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snowy ski resort
Ski USA - Illinois

Chestnut Mountain Snow History

42.42° N 90.37° W

Weather Forecast for Chestnut Mountain at 244 m altitude

Issued:
5 am 11 Nov 2026 (local time)
Forecast update in:
 hr.  min.

Is Chestnut Mountain snowsure?

The snowiest week in Chestnut Mountain is week 4 of January. There are typically 2.6 snowy days during this week with 9 cm of snowfall. Check out the Chestnut Mountain Snow History graphs below. Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years.

Average monthly snow in Chestnut Mountain

MonthSnow amount (week)Snow days (week)
December5 cm1.5 days
January7 cm2.0 days
February6 cm1.9 days
March4 cm1.0 days
April2 cm0.3 days

Average Snow and Weather Conditions in Chestnut Mountain during November (week 2):

The average snowfall forecast during week 2 of November for Chestnut Mountain is 2 cm. There are typically 0.6 snowy days during this week. Chestnut Mountain expected weather and snow conditions during the second week of November at the middle elevation of the ski area at 244m, based on historical averages over the last 18 years: At this time of year the normal freezing level (1817m) is far above the mid altitude of Chestnut Mountain. A day with snowfall happens on average every second year during the second week of November but on average there is one wet day during this week every year. In the years when snow falls at this time of year, forecast model average snowfall for the week is 4cm. Temperatures averaging above freezing both night and day in Chestnut Mountain during week two of November with average maximum temperature 5.9°C and minimum temperature 3.1°C at the mid altitude. Expect the sun to shine on three out of seven days. Mainly light winds (average 18km/h) are unlikely to affect lift operations but there is a 50% chance that the mean wind speed will exceed more than 30km/h one day. Calm, sunny and below freezing ideal weather days that follow fresh snow (bluebird powder days) are in short supply, occuring this week on average one year in 1


Snow History: Compare Resorts


Compare Chestnut Mountain with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Chestnut Mountain and (2007 – 2026).

Winter
Summer

Chestnut Mountain

 


Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Chestnut Mountain and (2007 – 2026)

Winter
Summer

Bluebird Powder Day
(Fresh snow, mostly sunny, light wind)
Powder Day
(Fresh snow, limited sun, any wind)
Bluebird Day
(Average snow, mostly sunny, light wind)
Very windy days
(>30km/h)

The most cherished days on the mountain in Chestnut Mountain are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. Poorer weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.


Average Snowfall in

Graph showing the average precipitation (snow/rain) in Chestnut Mountain and (2007 – 2026)

Winter
Summer

Snowfall amount
(bar chart)
Days with significant snowfall.
(>5cm)
Days with significant rainfall.
(>5mm)

The snowiest weeks of the year in Chestnut Mountain are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. The risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.


Average Temperature in

Graph showing the average temperature and freezing level at Chestnut Mountain and (2007 – 2026)

Winter
Summer

Average temperature
Maximum
Minimum
Temperatures
Above freezing
Below freezing
Freezing level
Dashed line

The highest and lowest temperatures averaged for each week of the year in Chestnut Mountain are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.