Sun Valley, Idaho Weather Conditions

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Current Conditions

  • 82°
  • Partly Cloudy
  • Wind: WNW 6 mph
  • Humidity: 19%
  • Visibility: N/A
  • Dew Point: 36°
  • Pressure: 29.76 in. +

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Next 12 Hours

6  pm
9  pm
12  am
3  am
6  am
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
84°
76°
67°
60°
57°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Overcast
  • High: 80 °
  • Low: 50 °
  • Overcast
  • Monday
  • Chance of a Thunderstorm
  • High: 78 °
  • Low: 49 °
  • Chance of T-Storms
  • Tuesday
  • Clear
  • High: 80 °
  • Low: 50 °
  • Clear
  • Wednesday
  • Clear
  • High: 79 °
  • Low: 49 °
  • Clear
  • Thursday
  • Chance of a Thunderstorm
  • High: 80 °
  • Low: 49 °
  • Chance of T-Storms

Forecast for Sun Valley, Idaho

Updated: 2:20 PM MDT on July 4, 2015

  • Tonight

    Mostly cloudy. Lows 54 to 64.

  • Sunday

    Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs 77 to 87.

  • Sunday Night

    Mostly cloudy with a slight chance of showers and thunderstorms in the evening...then partly cloudy after midnight. Cooler. Lows 49 to 59.

  • Monday

    Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 78 to 88.

  • Monday Night

    Partly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 48 to 58.

  • Tuesday through Wednesday Night

    Partly cloudy with a slight chance of showers and thunderstorms. Highs 79 to 89. Lows 49 to 59.

  • Thursday and Thursday Night

    Partly cloudy. A chance of rain showers and a slight chance of thunderstorms. Highs 79 to 89. Lows 49 to 59.

  • Friday through Saturday

    Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs 75 to 85. Lows 48 to 58.

Severe Weather Alert Descriptions

 Record Report  Statement as of 5:41 PM MDT on July 04, 2015


... Record high temperature set at Challis ID...

a high temperature of 96 degrees was set at Challis
today and ties the record set in 2008.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Sun Valley Resort, Sun Valley, ID

Updated: 6:09 PM MDT

Temperature: 89.1 °F Dew Point: 44 °F Humidity: 21% Wind: SSW at 8.0 mph Pressure: 28.88 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Sun Valley, Sun Valley, ID

Updated: 6:09 PM MDT

Temperature: 88.9 °F Dew Point: 25 °F Humidity: 10% Wind: WSW at 16.1 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Guan Hu Lu, Ketchum, ID

Updated: 6:06 PM MDT

Temperature: 89.2 °F Dew Point: 50 °F Humidity: 25% Wind: North at - Pressure: 30.08 in Hourly Precipitation: - Heat Index: 86 °F Graphs

Location: Meadowbrook Road, Hailey, ID

Updated: 6:05 PM MDT

Temperature: 103.3 °F Dew Point: 51 °F Humidity: 17% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Heat Index: 100 °F Graphs

Location: MesoWest, Ketchum, ID

Updated: 5:45 PM MDT

Temperature: 75 °F Dew Point: 35 °F Humidity: 24% Wind: WNW at 10 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: MesoWest, Ketchum, ID

Updated: 5:00 PM MDT

Temperature: 74 °F Dew Point: 35 °F Humidity: 24% Wind: West at 10 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Audubon Place, Hailey, ID

Updated: 6:06 PM MDT

Temperature: 94.6 °F Dew Point: 58 °F Humidity: 29% Wind: North at - Pressure: 30.05 in Hourly Precipitation: - Heat Index: 93 °F Graphs

Location: Indian Creek, Hailey, ID

Updated: 6:09 PM MDT

Temperature: 97.5 °F Dew Point: 32 °F Humidity: 10% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: MesoWest, Fairfield, ID

Updated: 5:00 PM MDT

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

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Pocatello Idaho 
152 PM MDT Sat Jul 4 2015 


Discussion...the latest satellite imagery continued to show a high 
pressure ridge positioned over the 4-corners region extending northwest 
into southern Oregon while a low pressure system was positioned off the 
central California coast with sub-tropical moisture advancing north-northwest out 
of Mexico across Nevada and the Sierra mountains around the western periphery 
of the high into Oregon and SW Idaho. Further north...a low pressure 
system was rotating into north-central Canada while an embedded 
disturbance was noted digging rapidly south across British Columbia 
toward northern Idaho. The models remain in lock-step agreement again 
today with regards to the pattern evolution through Tuesday as 
pooling sub-tropical moisture over Nevada and Utah is drawn 
northeastward across southeast Idaho Sunday ahead of the advancing Canadian 
trough axis resulting in cooler temperatures and increasing 
thunderstorm activity Sunday/Sunday night. As the trough shifts east 
Monday and Tuesday...the ridge rebounds ever so slightly across the 
Great Basin with diurnally heating (albeit cooler than recent 
days) driving thunderstorm activity Monday and Tuesday afternoon. 


For Wednesday through Saturday...the models continue to struggle 
with the track and timing of the incoming California low...now 
waiting until Thursday (gfs) or Friday (ecmwf) to lift it NE across 
southern Idaho. Thus have begun to real in the precipitation potential 
for Wednesday and have maintained a chance/slight chance mention of 
precipitation throughout the remainder of the week. Huston 
&& 


Aviation...wind is keeping light with no increase expected until 
early Sunday morning for the three Snake River Plain airdromes. This 
is due to an approaching front that will sweep through southern 
Idaho during the morning and early afternoon. -Shra and afternoon - 
thunderstorms and rain should develop along and in its wake on its southern end...so 
for kida and kpih this will be after the current valid time. Thus 
the only place affected until before 05/18z is kbyi. The high 
moisture so far looks like it will have a tough time making it into 
the ksun area...at least until after 18z. So except for some 
elevated wind during the night hours...little impact to aviation 
interests until after 05/18z. Messick 
&& 


Fire weather...a cold front will be moving through during the 
morning and early afternoon hours on sun. Wind will be light this 
afternoon and early evening...but expect an unusual increase in the 
wind during the overnight hours due to this approaching front. Also 
in an odd Twist...the best moisture will be areas down towards the 
Idaho-Utah border. This is where showers will develop 
first...including the eastern Magic Valley. By noon sun...showers 
and thunderstorms should develop all over the forecast area. The 
cold front will bring temperatures closer to normal for this time of 
year...and that will bring humidity up for at least sun and Monday. 
Afternoon showers and thunderstorms will return for Monday and Tuesday. 
Another cold front is expected Thursday afternoon into Friday night. This 
will increase the wind and bring back the higher threat for showers 
and thunderstorms. Messick 
&& 


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


$$ 



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