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Lat Long: 42.42° N 90.37° W
Ski USA - Illinois

Chestnut Mountain Snow Forecast

Weather Forecast for Chestnut Mountain at 172m altitude

Issued: 6 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 21.0mm), heaviest during Sun afternoon. Warm (max 30°C on Tue afternoon, min 19°C on Mon night). Wind will be generally light.

Days 4-6 weather summary:

Moderate rain (total 11.0mm), heaviest on Thu afternoon. Warm (max 29°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
thunderstorm
rain showers
part cloud
thunderstorm
rain showers
light rain
clear
part cloud
clear
clear
clear
light rain
mod rain
clear
part cloud
part cloud
light rain
rain shwrs
t-storm
risk
rain shwrs
some clouds
t-storm
risk
rain shwrs
light rain
clear
some clouds
clear
clear
clear
light rain
mod. rain
clear
some clouds
some clouds
light rain
km/h
10
SSW
20
S
10
NW
10
E
10
E
10
ESE
10
SSE
5
SW
5
NNE
5
NE
10
N
5
ENE
10
E
10
ESE
10
E
20
ENE
20
E
15
ESE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
9
4
3
1
1
3
6
2
max °C
23
28
25
28
27
22
26
30
22
28
29
21
21
19
17
23
24
19
min °C
21
28
21
25
26
19
25
26
19
25
25
18
21
19
14
20
21
15
 chill °C
21
28
21
25
26
19
25
26
19
25
25
18
21
19
13
20
21
14
Humid %
86
79
90
81
69
90
82
67
92
74
55
68
83
92
95
69
60
61
Freeze m
4400
4750
4750
4700
4650
4800
4700
4950
4750
4650
4600
4550
4450
4300
4500
4750
4900
4950
Sea lvl1000m2000m3000m4000m5000m
222824262622262822262721211916212218222823272721262821272720211916222317
Sunrise
6:01
6:01
6:03
6:03
6:05
6:05
Sunset
8:10
8:09
8:07
8:07
8:06
8:04

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 August 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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