Weather forecast for tomorrowInterior, SD

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 73°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphN 0°
  • Humidity: 41%
  • UV index: 3
  • Sunrise: 7:06 am MDT
  • Sunset: 5:59 pm MDT
  • ▼
Tomorrow, on Sunday, October 18, sunshine and minimal clouds are also in the outlook.
Day and night temperatures will contrast sharply, ranging from a peak of a temperate 73.4°F to a low of a wintry 35.6°F.
Tomorrow, expect conditions that are warmer than normal, with a temperature that reflects September's typical maximum of 77.5°F.
Sunrise will be at 7:06 am and sunset at 5:59 pm; tomorrow's daylight will last for 10h and 53min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 72°C.
Coldest hour: 6 am 43°C.

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 54°F
  • Feels like:
    50°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphWSW 239°
  • Humidity: 52%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphWSW 258°
  • Humidity: 59%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphW 269°
  • Humidity: 69%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphW 278°
  • Humidity: 74%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:06 am
  • 8 am
  • 45°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphWNW 292°
  • Humidity: 72%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphN 349°
  • Humidity: 43%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphN 10°
  • Humidity: 32%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphNNE 18°
  • Humidity: 28%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphNNE 30°
  • Humidity: 29%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:59 pm
  • 6 pm
  • 63°F
  • Feels like:
    61°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNE 38°
  • Humidity: 38%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    52°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 31°
  • Humidity: 54%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNNE 31°
  • Humidity: 57%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, bright skies and dry conditions are anticipated.
The temperature will vary between a minimum of 42.8°F and a maximum of 71.6°F. The warmest part of the day will be at 2 pm and 3 pm.
The highest temperature tomorrow will resemble September's average maximum of 77.5°F more than October's average. The expected low will be more comparable to what’s common in November than the current October average of 43°F.
Updated: Oct 18, 2026 @ 00:49:33 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunny skies and pleasant visibility are expected.

Tomorrow, the maximum temperature will be 73.4°F, while the minimum temperature will be 35.6°F.
Tomorrow, the highest temperature will be notably higher than the average maximum of 59.2°F in October. The lowest temperature tomorrow will be a couple of degrees lower than the average low temperature.

On Sunday, in Interior, sunrise will be at 7:06 am and sunset at 5:59 pm (MDT).

In Interior, the length of the day tomorrow will be 10h and 53min.