Weather forecast for tomorrowAlton, ID

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 64°F
  • 28°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 17°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:41 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
Tomorrow, bright and sunny weather is also expected.
Considerable temperature fluctuations from a high of an enjoyable 64.4°F to a low of a harsh 28.4°F are anticipated.
Tomorrow, the weather pattern will resemble September more than October, with a forecast high of 64.4°F.
Sunrise will be at 7:41 am and sunset at 6:38 pm; tomorrow's daylight will last for 10h and 57min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 6 pm 61°C.
Coldest period: 3 am - 6 am 32°C.

Chance of precipitation

Highest chance: 3 am - 6 am 3%.

Hourly weather forecast

  • 12 am
  • 36°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphNE 38°
  • Humidity: 79%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 34°F
  • Feels like:
    30°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNE 37°
  • Humidity: 85%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 32°F
  • Feels like:
    28°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNE 36°
  • Humidity: 87%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 32°F
  • Feels like:
    27°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNE 41°
  • Humidity: 89%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:41 am
  • 8 am
  • 30°F
  • Feels like:
    27°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphENE 62°
  • Humidity: 93%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 43°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphE 92°
  • Humidity: 70%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSE 143°
  • Humidity: 50%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphS 190°
  • Humidity: 42%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 230°
  • Humidity: 38%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphWNW 284°
  • Humidity: 42%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:38 pm
  • 8 pm
  • 50°F
  • Feels like:
    48°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphNNE 28°
  • Humidity: 61%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 45°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphNE 41°
  • Humidity: 75%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily sun-filled and occasionally cloudy weather is anticipated.
The temperature will be between the lowest temperature of 30.2°F and the highest temperature of 62.6°F. The warmest part of the day will be around 4 pm.
The highest temperature tomorrow will resemble September's average maximum of 68°F more than October's average. The nighttime low tomorrow will be similar to October's typical minimum temperature.
Updated: Oct 18, 2026 @ 05:59:39 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunshine and minimal clouds are in the outlook.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 28.4°F.
The highest temperature will be significantly higher than the average maximum of 50.5°F in October. The lowest temperature will be in line with the average low of 30.4°F.

On Sunday, in Alton, sunrise will be at 7:41 am and sunset at 6:38 pm (MDT).

In Alton, tomorrow, there will be 10h and 57min of daylight.