Skip to main content
PeakCam

14-day multi-model blend · 9 models

Arapahoe Basin snow forecast

As of the 2026-10-20 runs: 0.2″ in the next 7 days and 0.7″ over 14 at the summit, the biggest day 0.3″, the median of 9 models.

Summit County · Colorado

Summit blend, next 14 days

Summit point at 13,050 ft · issued · 9 models: ECMWF IFS 0.25°, GEM, HRRR, GFS, ICON, JMA, ARPEGE/AROME, NBM (CONUS), UKMO.

Next 48 h
0.1″
Next 7 days
0.2″
Next 14 days
0.7″
Biggest day
0.3″ on Sat, Oct 31
DaySkySnow (median)Low – highHigh / lowPrecipGustModels
✳✳✳0.1″0″ – 0.1″40° / 25°31%17 mph9
––37° / 23°12%19 mph9
––40° / 23°33%22 mph8
––38° / 29°77%26 mph8
✳✳✳0.1″0″ – 0.1″38° / 24°68%35 mph7
✳✳✳–0″ – 0.8″34° / 20°47%25 mph7
✳✳✳–0″ – 0.4″36° / 20°31%17 mph7
–0″ – 0.2″38° / 20°8%12 mph5
✳✳✳––38° / 19°8%21 mph5
✳✳✳–0″ – 0.2″32° / 20°8%22 mph5
–0″ – 0.1″34° / 20°17%23 mph4
––36° / 19°33%19 mph2
✳✳✳0.3″0.2″ – 0.4″36° / 19°37%14 mph2
✳✳✳0.2″0.2″ – 0.3″30° / 17°42%28 mph2
Every model at the summit (9 runs) — snowfall in inches per day
ModelIssuedHorizon10-1910-2010-2110-2210-2310-2410-2510-2610-2710-2810-2910-3010-3111-01
ECMWF IFS 0.25°ECMWF14 d0.80.10.4001.70.7000000.10.1
GEMEnvironment Canada10 d00000.100000––––
HRRRNOAA NCEP2 d0.10––––––––––––
GFSNOAA NCEP14 d0.1000000000000.40.4
ICONDWD7 d0.1000000–––––––
JMAJapan Meteorological Agency11 d00.7000.100.41.100.10–––
ARPEGE/AROMEMétéo-France4 d0000––––––––––
NBM (CONUS)NOAA NCEP11 d0.40.1000.11.70.40.20.20.20.5–––
UKMOUK Met Office7 d000.200.100–––––––

A dash means the model does not reach that day. Runs are the newest per model within 36 hours.

Base blend, next 14 days

Base point at 10,520 ft · issued · 9 models: ECMWF IFS 0.25°, GEM, HRRR, GFS, ICON, JMA, ARPEGE/AROME, NBM (CONUS), UKMO.

Next 48 h
0″
Next 7 days
0″
Next 14 days
0.3″
Biggest day
0.2″ on Sun, Nov 1
DaySkySnow (median)Low – highHigh / lowPrecipGustModels
––49° / 31°30%15 mph9
––46° / 32°12%16 mph9
––50° / 32°34%22 mph8
––47° / 38°77%26 mph8
––47° / 32°68%34 mph7
✳✳✳–0″ – 0.6″43° / 28°47%24 mph7
–0″ – 0.1″45° / 28°31%17 mph7
––47° / 29°8%12 mph5
✳✳✳––47° / 28°8%21 mph5
✳✳✳–0″ – 0.2″41° / 29°8%21 mph5
–0″ – 0.1″43° / 29°17%21 mph4
––45° / 28°33%19 mph2
✳✳✳0.1″0.1″ – 0.1″45° / 28°37%14 mph2
✳✳✳0.2″0.1″ – 0.3″39° / 26°42%28 mph2
Every model at the base (9 runs) — snowfall in inches per day
ModelIssuedHorizon10-1910-2010-2110-2210-2310-2410-2510-2610-2710-2810-2910-3010-3111-01
ECMWF IFS 0.25°ECMWF14 d0.80.10.4001.70.7000000.10.1
GEMEnvironment Canada10 d00000.100000––––
HRRRNOAA NCEP2 d00––––––––––––
GFSNOAA NCEP14 d0000000000000.10.3
ICONDWD7 d0000000–––––––
JMAJapan Meteorological Agency11 d0000000000.10–––
ARPEGE/AROMEMétéo-France4 d0000––––––––––
NBM (CONUS)NOAA NCEP11 d000001.20.30.10.10.10.4–––
UKMOUK Met Office7 d0000000–––––––

A dash means the model does not reach that day. Runs are the newest per model within 36 hours.

How to read this page

Per day, the median snowfall across the models that reach that day (ECMWF IFS, GFS, GEM, ICON, JMA, Météo-France, UKMO, plus NBM and HRRR for US points), fetched every 6 hours from Open-Meteo at the resort's summit and base elevations; the low/high band is the 25th/75th percentile across models, so a wide band means the models disagree.

Verification scores appear once the daily scorer has graded a run against a measured day. How the blend is built and verified.

Weather data by Open-Meteo.com (CC BY 4.0). Updated every 6 hours.