.6°F.
Updated: Jun 19, 2025 @ 14:30:21 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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