Overview Realtime Historical Map View
Dense Fog Advisory
2026-10-23T09:00:00-05:00

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lake IL County. The worst conditions are expected in northeastern portions of the county and near the Wisconsin state line. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

Skokie River At Lake Forest, Il Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 16.53
01-02 13.18
01-03 10.72
01-04 17.19
01-05 12.27
01-06 10.87
01-07 7.75
01-08 8.86
01-09 13.46
01-10 21.34
01-11 30.56
01-12 18.09
01-13 18.84
01-14 15.96
01-15 12.09
01-16 11.17
01-17 8.81
01-18 8.78
01-19 8.66
01-20 8.19
01-21 6.28
01-22 5.59
01-23 6.98
01-24 10.55
01-25 14.64
01-26 23.45
01-27 19.47
01-28 15.28
01-29 11.64
01-30 14.75
01-31 11.8
02-01 13.23
02-02 10.68
02-03 22.71
02-04 18.53
02-05 14.3
02-06 18.12
02-07 12.57
02-08 14.69
02-09 11.59
02-10 18.23
02-11 15.8
02-12 11.71
02-13 9.53
02-14 8.62
02-15 9.28
02-16 8.92
02-17 29.73
02-18 10.74
02-19 15.65
02-20 20.84
02-21 33.02
02-22 15.22
02-23 31.08
02-24 37.68
02-25 27.0
02-26 16.49
02-27 17.98
02-28 29.94
02-29 17.28
03-01 25.09
03-02 16.91
03-03 15.37
03-04 14.17
03-05 15.2
03-06 21.91
03-07 19.55
03-08 17.13
03-09 18.43
03-10 31.33
03-11 44.91
03-12 34.36
03-13 29.6
03-14 30.71
03-15 32.76
03-16 35.37
03-17 26.95
03-18 19.95
03-19 19.36
03-20 21.83
03-21 18.35
03-22 13.89
03-23 13.62
03-24 21.65
03-25 23.56
03-26 28.85
03-27 23.14
03-28 24.12
03-29 30.7
03-30 16.34
03-31 29.49
04-01 31.59
04-02 22.5
04-03 32.67
04-04 34.82
04-05 31.03
04-06 27.98
04-07 22.66
04-08 19.96
04-09 18.32
04-10 26.18
04-11 27.27
04-12 17.98
04-13 15.94
04-14 17.19
04-15 29.4
04-16 39.14
04-17 25.67
04-18 46.29
04-19 51.08
04-20 28.2
04-21 20.87
04-22 15.82
04-23 20.49
04-24 17.08
04-25 13.72
04-26 11.89
04-27 9.57
04-28 11.93
04-29 30.18
04-30 53.69
05-01 63.95
05-02 38.01
05-03 28.84
05-04 24.46
05-05 16.85
05-06 14.19
05-07 13.0
05-08 10.0
05-09 26.02
05-10 15.53
05-11 20.19
05-12 23.13
05-13 52.42
05-14 45.76
05-15 49.64
05-16 25.15
05-17 18.43
05-18 35.83
05-19 24.73
05-20 16.8
05-21 20.95
05-22 25.55
05-23 25.77
05-24 25.62
05-25 16.46
05-26 25.5
05-27 17.91
05-28 14.78
05-29 15.71
05-30 18.76
05-31 12.15
06-01 10.89
06-02 9.22
06-03 7.77
06-04 5.99
06-05 12.3
06-06 13.97
06-07 8.25
06-08 5.42
06-09 9.33
06-10 10.32
06-11 14.19
06-12 18.4
06-13 15.43
06-14 17.23
06-15 15.35
06-16 20.09
06-17 11.54
06-18 13.54
06-19 17.52
06-20 10.87
06-21 13.63
06-22 15.7
06-23 15.77
06-24 21.87
06-25 20.36
06-26 13.8
06-27 33.25
06-28 19.82
06-29 44.69
06-30 14.42
07-01 25.18
07-02 10.08
07-03 9.66
07-04 8.72
07-05 6.8
07-06 7.82
07-07 14.69
07-08 9.97
07-09 5.92
07-10 10.3
07-11 10.51
07-12 28.92
07-13 53.61
07-14 30.56
07-15 11.25
07-16 14.85
07-17 11.36
07-18 7.33
07-19 13.69
07-20 16.28
07-21 13.8
07-22 29.16
07-23 25.75
07-24 44.93
07-25 17.5
07-26 11.03
07-27 8.3
07-28 12.72
07-29 12.34
07-30 7.18
07-31 7.09
08-01 5.56
08-02 6.48
08-03 15.15
08-04 17.21
08-05 7.26
08-06 7.8
08-07 6.4
08-08 12.87
08-09 8.1
08-10 28.12
08-11 16.33
08-12 12.14
08-13 7.91
08-14 6.97
08-15 11.46
08-16 6.33
08-17 6.79
08-18 7.66
08-19 12.82
08-20 7.95
08-21 9.21
08-22 6.98
08-23 3.63
08-24 3.77
08-25 2.91
08-26 3.56
08-27 7.1
08-28 5.68
08-29 15.1
08-30 9.05
08-31 5.95
09-01 4.73
09-02 12.26
09-03 8.93
09-04 18.54
09-05 9.4
09-06 9.65
09-07 5.3
09-08 7.88
09-09 11.42
09-10 9.21
09-11 13.61
09-12 27.52
09-13 36.67
09-14 27.43
09-15 14.55
09-16 10.24
09-17 6.53
09-18 16.09
09-19 25.25
09-20 14.61
09-21 14.83
09-22 9.93
09-23 10.29
09-24 6.63
09-25 6.6
09-26 8.18
09-27 7.28
09-28 14.82
09-29 8.92
09-30 8.74
10-01 8.09
10-02 13.9
10-03 18.42
10-04 13.18
10-05 8.78
10-06 16.86
10-07 13.34
10-08 17.35
10-09 9.97
10-10 7.3
10-11 22.79
10-12 18.46
10-13 14.12
10-14 15.82
10-15 50.36
10-16 19.03
10-17 10.03
10-18 7.52
10-19 8.88
10-20 9.65
10-21 6.2
10-22 5.16
10-23 5.54
10-24 9.97
10-25 12.81
10-26 16.59
10-27 34.16
10-28 18.82
10-29 13.31
10-30 14.0
10-31 20.95
11-01 17.3
11-02 12.4
11-03 14.77
11-04 10.36
11-05 12.38
11-06 14.0
11-07 11.25
11-08 8.54
11-09 11.71
11-10 10.33
11-11 8.14
11-12 10.47
11-13 7.67
11-14 5.75
11-15 5.3
11-16 8.14
11-17 11.41
11-18 13.64
11-19 9.99
11-20 7.34
11-21 6.6
11-22 9.53
11-23 6.95
11-24 8.44
11-25 7.63
11-26 15.98
11-27 19.12
11-28 10.3
11-29 15.11
11-30 11.39
12-01 14.02
12-02 29.14
12-03 17.89
12-04 14.84
12-05 11.94
12-06 9.97
12-07 8.5
12-08 7.11
12-09 6.42
12-10 10.93
12-11 13.73
12-12 13.73
12-13 11.49
12-14 7.91
12-15 24.62
12-16 14.84
12-17 12.94
12-18 10.27
12-19 10.11
12-20 7.55
12-21 11.28
12-22 10.77
12-23 13.02
12-24 12.27
12-25 9.29
12-26 10.34
12-27 9.21
12-28 10.48
12-29 19.28
12-30 21.63
12-31 16.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index