Sun Valley
September 15 in the books — no snow ever recorded on this date (23 years in the books). All-time single day: 14.0″ on Jan 27, 2008.
Stoke today Sep 15
Next 24 hours forecast
Forecast
0.0″
best available forecast · as of Sep 15 13:55
NWS 0.0″ · Open-Meteo 0.0″
Last 24 hours measured
Station
0.0″
Chocolate Gulch SNOTEL · 11.6 km · depth 0.0″ · rolling 24 h, observed Sep 15 11:00
Resort
—
resort isn’t reporting yet
Next 48 hours
10-day outlook
Forecast data: National Weather Service; Weather data by Open-Meteo.com (CC BY 4.0); Data from MET Norway (CC BY 4.0) — adapted by SnowAlert.
In the forecaster’s words
Overnight
Clear. Low around 32, with temperatures rising to around 34 overnight. East southeast wind around 3 mph.
Today
Sunny, with a high near 70. South southeast wind 5 to 8 mph.
This Afternoon
Sunny. High near 70, with temperatures falling to around 68 in the afternoon. South southeast wind 5 to 8 mph.
Tonight
Mostly clear. Low around 38, with temperatures rising to around 41 overnight. East wind 2 to 8 mph.
Wednesday
Sunny. High near 78, with temperatures falling to around 76 in the afternoon. East northeast wind 5 to 9 mph.
Wednesday Night
A chance of rain between 8pm and 9pm, then showers and thunderstorms likely between 9pm and 3am, then rain. Mostly cloudy, with a low around 45. Northeast wind around 8 mph. Chance of precipitation is 80%.
Forecast discussion PIH · Sep 15 11:50
- Frost possible across portions of Snake Plain this morning, mainly outside the interstate corridor. - Next chance of rain late week.
Read the full discussion
000 FXUS65 KPIH 151750 AFDPIH Area Forecast Discussion National Weather Service Pocatello ID 1150 AM MDT Tue Sep 15 2026 .KEY MESSAGES... - Frost possible across portions of Snake Plain this morning, mainly outside the interstate corridor. - Next chance of rain late week. && .DISCUSSION... Issued at 103 AM MDT Tue Sep 15 2026 Chilly start to the morning with many areas falling into the 30s. The frost advisory remains in effect until 9am. Temps should quickly rebound with most locations seeing highs in the 70s today. Overnight lows look like they'll stay warm enough in most locations for Wednesday morning. Although there could be a few spots across the upper Snake Plain that could see some patchy frost. Temps rise to near 80 in across most of the Snake Plain and eastern Magic Valley on Wednesday. Meanwhile, a low pressure system will work into the Pacific Northwest. This system will lift monsoonal moisture into our region for Wednesday through Friday resulting in showers and storms. The low will pass through over the weekend and potentially we could see another round of frost advisories for Saturday and Sunday mornings. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1144 AM MDT Tue Sep 15 2026 VFR conditions through the period with light winds and only some occasional mid/high level clouds. && .FIRE WEATHER... Issued at 103 AM MDT Tue Sep 15 2026 Dry weather is likely today with humidities falling into the teens this afternoon. However, winds should be much lighter today and Wednesday. Monsoon moisture will return for Wednesday through Friday resulting in showers and storms across the region. && .PIH WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...13 AVIATION...McKaughan FIRE WEATHER...13
Sources & last updated
- Data from MET Norway — CC BY 4.0, adapted by SnowAlert fetched Sep 15 11:23
- National Weather Service fetched Sep 15 13:55
- Weather data by Open-Meteo.com, from the ECMWF and NOAA models — CC BY 4.0, adapted by SnowAlert fetched Sep 15 12:57
- USDA NRCS SNOTEL fetched Sep 15 12:35