Iona, ID Weather

Bonneville County2:53 PM MDT43.53°N, 111.93°WElevation 4,783 ft
Flash Flood Watch from 9:00 PM Thu until 6:00 PM Fri

Current conditions

Partly Sunny
69°
Partly Sunny
Feels like 69°
High 71°·Low 46°
WindS 7 mph gusts 16 mph
Humidity44%
Dew point46°
Visibility10 mi
Cloud cover37%
UV index4 Moderate
Sunrise7:51 AM
Sunset6:35 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • This Afternoon

    Partly sunny. High near 71, with temperatures falling to around 68 in the afternoon. South wind around 8 mph.

  • Tonight

    A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight, then showers and thunderstorms. Mostly cloudy. Low around 46, with temperatures rising to around 50 overnight. South wind 3 to 12 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

  • Friday

    Rain. Cloudy. High near 50, with temperatures falling to around 45 in the afternoon. South southwest wind 14 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.

National Weather Service forecast updated 2 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Sunny 69°
  2. 3 PM Partly Sunny 70°
  3. 4 PM Mostly Sunny 69°
  4. 5 PM Slight Chance Light Rain 68°15%
  5. 6 PM Chance Showers And Thunderstorms 65°33%
  6. 7 PM Chance Showers And Thunderstorms 61°30%
  7. 8 PM Slight Chance Showers And Thunderstorms 58°24%
  8. 9 PM Slight Chance Light Rain 57°23%
  9. 10 PM Chance Light Rain 56°26%
  10. 11 PM Chance Light Rain 55°29%
  11. Fri12 AM Chance Showers And Thunderstorms 54°44%
  12. 1 AM Showers And Thunderstorms Likely 54°71%
  13. 2 AM Showers And Thunderstorms Likely 53°72%
  14. 3 AM Showers And Thunderstorms 52°97%
  15. 4 AM Showers And Thunderstorms 52°92%
  16. 5 AM Showers And Thunderstorms 50°75%
  17. 6 AM Showers And Thunderstorms 49°83%
  18. 7 AM Showers And Thunderstorms Likely 48°63%
  19. 8 AM Showers And Thunderstorms Likely 46°67%
  20. 9 AM Chance Light Rain 48°52%
  21. 10 AM Light Rain Likely 49°55%
  22. 11 AM Light Rain Likely 49°64%
  23. 12 PM Light Rain Likely 50°70%
  24. 1 PM Light Rain Likely 51°69%

10-day forecast

Details
  1. TodayOct 22 Partly Sunny Partly Sunny96%46°71°
  2. FriOct 23 Light Rain Light Rain95%36°50°
  3. SatOct 24 Sunny Sunny33°51°
  4. SunOct 25 Sunny Sunny35°54°
  5. MonOct 26 Sunny Sunny21%36°57°
  6. TueOct 27 Slight Chance Light Rain then Mostly Sunny Slight Chance Light Rain then Mostly Sunny17%34°53°
  7. WedOct 28 Mostly Sunny Mostly Sunny35°52°
  8. ThuOct 29 Sunny Sunny29°51°
  9. FriOct 30 Sunny Sunny31°51°
  10. SatOct 31 Partly cloudy Partly cloudy35°49°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Iona

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Air quality

20
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • ThuGood (24)
  • FriGood (19)
  • SatGood (23)

Idaho Falls, ID reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:51 AM
Sunset 6:35 PM
Daylight 10 h 43 min (−2 min 48 s tomorrow)
Waxing Gibbous · 87% lit
Moonrise 4:45 PM Moonset 3:54 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low56° / 29°
Record high79° (2003)
Record low16° (2020)
Wettest0.62 in (1975)
Yesterday69° / 44°, 0.16 in
Month to date1.46 in (normal 0.64 in)

Idaho Falls Faa Ap, records since 1948. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PIH, issued 58 min ago

Key Messages

- Flash Flood Watch for Local Burn Scars: A Flash Flood Watch is in effect for the Wapiti, Ohio, and Big Rock burn scars from late tonight through Friday, where incoming precipitation could trigger debris flows and rapid runoff.

- Widespread showers and storms this evening through most of the day Friday.

- Much colder Friday. Daytime temperatures will drop by around 20 degrees.

Discussion

Issued at 139 PM MDT Thu Oct 22 2026

The low pressure system over California will continue to move inland and lift northward today, then overhead on Friday before exiting the region on Saturday. Showers and thunderstorms will overspread the CWA late this afternoon and tonight into Friday morning. Precipitation will trend lighter moving into Friday evening and conclude for the entirety of the forecast area by early Saturday morning.

The 48-hour National Blend mean QPF has increased slightly, sitting at roughly an inch across much of the forecast area, with closer to 1.25 to 1.50 inches across the central mountains eastward into the Island Park region. The 10th percentile is around 0.25" to 0.50" for much of eastern Idaho and closer to 0.75" for the central mountains into the Island Park region. The 90th percentile has increased to 1.50 to 2 inches for most of east Idaho, with around 2 inches for the central mountains. The official WPC forecast continues to run on the dry end, still sitting between the 10th and 25th percentile with much of the area forecast to receive less than 0.75" with 1 inch to 1.25 inches across the high elevations of the central mountains and Montana Divide region. Thus, a large spread continues to reflect a broad range of model solutions.

The snowfall forecast remains consistent with most of the snow falling above 7000 feet and mainly across the central mountains. There will be a 20 degree or so drop in temps between Thursday and Friday and temperatures Saturday morning will start off below freezing for many, but precipitation will largely be concluded by that time.

Dry weather is likely over the weekend into early next week. Temperatures will be a touch below average over the weekend and return to seasonable levels for next week.

Aviation

Issued at 1131 AM MDT Thu Oct 22 2026

SHRA/ISOL TSRA chances increase through the afternoon, then East Idaho transitions to more widespread RA/SHRA during the overnight. TSRA will have the potential to produce wind gusts over 20kts this afternoon, otherwise winds remain light. As the precipitation becomes more widespread, expect CIGS to fall from VFR to MVFR with isolated pockets of IFR during the overnight. SHRA continue through the day Friday with cold temps and CIGS remaining MVFR.

Fire Weather

Issued at 102 AM MDT Thu Oct 22 2026

Isolated to scattered thunderstorms are expected today. Some gusts to 35 mph are possible near storms. Otherwise winds should remain light. The wetting rains should arrive tonight and continue into Friday.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.