Weather forecast for 10 daysIona, ID

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 68°F
  • 30°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 211°
  • Humidity: 32%
  • UV index: 3
  • Sunrise: 7:44 am MDT
  • Sunset: 6:41 pm MDT
  • ▼
Today, in Iona, sunny skies and pleasant visibility are expected.
A significant variation in temperature is predicted, ranging from a high of a pleasant 68°F to a low of a freezing 30.2°F.
A forecast high of 68°F brings conditions more familiar to September's average than October's.
Sunrise was at 7:44 am and sunset will be at 6:41 pm; the daylight will last for 10h and 56min.

Sunday Oct 18, 2026

  • 66°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphWSW 255°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:45 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
On Sunday, October 18, sun and clouds will share the sky, creating a partly cloudy day.
Temperatures will see a substantial oscillation, reaching a high of a breezy 66.2°F and dropping to a low of a cold 32°F.
Tomorrow, it will be warmer, and the temperature will align more with September's typical maximum of 73.6°F.
Sunrise will be at 7:45 am and sunset at 6:39 pm; tomorrow's daylight will last for 10h and 54min.

10-day overview

Daily temperatures

Maximum temperature: 68°C.
Coldest period: Friday - Saturday 48°C.

Chance of precipitation

Highest chance: Friday 70%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 68°F
  • 30°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 211°
  • Humidity: 32%
  • UV index: 3
  • Sunrise: 7:44 am MDT
  • Sunset: 6:41 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphWSW 255°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:45 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 199°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:47 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 64°F
  • 41°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphSSE 151°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:48 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 6mphSSE 165°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 64°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.2"
  • Wind: 7mphSSE 162°
  • Humidity: 72%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 48°F
  • 34°F
Rain
Rain
  • Precip. probability: 70%
  • Precipitation: 0.31"
  • Wind: 13mphSW 218°
  • Humidity: 96%
  • UV index: 2
  • Sunrise: 7:52 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 48°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 9mphSSW 212°
  • Humidity: 78%
  • UV index: 3
  • Sunrise: 7:53 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 54°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 7mphS 188°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 7:54 am MDT
  • Sunset: 6:28 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 50°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 7mphSW 233°
  • Humidity: 78%
  • UV index: 3
  • Sunrise: 7:55 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
Looking ahead, conditions suggest a period of cloud-filled, bright and damp weather is forecasted.
Rainfall is anticipated on Thursday and Friday.
Expect a substantial fluctuation in daytime highs across the forecast period. Forecast highs will fluctuate between 48.2°F and 68°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 30.2°F and 42.8°F.
The warmest days will be Saturday and Monday, with a maximum of 68°F; with a maximum temperature of 48.2°F, Friday and next Saturday will be the coldest days.
Updated: Oct 17, 2026 @ 21:05:03 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, clouds will come and go, but expect bright periods in between.

Tomorrow, the highest temperature in Iona, Idaho, will be 66.2°F, while the lowest temperature will be 32°F.
The highest temperature will be uncommonly higher than the average maximum of 55.6°F in October. The lowest temperature tomorrow will be relatively lower than the average low temperature.

On Sunday, in Iona, sunrise will be at 7:45 am and sunset at 6:39 pm (MDT).

Tomorrow, the daylight will last for 10h and 54min.