Overview Realtime Historical Map View
Heat Advisory
2026-07-15T20:00:00-05:00

* WHAT...Heat index values up to 103 expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From noon Tuesday to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Rock River At Afton, Wi 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 3147.14
01-02 3430.0
01-03 2815.0
01-04 2655.0
01-05 2462.0
01-06 2492.0
01-07 2750.0
01-08 2778.33
01-09 2224.0
01-10 2651.67
01-11 3011.43
01-12 2925.0
01-13 2886.67
01-14 2863.33
01-15 3090.0
01-16 3098.0
01-17 3107.5
01-18 2847.5
01-19 2865.0
01-20 2835.0
01-21 3133.33
01-22 3250.0
01-23 3880.0
01-24 3180.0
01-25 3130.0
01-26 3513.33
01-27 3580.0
01-28 3452.5
01-29 2223.33
01-30 2160.0
01-31 2150.0
02-01 2230.0
02-02 2500.0
02-03 2755.0
02-04 2690.0
02-05 2725.0
02-06 2537.5
02-07 2608.0
02-08 2630.0
02-09 2590.0
02-10 2536.67
02-11 2474.0
02-12 2666.67
02-13 2738.0
02-14 2746.0
02-15 2632.5
02-16 2670.0
02-17 2647.5
02-18 2690.0
02-19 2800.0
02-20 2652.5
02-21 2478.0
02-22 2546.0
02-23 2960.0
02-24 3048.57
02-25 2618.33
02-26 2590.0
02-27 2888.75
02-28 3068.75
02-29 2490.0
03-01 3163.75
03-02 3014.44
03-03 3064.0
03-04 3146.0
03-05 3329.0
03-06 3411.0
03-07 3272.73
03-08 3235.45
03-09 3349.09
03-10 3395.83
03-11 3603.33
03-12 3828.18
03-13 3649.17
03-14 3768.33
03-15 4353.85
03-16 4343.08
03-17 4298.46
03-18 4206.43
03-19 4457.33
03-20 4538.57
03-21 4612.0
03-22 4538.46
03-23 4609.33
03-24 4639.33
03-25 4660.67
03-26 4662.0
03-27 4684.67
03-28 4670.0
03-29 4706.0
03-30 4812.14
03-31 4740.71
04-01 4846.0
04-02 4853.33
04-03 4972.67
04-04 5062.0
04-05 5086.67
04-06 5098.67
04-07 5092.0
04-08 5114.67
04-09 4884.29
04-10 5118.0
04-11 5220.67
04-12 5138.57
04-13 5095.0
04-14 5164.29
04-15 5102.5
04-16 5327.69
04-17 5369.23
04-18 5801.54
04-19 5620.0
04-20 5613.08
04-21 5532.14
04-22 5473.57
04-23 5544.29
04-24 5500.0
04-25 5620.77
04-26 5415.0
04-27 5342.86
04-28 5332.86
04-29 5275.71
04-30 5247.14
05-01 5286.0
05-02 4980.0
05-03 4952.86
05-04 4973.57
05-05 5108.0
05-06 5062.0
05-07 5026.0
05-08 4809.29
05-09 4882.0
05-10 4807.86
05-11 4828.67
05-12 4675.33
05-13 4705.33
05-14 4591.43
05-15 4852.14
05-16 4775.71
05-17 4712.14
05-18 4507.33
05-19 4458.67
05-20 4488.57
05-21 4289.33
05-22 4218.67
05-23 4156.0
05-24 4122.0
05-25 3940.67
05-26 3992.14
05-27 3790.0
05-28 3716.0
05-29 3686.73
05-30 3637.33
05-31 3445.0
06-01 3576.0
06-02 3646.43
06-03 3404.33
06-04 3150.93
06-05 3334.14
06-06 3373.79
06-07 3306.21
06-08 3049.13
06-09 3021.4
06-10 2977.73
06-11 2892.87
06-12 2912.43
06-13 2953.79
06-14 2824.43
06-15 2799.67
06-16 2812.93
06-17 2822.13
06-18 2902.73
06-19 2928.43
06-20 2996.43
06-21 3142.15
06-22 2955.21
06-23 3038.79
06-24 3172.64
06-25 3234.07
06-26 3337.43
06-27 3421.43
06-28 3372.5
06-29 3390.21
06-30 3355.67
07-01 3609.0
07-02 3418.29
07-03 3391.07
07-04 3317.64
07-05 3152.4
07-06 3198.0
07-07 3247.86
07-08 3124.85
07-09 2967.0
07-10 2832.2
07-11 2853.13
07-12 2763.93
07-13 2756.86
07-14 2773.0
07-15 2705.5
07-16 2478.46
07-17 2618.0
07-18 2635.69
07-19 2582.15
07-20 2540.62
07-21 2577.36
07-22 2664.0
07-23 2630.21
07-24 2532.86
07-25 2494.36
07-26 2452.36
07-27 2420.36
07-28 2340.86
07-29 2249.21
07-30 2218.71
07-31 2024.57
08-01 2027.33
08-02 1837.93
08-03 1721.5
08-04 1817.79
08-05 1765.5
08-06 1682.36
08-07 1775.64
08-08 1813.69
08-09 1787.08
08-10 1775.31
08-11 1882.14
08-12 1720.5
08-13 1709.43
08-14 1752.93
08-15 1689.93
08-16 1546.67
08-17 1675.38
08-18 1780.75
08-19 1964.23
08-20 2039.92
08-21 2057.38
08-22 2081.92
08-23 1875.0
08-24 1904.33
08-25 1762.38
08-26 1916.57
08-27 1931.93
08-28 1944.93
08-29 2053.71
08-30 1951.29
08-31 2051.46
09-01 2056.79
09-02 2049.07
09-03 1991.57
09-04 2055.79
09-05 2069.5
09-06 2016.57
09-07 2091.93
09-08 2115.43
09-09 2153.79
09-10 2122.0
09-11 2117.14
09-12 2305.86
09-13 2406.93
09-14 2437.57
09-15 2416.79
09-16 2399.14
09-17 2422.5
09-18 2406.86
09-19 2575.57
09-20 2536.57
09-21 2598.0
09-22 2601.15
09-23 2555.64
09-24 2495.5
09-25 2461.86
09-26 2460.93
09-27 2480.86
09-28 2360.92
09-29 2376.07
09-30 2493.08
10-01 2056.64
10-02 2143.08
10-03 2148.46
10-04 2205.54
10-05 2712.07
10-06 2577.14
10-07 2684.14
10-08 2693.29
10-09 2590.07
10-10 2186.23
10-11 2772.93
10-12 2778.07
10-13 2750.5
10-14 2777.71
10-15 2967.33
10-16 2557.0
10-17 3065.86
10-18 3035.21
10-19 2962.79
10-20 2918.86
10-21 2598.58
10-22 2837.07
10-23 2867.79
10-24 2813.0
10-25 2772.64
10-26 2883.36
10-27 3002.86
10-28 3025.71
10-29 2972.31
10-30 2921.43
10-31 2926.15
11-01 2843.57
11-02 2803.15
11-03 2815.71
11-04 2850.71
11-05 2623.08
11-06 2553.08
11-07 2514.62
11-08 2496.92
11-09 2459.17
11-10 2655.0
11-11 2571.54
11-12 2656.15
11-13 2461.85
11-14 2888.46
11-15 2854.62
11-16 2863.08
11-17 2722.86
11-18 2983.33
11-19 2926.67
11-20 2944.17
11-21 2970.0
11-22 2888.0
11-23 2863.38
11-24 2859.42
11-25 2842.0
11-26 2779.54
11-27 2800.54
11-28 2749.09
11-29 2809.17
11-30 2828.33
12-01 2799.23
12-02 2887.69
12-03 2873.08
12-04 2841.46
12-05 3018.17
12-06 2813.0
12-07 3077.5
12-08 2935.33
12-09 3133.0
12-10 3154.0
12-11 3011.2
12-12 2871.82
12-13 3235.56
12-14 2814.11
12-15 2827.5
12-16 2801.25
12-17 3012.22
12-18 3065.56
12-19 3144.44
12-20 2590.0
12-21 2671.25
12-22 3070.0
12-23 3080.0
12-24 3068.75
12-25 2865.0
12-26 2900.0
12-27 2918.75
12-28 2943.75
12-29 2594.29
12-30 2896.25
12-31 2812.5

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index