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Loon Mountain Snow Forecast - 21st September 2026

Loon Mountain Snow Report and Forecast

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GFS

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Updated 21 September 2026 11:43 UTC

Snow Forecast for Loon Mountain

Snow and Weather from 21 September.

For Forecast detail, see below.

Loon Mountain Snow Forecast Highlights

When will there be fresh snow in Loon Mountain?

Loon Mountain Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (610m)
Next Snow?
There is no snow currently in the forecast for Loon Mountain.

Forecast for today in Loon Mountain

Max 17℃ 62°F
Min 8℃ 47°F

Valley temperatures from an overnight low of 8℃ 47°F to daytime highs around 17℃ 62°F

Temperature at BaseTemp at Base

Mon
21

Snow unlikely

CloudClearClearCloud

Cloudy, clear sky, cloudy later.

Forecast times for Loon Mountain are in New York (US/Eastern) time zone.

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Loon Mountain 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Loon Mountain from OpenMeteo(GFS)
Mon
21
Tue
22
Wed
23
Thu
24
Fri
25
Sat
26
Sun
27
WindSW F2NE F2
930m 3,051ft
11℃ 52°F
Cloud
11℃ 52°F
Cloud
14℃ 57°F
Clear
16℃ 61°F
Clear
17℃ 62°F
Cloud
16℃ 62°F
Cloud
17℃ 63°F
Clear
610m 2,001ft
14℃ 58°F
Clear
14℃ 57°F
Cloud
16℃ 60°F
Clear
18℃ 65°F
Clear
19℃ 65°F
Cloud
18℃ 65°F
Cloud
19℃ 67°F
Clear
290m 951ft
17℃ 62°F
Clear
16℃ 61°F
Cloud
18℃ 64°F
Clear
20℃ 68°F
Clear
21℃ 69°F
Cloud
21℃ 69°F
Cloud
22℃ 71°F
Clear
Snow Line
Max Town 17℃ 62°F 16℃ 61°F 18℃ 64°F 20℃ 68°F 21℃ 69°F 21℃ 69°F 22℃ 71°F
Min Town 8℃ 47°F 6℃ 43°F 6℃ 42°F 6℃ 42°F 7℃ 45°F 9℃ 48°F 10℃ 50°F

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

Snow Reliability

Loon Mountain typically enjoys a reliable snow season with an average snow depth of 60 to 100 inches. For the latest snow conditions, check J2Ski for up-to-date information on snowfall and conditions.

Understanding and predicting Snow Conditions in Loon Mountain

Here are our tips for making the most of a trip to Loon Mountain, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Loon Mountain, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Loon Mountain is not always controlled (slopes made safe from avalanche risk) or patrolled. Always check local advice, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Loon Mountain will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Loon Mountain for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.