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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:
6 am 09 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Light rain (total 2.0mm), mostly falling on Wed morning. Warm (max 27°C on Wed afternoon, min 16°C on Thu night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 22.0mm), heaviest during Sun night. Warm (max 25°C on Sat morning, min 12°C on Mon night). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
thunderstorm
clear
part cloud
part cloud
heavy rain
light rain
light rain
rain showers
t-storm
risk
clear
some clouds
clear
clear
clear
clear
clear
some clouds
cloudy
t-storm
risk
clear
some clouds
some clouds
heavy rain
light rain
light rain
rain shwrs
km/h
10
WSW
10
WNW
10
NW
5
NNE
0
NNE
10
S
15
S
15
S
15
S
15
SW
10
NW
5
N
10
ENE
10
SSE
20
SE
25
S
15
SW
15
NNW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
2
13
5
1
1
max °C
26
27
21
25
26
20
25
25
20
25
22
20
24
25
22
25
25
23
min °C
22
24
18
21
23
16
21
23
18
23
22
15
20
23
19
21
24
12
 chill °C
22
24
18
21
23
16
21
23
18
23
22
15
20
23
19
21
24
11
Humid %
92
49
69
55
40
72
62
50
78
72
84
81
59
57
75
90
83
87
Freeze m
4800
4500
4150
3650
3600
4250
4250
4350
4450
4350
4300
4350
4450
4600
4750
4800
4800
4800
Sea lvl1000m2000m3000m4000m5000m
242620232518232419242218222421232518252618242517242518252217232520232417
Sunrise
6:33
6:35
6:35
6:37
6:37
6:39
Sunset
7:22
7:20
7:17
7:16
7:15
7:13

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 2 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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