Summit blend, next 14 days

Summit point at 8,570 ft · issued 9:00 a.m. MT Oct 20 · 7 models: ECMWF IFS 0.25°, GEM, GFS, ICON, JMA, ARPEGE/AROME, UKMO.

Next 48 h: 0″
Next 7 days: 3.3″
Next 14 days: 3.5″
Biggest day: 1.9″ on Fri, Oct 23

Day	Snow (median)	Low – high	High / low	Precip	Gust	Models
Today	–	–	34° / 17°	0%	14 mph	7
Wed, Oct 21	–	–	39° / 19°	0%	19 mph	7
Thu, Oct 22	1.3″	0.1″ – 1.7″	35° / 19°	78%	19 mph	7
Fri, Oct 23	1.9″	1.5″ – 2.7″	22° / 13°	92%	16 mph	7
Sat, Oct 24	0.1″	0″ – 0.2″	17° / 8°	39%	14 mph	6
Sun, Oct 25	–	–	17° / 2°	33%	14 mph	6
Mon, Oct 26	–	–	23° / 0°	8%	9 mph	5
Tue, Oct 27	–	–	26° / 8°	19%	8 mph	4
Wed, Oct 28	–	0″ – 0.6″	24° / 4°	27%	11 mph	4
Thu, Oct 29	–	0″ – 0.1″	35° / 1°	21%	11 mph	3
Fri, Oct 30	–	–	34° / 13°	15%	11 mph	2
Sat, Oct 31	–	–	33° / 13°	15%	12 mph	2
Sun, Nov 1	–	–	30° / 17°	11%	16 mph	2
Mon, Nov 2	0.1″	0″ – 0.1″	28° / 21°	18%	24 mph	2

Every model at the summit (7 runs) — snowfall in inches per day

Model	Issued	Horizon	10-22	10-23	10-24	10-25	10-26	10-27	10-28	10-29	10-30	10-31	11-01	11-02
ECMWF IFS 0.25°ECMWF	9:00 a.m. MT Oct 20	14 d	1.6	0.9	0.2	0.1	0	0	0	0	0	0	0	0.2
GEMEnvironment Canada	9:00 a.m. MT Oct 20	9 d	1.8	3	0.7	0.3	0	0	0.1	–	–	–	–	–
GFSNOAA NCEP	9:00 a.m. MT Oct 20	14 d	0.1	3.7	0	0	0	0	0	0	0	0	0	0
ICONDWD	9:00 a.m. MT Oct 20	7 d	0.1	2.3	0.2	0	0	–	–	–	–	–	–	–
JMAJapan Meteorological Agency	9:00 a.m. MT Oct 20	10 d	1.9	1.9	0	0	0	0	1.9	0.1	–	–	–	–
ARPEGE/AROMEMétéo-France	9:00 a.m. MT Oct 20	4 d	1.4	1.2	–	–	–	–	–	–	–	–	–	–
UKMOUK Met Office	9:00 a.m. MT Oct 20	6 d	0.1	1.7	0	0	–	–	–	–	–	–	–	–

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 5,570 ft · issued 9:00 a.m. MT Oct 20 · 7 models: ECMWF IFS 0.25°, GEM, GFS, ICON, JMA, ARPEGE/AROME, UKMO.

Next 48 h: 0″
Next 7 days: 1.7″
Next 14 days: 1.9″
Biggest day: 1.7″ on Fri, Oct 23

Day	Snow (median)	Low – high	High / low	Precip	Gust	Models
Today	–	–	45° / 27°	0%	14 mph	7
Wed, Oct 21	–	–	49° / 30°	0%	19 mph	7
Thu, Oct 22	–	0″ – 0.9″	45° / 29°	78%	15 mph	7
Fri, Oct 23	1.7″	1.1″ – 2.1″	33° / 24°	92%	16 mph	7
Sat, Oct 24	0.1″	0″ – 0.2″	28° / 19°	39%	14 mph	6
Sun, Oct 25	–	–	28° / 13°	33%	14 mph	6
Mon, Oct 26	–	–	34° / 10°	8%	9 mph	5
Tue, Oct 27	–	–	37° / 18°	19%	8 mph	4
Wed, Oct 28	–	0″ – 0.6″	35° / 15°	27%	11 mph	4
Thu, Oct 29	–	0″ – 0.1″	45° / 12°	21%	11 mph	3
Fri, Oct 30	–	–	45° / 23°	15%	11 mph	2
Sat, Oct 31	–	–	44° / 24°	14%	12 mph	2
Sun, Nov 1	–	–	41° / 27°	11%	16 mph	2
Mon, Nov 2	0.1″	0″ – 0.1″	38° / 31°	18%	24 mph	2

Every model at the base (7 runs) — snowfall in inches per day

Model	Issued	Horizon	10-22	10-23	10-24	10-25	10-26	10-27	10-28	10-29	10-30	10-31	11-01	11-02
ECMWF IFS 0.25°ECMWF	9:00 a.m. MT Oct 20	14 d	1.6	0.9	0.2	0.1	0	0	0	0	0	0	0	0.2
GEMEnvironment Canada	9:00 a.m. MT Oct 20	9 d	0	1.3	0.7	0.3	0	0	0.1	–	–	–	–	–
GFSNOAA NCEP	9:00 a.m. MT Oct 20	14 d	0	2.9	0	0	0	0	0	0	0	0	0	0
ICONDWD	9:00 a.m. MT Oct 20	7 d	0.1	2.3	0.2	0	0	–	–	–	–	–	–	–
JMAJapan Meteorological Agency	9:00 a.m. MT Oct 20	10 d	1.9	1.9	0	0	0	0	1.9	0.1	–	–	–	–
ARPEGE/AROMEMétéo-France	9:00 a.m. MT Oct 20	4 d	0	0	–	–	–	–	–	–	–	–	–	–
UKMOUK Met Office	9:00 a.m. MT Oct 20	6 d	0	1.7	0	0	–	–	–	–	–	–	–	–

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.

Marmot Basin has no measured daily snow series, so the models cannot be verified here; the ranking on resorts with a SNOTEL station is the best guide. How the blend is built and verified.

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

Marmot Basin snow forecast

Summit blend, next 14 days

Base blend, next 14 days

How to read this page