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Ski USA - Illinois

Chestnut Mountain Snow Forecast

42.42° N 90.37° W

Weather Forecast for Chestnut Mountain at 317m altitude

Issued:
12 am 02 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Moderate rain (total 12.0mm), heaviest on Thu night. Warm (max 32°C on Wed afternoon, min 23°C on Thu night). Wind will be generally light.

Days 5-7 weather summary:

Light rain (total 5.0mm), mostly falling on Mon afternoon. Warm (max 33°C on Sat afternoon, min 22°C on Sat night). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
part cloud
clear
rain showers
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
part cloud
clear
clear
rain showers
thunderstorm
part cloud
rain showers
some clouds
some clouds
clear
rain shwrs
t-storm
risk
some clouds
t-storm
risk
t-storm
risk
clear
some clouds
clear
clear
rain shwrs
t-storm
risk
some clouds
rain shwrs
km/h
15
SW
20
WSW
15
WSW
10
SSW
5
WSW
10
SW
5
SSE
10
S
10
WSW
5
S
5
SSW
5
S
5
SSE
10
S
5
S
10
SE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
2
7
1
1
1
1
max °C
26
31
32
28
27
31
25
30
32
27
31
33
26
30
31
25
min °C
24
27
30
24
27
29
23
25
30
25
28
29
22
25
28
22
 chill °C
24
27
30
24
27
29
23
25
30
25
28
29
22
25
28
22
Humid %
74
55
48
59
62
55
71
78
50
77
61
46
89
72
55
88
Freeze m
4650
4500
4700
4800
4750
4750
4850
4800
4850
4750
4700
4800
4800
4700
4750
4800
Sea lvl1000m2000m3000m4000m5000m
2529312627302428312630312428302424303225273123283225303223283023
Sunrise
6:26
6:28
6:28
6:30
6:31
Sunset
7:34
7:31
7:30
7:29
7:27

Days 7-16 weather summary:

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Avalanche information: National Avalanche Center


Snow Radar

Latest snow reports near Chestnut Mountain:

No recent snow reports

No recent snow reports

Chestnut Mountain Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall:17 Mar 2026
Snow AlertsCreate Alert
Other resorts in USA - Illinois are reporting: powder (0) / good piste (0)

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Snow History

Week 1 of September has on average:

0.0
Bluebird Powder days
Fresh snow, mostly sunny, light wind.
0.0
Powder days
Fresh snow, limited sun, any wind.
0.0
Bluebird days
Average snow, mostly sunny, light wind.


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