Weather forecast for tomorrowIrwin, ID

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 66°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphS 176°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:43 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
Tomorrow, on Sunday, the sky will feature a blend of clouds and sunshine.
Temperature readings will span from a daytime high of a breezy 66.2°F to a night low of a wintry 32°F.
Tomorrow, the anticipated high will be higher and much closer to September's average high of 66.6°F than October's 48.9°F.
Sunrise will be at 7:43 am and sunset at 6:37 pm; tomorrow's daylight will last for 10h and 54min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 34°C.

Chance of precipitation

Highest chance: 1%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 130°
  • Humidity: 61%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 37°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 125°
  • Humidity: 68%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 36°F
  • Feels like:
    32°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSE 143°
  • Humidity: 67%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 34°F
  • Feels like:
    30°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSE 125°
  • Humidity: 70%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:43 am
  • 8 am
  • 34°F
  • Feels like:
    28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSE 128°
  • Humidity: 69%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 45°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSE 135°
  • Humidity: 54%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphS 170°
  • Humidity: 36%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 168°
  • Humidity: 29%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphWSW 251°
  • Humidity: 29%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphW 267°
  • Humidity: 38%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:37 pm
  • 8 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 124°
  • Humidity: 55%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSE 132°
  • Humidity: 64%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of cloudy and mostly clear weather is predicted.
The temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, the expected high matches September's average of 66.6°F more than October's. Tomorrow, the temperature will drop to a level in line with October's average minimum of 29.1°F.
Updated: Oct 17, 2026 @ 21:18:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Irwin, occasional clouds will pass by, but expect bright spells.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 32°F.
The highest temperature will be uncommonly higher than the average maximum of 48.9°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Irwin, sunrise will be at 7:43 am and sunset at 6:37 pm (MDT).

In Irwin, Idaho, tomorrow, there will be 10h and 54min of daylight.