Iona, ID 83427 Weather

Bonneville County9:14 AM MDT43.53°N, 111.93°W

Current conditions

Clear
39°
Clear
Feels like 35°
High 66°·Low 44°
WindN 6 mph
Humidity93%
Dew point37°
Pressure30.16 inHg
Visibility10 mi
Cloud cover46%
UV index0 Low
Sunrise7:49 AM
Sunset6:38 PM

Observed at Idaho Falls Regional Airport · 49 min ago

Forecast

10-day

  • Today

    A slight chance of rain. Mostly sunny. High near 66, with temperatures falling to around 64 in the afternoon. South southwest wind 2 to 7 mph. Chance of precipitation is 20%.

  • Tonight

    Mostly clear. Low around 44, with temperatures rising to around 46 overnight. East southeast wind 2 to 6 mph.

  • Wednesday

    A slight chance of rain before 7am. Mostly sunny. High near 67, with temperatures falling to around 65 in the afternoon. South wind around 6 mph. Chance of precipitation is 20%.

National Weather Service forecast updated 3 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Sunny 47°10%
  2. 10 AM Mostly Sunny 52°10%
  3. 11 AM Mostly Sunny 56°
  4. 12 PM Slight Chance Light Rain 59°18%
  5. 1 PM Slight Chance Light Rain 63°17%
  6. 2 PM Slight Chance Light Rain 64°17%
  7. 3 PM Slight Chance Light Rain 64°21%
  8. 4 PM Slight Chance Light Rain 66°23%
  9. 5 PM Slight Chance Light Rain 64°21%
  10. 6 PM Partly Cloudy 62°
  11. 7 PM Partly Cloudy 60°
  12. 8 PM Mostly Clear 55°
  13. 9 PM Mostly Clear 53°
  14. 10 PM Mostly Clear 52°
  15. 11 PM Mostly Clear 50°
  16. Wed12 AM Mostly Clear 49°
  17. 1 AM Mostly Clear 49°
  18. 2 AM Mostly Clear 48°
  19. 3 AM Mostly Clear 48°
  20. 4 AM Partly Cloudy 47°
  21. 5 AM Partly Cloudy 46°
  22. 6 AM Slight Chance Light Rain 46°19%
  23. 7 AM Mostly Cloudy 45°10%
  24. 8 AM Mostly Cloudy 44°

10-day forecast

Details
  1. TodayOct 20 Slight Chance Light Rain Slight Chance Light Rain23%44°66°
  2. WedOct 21 Slight Chance Light Rain then Mostly Sunny Slight Chance Light Rain then Mostly Sunny19%46°67°
  3. ThuOct 22 Mostly Sunny then Slight Chance Showers And Thunderstorms Mostly Sunny then Slight Chance Showers And Thunderstorms98%43°68°
  4. FriOct 23 Rain Rain99%34°48°
  5. SatOct 24 Mostly Sunny Mostly Sunny32°47°
  6. SunOct 25 Sunny Sunny35°54°
  7. MonOct 26 Mostly Sunny Mostly Sunny14%38°57°
  8. TueOct 27 Sunny Sunny35°55°
  9. WedOct 28 Partly cloudy Partly cloudy33°57°
  10. ThuOct 29 Cloudy Cloudy36°58°

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

More weather news

Air quality

14
Good
Fine particles (PM2.5)

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

Forecast

  • TueGood (23)
  • WedGood (22)
  • ThuGood (24)

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 7:49 AM
Sunset 6:38 PM
Daylight 10 h 49 min (−2 min 50 s tomorrow)
Waxing Gibbous · 69% lit
Moonrise 4:04 PM Moonset 1:40 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low57° / 29°
Record high78° (2003)
Record low15° (1982)
Wettest0.45 in (1972)
Yesterday69° / 31°, <0.01 in
Month to date1.30 in (normal 0.59 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 7 hrs ago

Key Messages

- Very warm through Thursday with isolated showers and thunderstorms Today and Wednesday.

- Wet conditions Thursday and Friday and turning much colder Friday.

- Drying this weekend.

Discussion

Issued at 129 AM MDT Tue Oct 20 2026

Forecast hasn't changed significantly with regards to the next system. The low pressure system will stall off the coast of central California today and stay there into Wednesday. The low will begin to move inland on Thursday and then weaken and pass over eastern Idaho Friday. The low will depart the region by Saturday. Expect isolated showers and storms Today through Wednesday with very little rainfall expected. Rain chances increase on Thursday with rain likely overspreading the region Thursday night into Friday. The rain should come to an end by Saturday morning. Rainfall amounts are still quite uncertain and dependent upon rain intensity and the exact track of the low through the region. The mean qpf from the NBM continues to show 1.00 to 1.50 inches across East Idaho with 0.50 to 1.00 over the Magic Valley into the central mountains. The 10th percentile still supports 0.50 to 1.00 inches for East Idaho with 0.10 to 0.50 inches for the Magic Valley and central mountains. However the 90th percentile paints 1.50 to 2.00 inches across the entire region. The forecast qpf from WPC favors the 25th percentile. Snow with this event will probably not be terribly impactful. Snow levels may fall to pass level as the precipitation is about to exit the region. Temperatures will continue to run above normal into Thursday. Looks like a 20 to 25 degree drop in temperatures between Thursday and Friday for highs.

Aviation

Issued at 129 AM MDT Tue Oct 20 2026

A few virga showers may encroach upon TAF sites today. However not expecting significant impacts. Winds should remain relatively light today.

Fire Weather

Issued at 129 AM MDT Tue Oct 20 2026

Isolated showers and thunderstorms are expected today and Wednesday. Rainfall amounts should be very light. Widespread wetting rains will arrive Thursday afternoon and Thursday night.

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 4Search index and reflects what the press published. Terms of use.