Ketchum, Idaho Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 66°
  • Partly Cloudy
  • Wind: Calm
  • Humidity: 46%
  • Visibility: 10.0 miles
  • Dew Point: 45°
  • Pressure: 30.18 in. 0

Select a Section

Click a section below for more information.

Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Overcast
Overcast
64°
57°
54°
54°
55°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of a Thunderstorm
  • High: 77 °
  • Low: 52 °
  • Chance of a Thunderstorm
  • Monday
  • Chance of a Thunderstorm
  • High: 73 °
  • Low: 52 °
  • Chance of T-Storms
  • Tuesday
  • Partly Cloudy
  • High: 75 °
  • Low: 50 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 81 °
  • Low: 55 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 79 °
  • Low: 54 °
  • Partly Cloudy

Forecast for Ketchum, Idaho

Updated: 3:00 PM MDT on September 20, 2014

  • Saturday

    Clear. High of 77F. Winds from the NW at 5 to 15 mph shifting to the SE in the afternoon.

  • Saturday Night

    Clear. Low of 54F. Winds from the ENE at 5 to 10 mph shifting to the NNW after midnight.

  • Sunday

    Overcast with a chance of a thunderstorm and a chance of rain in the afternoon. High of 77F. Winds from the NW at 5 to 10 mph shifting to the SE in the afternoon. Chance of rain 20%.

  • Sunday Night

    Overcast with a chance of a thunderstorm and a chance of rain. Low of 52F. Winds less than 5 mph. Chance of rain 50%.

  • Monday

    Overcast with a chance of a thunderstorm and a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 73F. Winds less than 5 mph. Chance of rain 50%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the evening, then clear. Low of 52F. Winds less than 5 mph.

  • Tuesday

    Clear in the morning, then partly cloudy. High of 75F. Winds from the SE at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 50F. Winds from the ESE at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 81F. Winds from the ENE at 5 to 10 mph shifting to the SE in the afternoon.

  • Wednesday Night

    Clear. Low of 55F. Winds from the East at 5 to 10 mph.

  • Thursday

    Partly cloudy. High of 79F. Winds from the ENE at 5 to 15 mph shifting to the SSE in the afternoon.

  • Thursday Night

    Partly cloudy with a chance of rain. Low of 54F. Winds from the South at 5 to 15 mph. Chance of rain 20%.

  • Friday

    Partly cloudy. High of 72F. Winds from the WSW at 5 to 15 mph.

  • Friday Night

    Mostly cloudy. Low of 50F. Winds from the West at 5 to 15 mph.

  • Saturday

    Mostly cloudy with a chance of rain. High of 63F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Mostly cloudy. Low of 48F. Winds from the North at 5 to 10 mph.

  • Sunday

    Mostly cloudy with a chance of rain. High of 59F. Winds from the North at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Mostly cloudy. Low of 45F. Winds less than 5 mph.

  • Monday

    Mostly cloudy with a chance of rain. High of 66F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Mostly cloudy with a chance of rain. Low of 43F. Winds less than 5 mph. Chance of rain 30% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 66F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Partly cloudy. Low of 39F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 66F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 39F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: HADS KETCHUM RANGER STATION NEAR KETC ID US USBR, Ketchum, ID

Updated: 6:45 PM MDT

Temperature: 74 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Sun Valley Resort, Sun Valley, ID

Updated: 8:02 PM MDT

Temperature: 67.4 °F Dew Point: 41 °F Humidity: 38% Wind: Calm Pressure: 29.29 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: East Fork, Hailey, ID

Updated: 8:03 PM MDT

Temperature: 57.7 °F Dew Point: 44 °F Humidity: 59% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: ITD Wood River ID US, Hailey, ID

Updated: 6:30 PM MDT

Temperature: 82 °F Dew Point: 36 °F Humidity: 19% Wind: South at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: RAWS OHIO GULCH ID US, Hailey, ID

Updated: 6:44 PM MDT

Temperature: 75 °F Dew Point: 36 °F Humidity: 24% Wind: SSW at 9 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: RAWS NORTH FORK ID US, Ketchum, ID

Updated: 6:39 PM MDT

Temperature: 78 °F Dew Point: 37 °F Humidity: 23% Wind: SSE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: HADS HAILEY RANGER STATION AT HAILEY ID US USBR, Hailey, ID

Updated: 6:45 PM MDT

Temperature: 80 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: MesoWest SUN VALLEY-BALD MTN (1 HOUR) ID US SNOWNET, Ketchum, ID

Updated: 7:00 PM MDT

Temperature: 62 °F Dew Point: 33 °F Humidity: 33% Wind: SSE at 9 mph Pressure: 30.20 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: RAWS SAWTOOTH PORTABLE #2 ID US, Sun Valley, ID

Updated: 7:04 PM MDT

Temperature: 63 °F Dew Point: 35 °F Humidity: 35% Wind: South at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Pocatello Idaho 
157 PM MDT Sat Sep 20 2014 


Short term...tonight through Monday night. Early afternoon 
satellite imagery was showing a low pressure system spinning over 
the Southern California coast this morning as an amplified upstream 
trough advanced through the eastern Pacific toward the northwest coast. The 
models are in full agreement that the upstream trough will drive the 
cut-off low positioned over Southern California NE through the Great 
Basin Sunday and across The Divide into NE Wyoming late Monday. The 
attending precipitation shield is expected to spread across the southern 
Idaho border Sunday morning and the remainder of southeast Idaho Sunday 
afternoon/evening. Deep layer moisture will accompany the low into 
the region Sunday/Sunday night supporting moderate to heavy showers 
at times. In fact...the 12z NAM was showing a concentrated band of 
showers advancing north along the Wyoming border Sunday night with 
0.75 inches of liquid production in several of the 3-hrly time steps 
whereas the GFS was further south and east with lighter amounts of 
0.30 inches over a 6-hour period. Not too excited at this point given 
all the run to run differences in details but will add a mention of 
heavy rainfall to forecast for that time frame. Drier conditions 
follow Monday night as the low ejects east through Wyoming and a 
drier SW flow sets up across the region. Huston 


Long term...Tuesday through next Saturday. The amplified upstream 
trough advances into the coastal waters Tuesday/Wednesday as the 
downstream ridge expands across the Great Basin Tuesday through 
Wednesday bringing warmer conditions to the area. Beyond Thursday 
afternoon...the GFS and European model (ecmwf) continue to show differences in the 
timing...track and evolution of the incoming trough. The 12z GFS was 
running about 12hrs faster in driving the negatively tilted trough 
inland Thursday night and then spinning up a closed low circulation 
over the northern Great Basin Friday/Friday night which then progresses 
slowly east along the southern Idaho border Saturday placing southeast Idaho in 
a prime position for precipitation. The 00z European model (ecmwf) is currently 
favoring a slower progression which holds the main precipitation 
band over Oregon through Friday followed by the closed low 
circulation developing over northern California Friday night which slowly 
ejects NE through Oregon/western Idaho Saturday/Sunday while producing 
copious amounts of rainfall over southeast Idaho throughout the weekend. 
Huston 
&& 


Aviation...VFR conditions with light winds expected through the 
period. Ep 
&& 


Fire weather...dry conditions are expected today...before another 
low pressure system will move into the area tomorrow. Showers and 
thunderstorms are anticipated Sunday and Monday...which will keep 
Haines index values below 4. High pressure will build in Tuesday and 
Wednesday and bring drier conditions once again. Ep 
&& 


Pih watches/warnings/advisories...none. 
&& 


$$ 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.