Sun Valley, Idaho Weather Conditions

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Current Conditions

  • 29°
  • Clear
  • Wind: South 4 mph
  • Humidity: 92%
  • Visibility: N/A
  • Dew Point: 27°
  • Pressure: 29.99 in. +
  • Heat Index: 25

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Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
32°
36°
52°
66°
66°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Clear
  • High: 66 °
  • Low: 32 °
  • Clear
  • Tuesday
  • Clear
  • High: 68 °
  • Low: 34 °
  • Clear
  • Wednesday
  • Partly Cloudy
  • High: 64 °
  • Low: 27 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 64 °
  • Low: 32 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 70 °
  • Low: 32 °
  • Partly Cloudy

Forecast for Sun Valley, Idaho

Updated: 3:00 AM MDT on September 01, 2014

  • Monday

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

  • Monday Night

    Clear. Low of 32F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 68F. Winds from the WSW at 5 to 15 mph.

  • Tuesday Night

    Clear. Low of 34F. Winds from the SSW at 5 to 10 mph.

  • Wednesday

    Clear in the morning, then partly cloudy. High of 64F. Winds from the WSW at 10 to 15 mph.

  • Wednesday Night

    Partly cloudy in the evening, then clear. Low of 27F. Winds less than 5 mph.

  • Thursday

    Clear. High of 64F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 32F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 70F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 32F. Winds from the WNW at 5 to 10 mph shifting to the North after midnight.

  • Saturday

    Clear. High of 70F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 34F. Winds less than 5 mph.

  • Sunday

    Clear. High of 70F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 34F. Winds from the West at 5 to 10 mph.

  • Monday

    Clear. High of 68F. Winds from the WSW at 5 to 15 mph.

  • Monday Night

    Partly cloudy. Low of 37F. Winds from the West at 5 to 15 mph shifting to the North after midnight.

  • Tuesday

    Partly cloudy. High of 66F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 36F. Winds less than 5 mph.

  • Wednesday

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

  • Wednesday Night

    Clear. Low of 37F. Winds less than 5 mph.

  • Thursday

    Clear. High of 63F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 37F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 4:04 AM MDT

Temperature: 45 °F Dew Point: 16 °F Humidity: 31% Wind: West at 4 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: RAWS COPPER BASIN ID US, Mackay, ID

Updated: 3:50 AM MDT

Temperature: 29 °F Dew Point: 24 °F Humidity: 80% Wind: West at 3 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: RAWS NORTH FORK ID US, Ketchum, ID

Updated: 3:39 AM MDT

Temperature: 35 °F Dew Point: 27 °F Humidity: 71% Wind: NNW at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Sun Valley Resort, Sun Valley, ID

Updated: 5:12 AM MDT

Temperature: 37.2 °F Dew Point: 29 °F Humidity: 72% Wind: Calm Pressure: 29.25 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: RAWS OHIO GULCH ID US, Hailey, ID

Updated: 3:44 AM MDT

Temperature: 45 °F Dew Point: 29 °F Humidity: 53% Wind: NNE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

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

Updated: 3:45 AM MDT

Temperature: 40 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

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

Updated: 4:00 AM MDT

Temperature: 40 °F Dew Point: 21 °F Humidity: 45% Wind: NNW at 17 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: East Fork, Hailey, ID

Updated: 5:12 AM MDT

Temperature: 33.6 °F Dew Point: 31 °F Humidity: 91% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: ITD Wood River ID US, Hailey, ID

Updated: 4:15 AM MDT

Temperature: 45 °F Dew Point: 25 °F Humidity: 46% Wind: North at 8 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

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

Updated: 3:45 AM MDT

Temperature: 48 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Pocatello Idaho 
214 am MDT Monday Sep 1 2014 


Short term...Labor Day through Wednesday. The tail end of the 
weekend system continues to clip areas Near Island park this 
morning. As the morning wears on...any clouds and showers will 
quickly exit to the east. We will be left with a cool Labor Day 
with a bit of a breeze this afternoon...although it'll be less 
than the past couple. Dry conditions and light wind will mean a 
cool...and for some quite chilly...Monday night with 30s and 40s 
for most of US. Higher valleys like Stanley and Copper Basin will 
drop to the middle 20s. A quick rebound tomorrow though as highs pop 
back up to typical temperatures of 70s to middle 80s. Another system 
sets up shop across southern Canada and the western states for 
midweek. As the first and main piece of this system swings along 
the border Wednesday...this will push a cold front across eastern 
Idaho. This will be a mostly dry front although a storm or two may 
fire across the central mountains and along the Montana border. Otherwise...we 
will see an increase in clouds and another cool...breezy day on 
Wednesday. We will be borderline for a lake Wind Advisory. Keyes 


Long term...Wednesday night through next Monday. The models are 
struggling a bit and what happens with the lingering trough 
across the west. The GFS is a lot weaker with the next wave to 
swing across the region for Thursday vs the European model (ecmwf). The GFS is also 
already closing off the far western portion of the pattern...and 
already putting Idaho under southerly flow. If you look at both 
models...they are bringing a slight chance of showers/storms to 
eastern locations despite the difference. The forecast will 
reflect this. These differences remain beyond Thursday...with the 
GFS maintaining moisture and the potential for isolated showers 
and storms across the north...while the European model (ecmwf) is mostly dry except 
around Bear Lake. In keeping with the idea of blending the two 
forecasts...we will maintain a slight chance of precipitation 
across the central and eastern mountains through the period. 
Temperatures will remain cooler until the weekend but slowly warm 
after that...similar to what the prior forecast showed. Keyes 


&& 


Aviation...dry northwest flow aloft will keep the area dry and relatively 
clear. VFR through tonight. Hedges 


&& 


Fire weather...dry northwest flow will prevail through Tuesday. 
This will result in no precipitation...along with cool temperatures 
and higher humidity. The pattern changes on Wednesday as a strong 
upper trough moves into the Pacific northwest. A dry cold front is expected to 
pass through Idaho on Wednesday...bringing strong west to southwest 
winds. Hedges 


&& 


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


$$ 














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