Sun Valley
October 30 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 Oct 30
Next 24 hours forecast
Forecast
0.0″
best available forecast · as of Oct 30 16:56
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 Oct 30 14:00
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
Today
Rain before 2pm, then rain and areas of fog. Cloudy. High near 48, with temperatures falling to around 46 in the afternoon. Southeast wind around 6 mph. Chance of precipitation is 100%.
This Afternoon
Rain before 2pm, then rain and areas of fog. Cloudy. High near 49, with temperatures falling to around 47 in the afternoon. Southeast wind around 6 mph. Chance of precipitation is 90%.
Tonight
Rain likely and areas of fog before 7pm, then areas of fog and a chance of rain. Mostly cloudy. Low around 32, with temperatures rising to around 34 overnight. Northeast wind around 3 mph. Chance of precipitation is 60%.
Saturday
Areas of fog and a chance of rain before noon, then rain likely and patchy fog. Mostly cloudy. High near 48, with temperatures falling to around 46 in the afternoon. West southwest wind around 5 mph. Chance of precipitation is 70%.
Saturday Night
Rain between 7pm and 10pm, then rain and patchy fog between 10pm and midnight, then patchy fog and rain and snow. Cloudy, with a low around 33. East southeast wind around 5 mph. Chance of precipitation is 100%.
Sunday
Rain and areas of fog before 5pm, then areas of fog and a slight chance of rain. Cloudy, with a high near 44. East wind around 5 mph. Chance of precipitation is 100%.
Regional forecast discussion NWS PIH · Oct 30 11:36
Written by the National Weather Service's PIH office for its whole forecast area, not for Sun Valley alone.
- Light to moderate rain with very high elevation snow today and tonight. - A slight tapering off Saturday, then moderate to heavy rain and light snow in the mountains Saturday afternoon through Sunday night/Monday morning.
Read the full discussion
000 FXUS65 KPIH 301736 AFDPIH Area Forecast Discussion National Weather Service Pocatello ID 1136 AM MDT Fri Oct 30 2026 .KEY MESSAGES... - Light to moderate rain with very high elevation snow today and tonight. - A slight tapering off Saturday, then moderate to heavy rain and light snow in the mountains Saturday afternoon through Sunday night/Monday morning. && .DISCUSSION... Issued at 216 AM MDT Fri Oct 30 2026 Low pressure along the OR-WA coast will bring a deep south southwesterly flow that will dredge up some subtropical moisture and bring it far enough northward to bring showers to the western parts of the forecast area, spreading eastward during the afternoon and through the overnight. The low itself splits with part of it moving inlands into central OR by Sun morning. On Sat night moderate to heavy precipitation develops over the southern portions of the Gem State, including high elevation snow in the central Idaho mountains. Very little snow develops outside of the central Idaho mountains, so the snow level will lower to around 7000ft elevation. Rain and snow continues at lower rates for Sun night. The southerly airflow does bring in mild air and overcomes the cloud cover to produce a solid warm up into the lower 60s for the heavily populated Snake River corridor. However, the continued thick cloud cover for Sun means much cooler temperatures for the afternoon, about as cold as the previous Thu. As the cold air moves in behind the low on Sun the temperatures cool more, barely reaching the 50 degree mark in lower elevations even along the southern border. Not too much wind to speak of with this low, but some breezy to windy conditions possible in south central Idaho on Sun/Sun night. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1136 AM MDT Fri Oct 30 2026 VFR conditions persist into the evening across all East Idaho terminals, but SHRA producing a roughly 30% chance of lowering CIGS or VIS to MVFR at times. SHRA becomes more widespread through the afternoon into the evening, lowering CIGS and VIS to persistent MVFR around/after 06Z for all sites. Winds remain under 10kts sustained, but SHRA could locally induce a brief gust to 10-15kts. && .FIRE WEATHER... Issued at 216 AM MDT Fri Oct 30 2026 Rain and high elevation snow can be expected starting today and continuing, off and on, through Sun night/Mon morning. Very high humidity with only occasionally breezy to windy conditions expected as the low crosses through the western states during this period, tracking south of Idaho for its center. Temperatures peak today, with some low elevations reaching to around 60 degrees, but cooling for Sat and even more cooling Sun. Some snow is possible at elevations down to around 7000ft or so. && .PIH WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Messick AVIATION...DMH FIRE WEATHER...Messick
Sources & last updated
- Data from MET Norway — CC BY 4.0, adapted by SnowAlert fetched Oct 30 17:26
- National Weather Service fetched Oct 30 16:56
- Weather data by Open-Meteo.com, from the ECMWF and NOAA models — CC BY 4.0, adapted by SnowAlert fetched Oct 30 16:01
- USDA NRCS SNOTEL fetched Oct 30 15:35