Ketchum, Idaho Weather Conditions

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Current Conditions

  • 27°
  • Clear
  • Wind: West 10 mph
  • Humidity: 40%
  • Visibility: 10.0 miles
  • Dew Point: 5°
  • Pressure: 30.09 in. -
  • Heat Index: 17

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Next 12 Hours

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

5 Day Forecast

  • Saturday
  • Clear
  • High: 27 °
  • Low: 3 °
  • Clear
  • Sunday
  • Clear
  • High: 28 °
  • Low: 5 °
  • Clear
  • Monday
  • Clear
  • High: 28 °
  • Low: 4 °
  • Clear
  • Tuesday
  • Clear
  • High: 31 °
  • Low: 9 °
  • Clear
  • Wednesday
  • Partly Cloudy
  • High: 34 °
  • Low: 19 °
  • Partly Cloudy

Forecast for Ketchum, Idaho

Updated: 8:49 am MST on November 28, 2015

  • Today

    Sunny. Highs 21 to 31.

  • Tonight

    Partly cloudy. Lows 1 below to 9 above zero.

  • Sunday

    Mostly sunny. Highs 21 to 30.

  • Sunday Night

    Partly cloudy. Lows 1 to 10.

  • Monday

    Mostly sunny. Highs 22 to 29.

  • Monday Night

    Partly cloudy. Lows 1 to 11.

  • Tuesday and Tuesday Night

    Mostly clear. Highs 25 to 34. Lows 4 to 14.

  • Wednesday

    Mostly sunny. Highs around 33.

  • Wednesday Night and Thursday

    Mostly cloudy. Lows 14 to 24. Highs 33 to 42.

  • Thursday Night

    Mostly cloudy with a slight chance of snow. Lows 20 to 28.

  • Friday

    Partly sunny with a chance of snow showers. Highs 31 to 38.

Severe Weather Alert Descriptions

 Record Report  Statement as of 12:31 am MST on November 28, 2015

... Record low temperature set at Idaho Falls ID...

a record low temperature of -8 degrees was set at Idaho Falls ID yesterday.
This ties the old record of -8 set in 1993.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Downtown Ketchum, Ketchum, ID

Updated: 11:16 AM MST

Temperature: 26.2 °F Dew Point: 2 °F Humidity: 34% Wind: ESE at 5.3 mph Pressure: 29.76 in Hourly Precipitation: - Windchill: 20 °F Graphs

Location: Sun Valley Resort, Sun Valley, ID

Updated: 11:22 AM MST

Temperature: 26.7 °F Dew Point: 6 °F Humidity: 40% Wind: Calm Pressure: 29.59 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Sun Valley, Sun Valley, ID

Updated: 11:22 AM MST

Temperature: 27.1 °F Dew Point: 0 °F Humidity: 31% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Timber Lane, Hailey, ID

Updated: 11:21 AM MST

Temperature: 49.8 °F Dew Point: 34 °F Humidity: 53% Wind: North at - Pressure: 30.15 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: Audubon Place, Hailey, ID

Updated: 11:21 AM MST

Temperature: 21.4 °F Dew Point: 13 °F Humidity: 69% Wind: North at - Pressure: 30.21 in Hourly Precipitation: - Windchill: 21 °F Graphs

Location: Indian Creek, Hailey, ID

Updated: 11:21 AM MST

Temperature: 25.3 °F Dew Point: -4 °F Humidity: 27% Wind: NE at 4.2 mph Pressure: 25.70 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: MesoWest, Ketchum, ID

Updated: 10:45 AM MST

Temperature: 16 °F Dew Point: -13 °F Humidity: 25% Wind: North at 13 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 2 °F Graphs

Location: MesoWest, Ketchum, ID

Updated: 10:00 AM MST

Temperature: 15 °F Dew Point: -12 °F Humidity: 28% Wind: North at 14 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Windchill: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion 
National Weather Service Pocatello Idaho 
848 am MST Sat Nov 28 2015 

Update...Sat imagery this morning showing moisture wrapping 
around upper low centered over SW Wyoming. Radar and area web cams 
indicate snow falling over southeast corner of the state. Weak area of 
returns stretching north and pushing west toward the Snake River 
Plain but no evidence of snow associated with it on web cams so 
believe this to be middle level cloud. Have nudged probability of precipitation up in the 
southeast corner and pushed quantitative precipitation forecast/snow amounts up slightly. Highest amounts 
should remain over the Idaho Wasatch. Removed mention of patchy 
fog through the snake plain and decreased cloud cover through the 
day as well. Remainder of forecast in good shape so no further updates 
anticipated. Dmh 


Previous discussion... /issued 327 am MST Sat Nov 28 2015/ 

Short through Monday night. Looking at the current 
water vapor imagery there is a cut off high pressure system 
centered over southwest British Columbia and an upper level low 
pressure system over the southern Great Basin. The high pressure system 
is bringing very cold air in northeast flow down from Canada. Look 
for temperatures to remain well below normal through the period 
only slightly increasing Sunday and Monday with increased cloud 
cover. Patchy fog is possible this morning mainly for the eastern 
Magic Valley. Models continue to show the low pressure system to 
move northeast bringing light snow across the southeast Highlands 
today through late Sunday. Expect very light snow amounts from a 
trace to 2 inches. The Wasatch mountains may see slightly higher 
amounts. Expect overall dry conditions on Monday as the upper 
level low moves eastward. Wyatt 

Long term...Tuesday through next Saturday. The GFS and European model (ecmwf) were 
in very good agreement this morning that a transient upper ridge 
would remain over the region Tuesday and Wednesday supporting dry 
conditions and reinforced valley inversions. Both models showed a 
Pacific disturbance reaching the coast Thursday afternoon and moving 
onshore Thursday night with a fairly well defined split in the flow 
developing as it shifted east into the Great Basin Friday. Split 
flow is typically not very productive for precipitation but it 
should help to provide some mixing and moderation of the valley 
inversions. A dry transient ridge follows Saturday and Sunday. 

Aviation...a modest low pressure system was positioned over the southern 
Great Basin this morning and the models were suggesting that it 
would begin to eject NE today and tonight resulting in an influx of 
moisture across the southeast Highlands possibly impacting kpih and to a 
lesser extent kida and kbyi with lower VFR ceilings and vcty snow 
showers late this afternoon and tonight. Low IFR stratus was 
observed in the Boise area this morning and extended east of kmuo. 
The NAM suggests that it may shift further east impacting kbyi 
this morning. Huston 


Pih watches/warnings/advisories... 


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