countyscore

Weather & Climate · Illinois

Best Weather Counties in Illinois 2026

Ranked by temperatures, precipitation, and extreme weather frequency.

Top 10 — Weather & Climate in Illinois

Score reflects weather & climate only — not overall county quality.

1Union County, IL
65
2Alexander County, IL
63.8
3Johnson County, IL
63.3
4Pulaski County, IL
63.3
5Jefferson County, IL
62.5
6Madison County, IL
62.1
7Massac County, IL
61
8Bond County, IL
60.6
9Clinton County, IL
60.6
10Saline County, IL
60.2

All Illinois Counties — Weather & Climate Rankings

102 counties ranked by weather & climate score. Overall Score shown for context.

#CountyWeather & Climate ScoreOverall Score
1Union County, IL
65
57.4
2Alexander County, IL
63.8
62.2
3Johnson County, IL
63.3
67.7
4Pulaski County, IL
63.3
62.9
5Jefferson County, IL
62.5
51.7
6Madison County, IL
62.1
38.1
7Massac County, IL
61
43.2
8Bond County, IL
60.6
55.2
9Clinton County, IL
60.6
52
10Saline County, IL
60.2
56.8
11Wayne County, IL
59
52.6
12Perry County, IL
58.5
59.8
13Washington County, IL
58.5
63.7
14Jackson County, IL
58.3
36
15Pope County, IL
58.3
67.4
16Franklin County, IL
58.2
55.9
17Williamson County, IL
58.2
49.9
18Coles County, IL
57.8
57.4
19Macoupin County, IL
57.8
52.5
20Gallatin County, IL
57.5
67.6
21Hardin County, IL
57.5
70.7
22Monroe County, IL
57.3
58.5
23St. Clair County, IL
57.2
41.3
24Cumberland County, IL
57.1
62
25Jasper County, IL
57.1
59.7
26Menard County, IL
57.1
59.2
27Moultrie County, IL
56.8
58.4
28Edwards County, IL
56.6
66.7
29Marion County, IL
56.5
46.7
30Wabash County, IL
55.9
55.3
31Clay County, IL
55.6
55.8
32Effingham County, IL
55.6
49.7
33Sangamon County, IL
55.5
33.4
34Vermilion County, IL
55.5
35.5
35Fayette County, IL
55
53.8
36Greene County, IL
54.8
60.2
37Henderson County, IL
54.7
61.7
38Richland County, IL
54.7
51.4
39Champaign County, IL
54.6
34.4
40Iroquois County, IL
54.5
50.3
41Will County, IL
54.4
50.3
42White County, IL
54.3
62.5
43Lawrence County, IL
54.2
55.7
44Christian County, IL
54
55.3
45Edgar County, IL
54
59.8
46Macon County, IL
54
34.6
47Montgomery County, IL
54
45.9
48Piatt County, IL
54
54.9
49Lake County, IL
53.9
47.2
50Adams County, IL
53.8
54.7
51Calhoun County, IL
53.7
63
52Jersey County, IL
53.7
53.4
53Jo Daviess County, IL
53.7
60.8
54Brown County, IL
53.6
69.5
55Cass County, IL
53.6
57.4
56Schuyler County, IL
53.6
58.3
57Hamilton County, IL
53.5
68.6
58Lee County, IL
53.5
51.7
59Randolph County, IL
53.3
58.7
60Logan County, IL
53.1
51.6
61DeKalb County, IL
53
37
62Pike County, IL
53
55.6
63Shelby County, IL
52.8
60.9
64Knox County, IL
52.7
56
65Peoria County, IL
52.6
31
66Tazewell County, IL
52.6
42.5
67Clark County, IL
52.4
55.5
68Crawford County, IL
52.3
52.5
69Grundy County, IL
52.2
44.8
70Stephenson County, IL
52.2
45.6
71Douglas County, IL
52
55.6
72Henry County, IL
51.9
50.3
73Kankakee County, IL
51.8
48
74Mercer County, IL
51.7
63.1
75Boone County, IL
51.6
43.7
76Marshall County, IL
51.6
54.9
77Winnebago County, IL
51.6
42.4
78Ford County, IL
51.4
53.8
79Ogle County, IL
51.4
38.7
80Kane County, IL
51.1
47.1
81Kendall County, IL
51.1
38.6
82LaSalle County, IL
51
40.6
83Rock Island County, IL
51
36.7
84Warren County, IL
51
52.4
85Whiteside County, IL
50.8
46.2
86Bureau County, IL
50.6
45.7
87DuPage County, IL
50.6
54
88Stark County, IL
50.6
61.1
89Livingston County, IL
50.5
51.6
90Woodford County, IL
50.5
58.8
91Fulton County, IL
50.2
53.9
92Morgan County, IL
50.1
43.1
93Hancock County, IL
49.9
58.6
94Cook County, IL
49.8
30.3
95McDonough County, IL
49.6
56.3
96McHenry County, IL
49.3
52.3
97Scott County, IL
49.3
68
98Mason County, IL
48.7
52.8
99De Witt County, IL
47.4
47.8
100McLean County, IL
47.4
48.1
101Carroll County, IL
46.9
60.6
102Putnam County, IL
46.5
59.3

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Best overall counties in IllinoisFull Weather & Climate data on WeatherByCounty