Ketchum, Idaho Weather Conditions

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Current Conditions

  • 19°
  • Scattered Clouds
  • Wind: NW 9 mph
  • Humidity: 80%
  • Visibility: 10.0 miles
  • Dew Point: 14°
  • Pressure: 30.44 in. -
  • Heat Index: 9

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Mostly Cloudy
  • High: 34 °
  • Low: 10 °
  • Mostly Cloudy
  • Sunday
  • Mostly Cloudy
  • High: 31 °
  • Low: 15 °
  • Mostly Cloudy
  • Monday
  • Partly Cloudy
  • High: 37 °
  • Low: 15 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 41 °
  • Low: 18 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 42 °
  • Low: 24 °
  • Partly Cloudy

Forecast for Ketchum, Idaho

Updated: 2:01 PM MST on February 5, 2016

  • Tonight

    Mostly cloudy. A slight chance of snow after midnight. Lows 12 to 19.

  • Saturday

    Partly sunny with a slight chance of snow. Highs 29 to 36.

  • Saturday Night

    Partly cloudy. Lows 9 to 16.

  • Sunday

    Sunny. Highs 29 to 37.

  • Sunday Night

    Mostly clear. Lows 14 to 21.

  • Monday through Wednesday

    Mostly clear. Highs 36 to 46. Lows 15 to 25.

  • Wednesday Night and Thursday

    Partly cloudy. Lows 15 to 23. Highs 36 to 46.

  • Thursday Night

    Mostly cloudy. Lows 16 to 26.

  • Friday

    Partly sunny with a slight chance of snow. Highs 36 to 44.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Sun Valley, Sun Valley, ID

Updated: 1:52 AM MST

Temperature: 15.8 °F Dew Point: 5 °F Humidity: 63% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Timber Lane, Hailey, ID

Updated: 1:51 AM MST

Temperature: 51.1 °F Dew Point: 41 °F Humidity: 67% Wind: North at - Pressure: 30.52 in Hourly Precipitation: - Windchill: - Graphs

Location: Audubon Place, Hailey, ID

Updated: 1:51 AM MST

Temperature: 18.9 °F Dew Point: 14 °F Humidity: 82% Wind: North at - Pressure: 30.56 in Hourly Precipitation: - Windchill: 19 °F Graphs

Location: Indian Creek, Hailey, ID

Updated: 1:52 AM MST

Temperature: 15.3 °F Dew Point: 4 °F Humidity: 61% Wind: NNE at 1.3 mph Pressure: 26.00 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: MesoWest, Ketchum, ID

Updated: 1:15 AM MST

Temperature: 23 °F Dew Point: 14 °F Humidity: 67% Wind: WNW at 10 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 13 °F Graphs

Location: MesoWest, Ketchum, ID

Updated: 1:00 AM MST

Temperature: 20 °F Dew Point: 16 °F Humidity: 84% Wind: West at 9 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 10 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion 
National Weather Service Pocatello Idaho 
200 PM MST Friday Feb 5 2016 

Short term...tonight through Monday. Early afternoon satellite 
imagery was showing a low pressure trough advancing into the northwest 
coastal waters. Models drive this wave east along the Canadian 
border late tonight/Saturday with light snowfall impacting mainly 
the northern half of the forecast area (much less area and lighter 
amounts than previous days trending further north 
with the impacts). An associated cold front will sweep through the 
Snake River Plain late Saturday morning with increasing west-southwest winds 
expected across the region Saturday afternoon and continuing into 
the early evening hours before decoupling from the flow aloft along 
with an easing surface pressure gradient. Winds look to remain below 
advisory levels at this time. An amplified ridge then builds over 
the coastal states Sunday and Monday providing dry conditions across 
the region while promoting valley inversions and deteriorating air 
quality. The mountains look to warm nicely extending into the 40s at 
places like Stanley and Island Park by Monday. Huston 

Long term...Tuesday night through next Friday. The early part of 
next week will be dominated by a strong ridge. Some indications are 
that this type of ridge is very rare for this time of year. We are 
fairly confident with strong inversions and low clouds...fog and/or 
haze through the period. Where we can get gap winds we should be 
able to push into the 40s...but what is likely to happen is that 
most valleys stay in the 20-35 degree range. If you want a break 
from the cold...head up into the mountains. Above the inversion...we 
are expecting 40s and 50s for highs with very mild overnight 
temperatures. While that may seem nice for some...this means there 
are increasing concerns for melting snow and even some minor 
flooding or runoff. There would also be some concern for increasing 
slide/avalanche danger. The end of the week does show the ridge 
flattening a bit. We will see temperatures moderating a 
bit...cooling the mountains and actual warming in the valleys as the 
inversions weaken. The models and ensembles are having a very hard 
time on the degree of weakening as shown in the large variability in 
the ensemble data. Despite does look like by Friday there 
will be some amount of increase for rain and snow across eastern 
Idaho. Keyes 

Aviation...low clouds and fog have been slow to clear but not 
expected in eastern Idaho. Everything suggests that by sometime this 
evening or overnight...we should see MVFR and even VFR weather for 
all taf sites. We've already seen that at kbyi. Ksun will be on the 
fence again as the low clouds are not too far south of the Airport 
and could easily push back into The Wood River Valley as the winds 
weaken and turn southerly. That would go away though late this 
evening as the winds do their usual switch to the northwest. It will 
probably take the next storm dropping toward the state to finally 
clear out kpih and kida. Winds will increase tonight and Saturday as 
15-25kt winds develop over most areas with higher gusts. Right now 
rain or snow chances are too low to mention vcsh at ksun or kida. 
Kpih and kbyi could see a shower or two...but the chance is even 
lower at those airports. Keyes 

Pih watches/warnings/advisories...none. 


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