Idaho Falls, ID 83406 Weather

Bonneville County9:38 PM MDT43.47°N, 111.97°W
Flash Flood Watch until 6:00 PM Fri

Current conditions

Mostly Cloudy
57°
Mostly Cloudy
Feels like 57°
High 50° Friday·Low 45° tonight
WindSSE 6 mph
Humidity67%
Dew point46°
Pressure29.87 inHg
Visibility10 mi
Cloud cover71%
UV index0 Low
Sunrise7:51 AM
Sunset6:35 PM

Observed at Idaho Falls Regional Airport · 1 hr ago

Forecast

10-day

  • 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 45, with temperatures rising to around 49 overnight. South wind 2 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

  • Friday

    Rain. Cloudy. High near 50, with temperatures falling to around 45 in the afternoon. South southwest wind 13 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

  • Friday Night

    Rain before 1am. Mostly cloudy, with a low around 35. West wind 3 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.

National Weather Service forecast updated 7 hrs ago.

Hourly

Hourly forecast
  1. Now Chance Light Rain 57°31%
  2. 10 PM Chance Light Rain 56°34%
  3. 11 PM Chance Light Rain 54°40%
  4. Fri12 AM Chance Showers And Thunderstorms 54°38%
  5. 1 AM Showers And Thunderstorms Likely 53°66%
  6. 2 AM Showers And Thunderstorms 52°85%
  7. 3 AM Showers And Thunderstorms 52°98%
  8. 4 AM Showers And Thunderstorms 50°91%
  9. 5 AM Showers And Thunderstorms Likely 49°70%
  10. 6 AM Light Rain 47°91%
  11. 7 AM Light Rain 47°88%
  12. 8 AM Light Rain 46°94%
  13. 9 AM Light Rain 45°75%
  14. 10 AM Light Rain 47°75%
  15. 11 AM Light Rain Likely 47°68%
  16. 12 PM Light Rain 48°82%
  17. 1 PM Light Rain 49°80%
  18. 2 PM Light Rain Likely 47°72%
  19. 3 PM Light Rain Likely 47°59%
  20. 4 PM Light Rain Likely 47°60%
  21. 5 PM Light Rain 45°87%
  22. 6 PM Light Rain 44°75%
  23. 7 PM Light Rain Likely 43°69%
  24. 8 PM Light Rain 42°85%

10-day forecast

Details
  1. TodayOct 22 Partly Sunny Partly Sunny98%45°71°
  2. FriOct 23 Light Rain Light Rain94%35°50°
  3. SatOct 24 Sunny Sunny32°51°
  4. SunOct 25 Sunny Sunny34°54°
  5. MonOct 26 Sunny Sunny23%34°57°
  6. TueOct 27 Slight Chance Light Rain then Mostly Sunny Slight Chance Light Rain then Mostly Sunny17%32°53°
  7. WedOct 28 Mostly Sunny Mostly Sunny33°52°
  8. ThuOct 29 Sunny Sunny28°51°
  9. FriOct 30 Sunny Sunny28°51°
  10. SatOct 31 Partly cloudy Partly cloudy33°49°

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

Radar

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Weather news near Idaho Falls

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Air quality

0
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 49 s tomorrow)
Waxing Gibbous · 89% 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 4 hrs 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 533 PM MDT Thu Oct 22 2026

Widespread showers expected to increase through the evening period. A line of thunderstorms moving through the central Idaho mountains will push to the north through 04z. Another line of thunderstorms coming from Nevada and Utah will sweep into KBYI KPIH KIDA through 05Z By the time it reaches KDIJ it should be rain showers. Upper level low will move through the area during the next 24 hours producing widespread MVFR conditions due to ceilings and visibiilty with rain showers. Anticipate some IFR conditions with heavier rain showers. Winds will increase by 18z tomorrow in the Snake River airport sights.

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