Ketchum, ID Weather

Blaine County4:25 PM MDT43.68°N, 114.36°WElevation 5,853 ft

Current conditions

Chance Light Rain
49°
Chance Light Rain
Feels like 47°
High 51°·Low 26°
WindNNW 5 mph gusts 10 mph
Humidity70%
Dew point40°
Visibility2.0 mi
Cloud cover81%
UV index1 Low
Sunrise8:02 AM
Sunset6:43 PM

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

Forecast

10-day

  • Friday

    Showers and thunderstorms before 9am, then rain. Cloudy. High near 51, with temperatures falling to around 48 in the afternoon. South southwest wind around 6 mph. Chance of precipitation is 90%.

  • Friday Night

    A slight chance of rain before 7pm. Partly cloudy. Low around 26, with temperatures rising to around 30 overnight. North wind 5 to 8 mph. Chance of precipitation is 20%.

  • Saturday

    Sunny, with a high near 53. West wind 1 to 7 mph.

National Weather Service forecast updated 22 hrs ago.

Hourly

Hourly forecast
  1. Now Chance Light Rain 49°44%
  2. 5 PM Chance Light Rain 48°35%
  3. 6 PM Slight Chance Light Rain 46°16%
  4. 7 PM Cloudy 44°
  5. 8 PM Cloudy 41°
  6. 9 PM Mostly Cloudy 39°
  7. 10 PM Mostly Cloudy 39°
  8. 11 PM Mostly Cloudy 37°
  9. Sat12 AM Mostly Clear 36°
  10. 1 AM Mostly Clear 34°
  11. 2 AM Mostly Clear 32°
  12. 3 AM Mostly Clear 31°
  13. 4 AM Mostly Clear 30°
  14. 5 AM Mostly Clear 30°
  15. 6 AM Sunny 28°
  16. 7 AM Sunny 28°
  17. 8 AM Sunny 26°
  18. 9 AM Sunny 27°
  19. 10 AM Sunny 32°
  20. 11 AM Sunny 39°
  21. 12 PM Sunny 46°
  22. 1 PM Sunny 50°
  23. 2 PM Sunny 52°
  24. 3 PM Sunny 52°

10-day forecast

Details
  1. TonightOct 22 Rain then Showers And Thunderstorms Rain then Showers And Thunderstorms87%36°
  2. TodayOct 23 Showers And Thunderstorms then Rain Showers And Thunderstorms then Rain94%26°51°
  3. SatOct 24 Sunny Sunny25°53°
  4. SunOct 25 Sunny Sunny27°56°
  5. MonOct 26 Mostly Sunny Mostly Sunny31%26°57°
  6. TueOct 27 Mostly Sunny Mostly Sunny14%25°52°
  7. WedOct 28 Mostly Sunny Mostly Sunny27°53°
  8. ThuOct 29 Mostly Sunny Mostly Sunny56°
  9. FriOct 30 Mostly sunny Mostly sunny23°53°
  10. SatOct 31 Cloudy Cloudy0.02 in28°46°

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

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news in Idaho

More weather news

Air quality

1
Good
Fine particles (PM2.5)

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

Forecast

  • FriGood (11)
  • SatGood (17)
  • SunGood

Ketchum, 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 8:02 AM
Sunset 6:43 PM
Daylight 10 h 40 min (−2 min 49 s tomorrow)
Waxing Gibbous · 94% lit
Moonrise 5:14 PM Moonset 5:12 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low53° / 26°
Yesterday66° / 39°
Month to date0.06 in (normal 0.95 in)

Ketchum Ranger Station, records since 1937. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PIH, issued 15 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 Today, where precipitation could trigger debris flows and rapid runoff.

- Widespread showers through most of Today.

- Much colder Today.

- Dry weather returns Saturday.

Discussion

Issued at 114 AM MDT Fri Oct 23 2026

Rain has arrived across central and east Idaho. Low pressure will move through our area today. We should see that circulation in the radar reflectivity fields today. Storm total rainfall amounts remain all over the board. Models just having a tough time figuring out the amount of dry air in the system verses the rain intensity. The NBM 10th percentile ranges from 0.10 to 0.25 inches with slightly higher amounts across the central mountains into the Island Park region. The 50th percentile is roughly around 0.75 to 1.00 inches with higher amounts across the central mountains into Island Park where the wrap around moisture is expected to be more persistent. This is roughly where the official forecast is. The 90th percentile is very high still, well over an inch in most places and closer to 1.50 to 2.00 inches. So what this tells us is there is a lot of uncertainty with this system. Amounts will most likely range from roughly 0.50 to 1.25 inches with the highest amounts over the mountains into Island Park, but it could still end up a lot higher if the models have overdone the amount of dry air or it could end up a lot lower if the models have not accounted for the dry air enough. It will be much colder today, that we know for sure! Most areas will struggle to reach 50 today. Some high level snow remains possible, mainly across the central mountains but it shouldn't create too many impacts to roads, if any at all.

This system should exit the area by Saturday with dry weather settling in for the weekend into Monday. Another low pressure system arrives Tuesday, but qpf amounts look much less, probably less than 0.25 inches for most of us. Temperatures will remain slightly below average for most of the week, we could approach seasonable values on Monday ahead of the next system.

Aviation

Issued at 114 AM MDT Fri Oct 23 2026

Expect worsening conditions today with ceilings falling to MVFR and possibly IFR by afternoon for many locations. Winds will pick up this afternoon with gusts to 30 kts certainly possible at many sites as well.

Fire Weather

Issued at 114 AM MDT Fri Oct 23 2026

Wetting rains are likely across much of the area today. Winds look lighter across the central mountains, but gusts of 30 to 40 mph are likely across much of southern and eastern Idaho today. Drier weather with lighter winds returns for Saturday.

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.