Rock River forecast based on 2026/07/01 data updated at 06:00 AM. Temp RH Wind Spd Gust Sky POP6 POP12 Type Pcpn 12hr P POL NOS Haines TD °C % km/h km/h % % mm mm % Index °C 8 AM Wed, 01 Jul 2026 11 100 70 3 Bkn 0 0 2 13 11 AM Wed, 01 Jul 2026 10 100 80 5 Ovc 2 0 0 2 12 2 PM Wed, 01 Jul 2026 8 100 70 7 Ovc 0 0 2 14 5 PM Wed, 01 Jul 2026 9 100 80 4 Ovc 3 33 0 0.0 0 0 2 14 8 PM Wed, 01 Jul 2026 9 100 80 3 Ovc 0 0 2 14 11 PM Wed, 01 Jul 2026 10 100 Calm Bkn 33 0 0 2 14 *** Wed Maximum RH = 100%, Wed Minimum RH = 99% *** *** Wed Minimum Temperature = 7, Wed Maximum Temperature = 13 *** 2 AM Thu, 02 Jul 2026 9 100 60 3 Bkn R- 0.3 0 2 14 5 AM Thu, 02 Jul 2026 8 100 Calm Ovc 25 56 R- TR 0.3 0 2 15 8 AM Thu, 02 Jul 2026 10 100 50 3 Ovc 0 0 2 15 11 AM Thu, 02 Jul 2026 10 100 50 4 Ovc 56 R- 1 0 2 14 2 PM Thu, 02 Jul 2026 7 100 60 5 Ovc R- 5.1 0 2 17 5 PM Thu, 02 Jul 2026 6 100 50 5 Ovc 67 74 RW-/TRW- 3.9 10.0 32 7 2 17 8 PM Thu, 02 Jul 2026 6 100 70 3 Ovc RW-/TRW- 1.8 36 0 28 11 PM Thu, 02 Jul 2026 5 99 50 3 Ovc 66 RW-/TRW- 0.7 23 3 27 *** Thu Maximum RH = 100%, Thu Minimum RH = 99% *** *** Thu Minimum Temperature = 4, Thu Maximum Temperature = 11 *** 2 AM Fri, 03 Jul 2026 6 100 Calm Ovc RW-/TRW- 0.6 23 0 26 5 AM Fri, 03 Jul 2026 6 100 Calm Ovc 97 100 R- 0.7 3.8 0 3 26 8 AM Fri, 03 Jul 2026 6 100 Calm Ovc R- 1.3 0 0 27 11 AM Fri, 03 Jul 2026 5 100 60 3 Ovc 100 R- 1.1 0 3 26 2 PM Fri, 03 Jul 2026 5 99 20 4 Ovc R- 1.6 0 0 27 5 PM Fri, 03 Jul 2026 5 100 350 6 Ovc 100 100 R- 1.6 5.6 0 0 3 27 8 PM Fri, 03 Jul 2026 3 100 320 8 Ovc R- 2.9 0 0 26 11 PM Fri, 03 Jul 2026 4 100 310 6 Ovc 68 R- 0.8 0 3 26 *** Fri Maximum RH = 100%, Fri Minimum RH = 99% *** *** Fri Minimum Temperature = 2, Fri Maximum Temperature = 7 *** 2 AM Sat, 04 Jul 2026 5 99 290 4 Ovc 0 0 0 25 5 AM Sat, 04 Jul 2026 4 100 270 4 Ovc 0 0 0 3.7 0 3 23 8 AM Sat, 04 Jul 2026 6 100 280 4 Bkn 0 0 0 25 11 AM Sat, 04 Jul 2026 6 100 280 3 Bkn 0 0 0 4 24 2 PM Sat, 04 Jul 2026 8 100 200 3 Bkn 0 0 0 27 5 PM Sat, 04 Jul 2026 7 100 Calm Bkn 0 0 0 0.0 0 0 5 27 8 PM Sat, 04 Jul 2026 6 100 100 4 Bkn 0 0 0 26 11 PM Sat, 04 Jul 2026 5 100 100 5 Vrb 0 0 0 4 26 *** Sat Maximum RH = 100%, Sat Minimum RH = 99% *** *** Sat Minimum Temperature = 3, Sat Maximum Temperature = 10 *** 2 AM Sun, 05 Jul 2026 4 100 100 4 Vrb 0 0 0 24 5 AM Sun, 05 Jul 2026 3 100 90 3 Vrb 0 0 0 0.0 0 6 23 8 AM Sun, 05 Jul 2026 5 100 100 3 Sct 0 0 0 24 11 AM Sun, 05 Jul 2026 7 100 100 3 Sct 0 0 0 6 25 2 PM Sun, 05 Jul 2026 10 100 100 3 Sct 0 0 0 28 5 PM Sun, 05 Jul 2026 11 100 100 4 Sct 0 0 0 0.0 0 0 7 28 8 PM Sun, 05 Jul 2026 11 100 100 4 Sct 0 0 0 27 11 PM Sun, 05 Jul 2026 9 100 90 3 Clr 0 0 0 8 27 *** Sun Maximum RH = 100%, Sun Minimum RH = 99% *** *** Sun Minimum Temperature = 1, Sun Maximum Temperature = 15 *** 2 AM Mon, 06 Jul 2026 8 100 Calm Sct 0 0 0 28 5 AM Mon, 06 Jul 2026 7 100 Calm Sct 0 0 0 0.0 0 7 27 8 AM Mon, 06 Jul 2026 10 100 Calm Sct 0 0 0 28 11 AM Mon, 06 Jul 2026 13 100 110 2 Sct 0 0 0 8 28 2 PM Mon, 06 Jul 2026 16 100 110 3 Sct 0 0 0 29 5 PM Mon, 06 Jul 2026 16 100 100 3 Sct 0 0.0 0 0 8 28 °C % km/h km/h % % mm mm % Index °C Temp RH Wind Spd Gust Sky POP6 POP12 Type Pcpn 12hr P POL NOS Haines TD *** Mon Maximum RH = 100%, Mon Minimum RH = 98% *** *** Mon Minimum Temperature = 5, Mon Maximum Temperature = 19 *** *** The normal Mon Minimum Temperature = 9, the normal Maximum Temperature = 21 *** Method last upgraded Sept 30, 2011 ******************************************************************************************************** * The following is a verification using the most recent forecast method on the data from six days ago. * * It is part of "Truth in Advertising," i.e. it helps to evaluate the forecasts for this station. * * * * Under "Forecast - Observed", the actual values are subtracted from the forecast values. For example, * * a wind speed of -5 indicates the forecast wind is 5 km/h too light and +5 indicates the forecast is * * 5 km/h too strong. The wind direction is the number of degrees difference between the forecast and * * actual wind. Wind direction is not verified when the actual winds are light and variable. * * * * Under "Observed", the clouds, precipitation type, and precipitation amount are the observed values * * that must be compared to the forecast values to the left. * * Note that actual one hour precipitation amounts are not available from all stations. * * SH = Showers near but not at the station. * * Showers may also occur between hours and not show up in the verification column. * ******************************************************************************************************** Rock River forecast based on 2026/06/25 data. Temp RH Wind Spd Gust Sky POP6 POP12 Type Pcpn 12hr P POL NOS Haines TD | Forecast - Observed | Observed °C % km/h km/h % % mm mm % Index °C | Temp RH Dir Speed Gust | SKY Type Precip 8 AM Thu, 25 Jun 2026 19 100 Calm Bkn 0 24 2 28 | 3.1 46 ~ -5 -9 ~ 0 11 AM Thu, 25 Jun 2026 21 100 40 2 Bkn 25 0 38 2 28 | 1.5 57 -54 -16 -24 ~ 0 2 PM Thu, 25 Jun 2026 22 100 Calm Vrb 0 43 2 30 | 9.7 17 -99 -21 -33 ~ 0.2 5 PM Thu, 25 Jun 2026 23 100 Calm Sct 48 30 TRW- 0 0.0 72 126 2 29 | 6.9 39 11 -15 -27 ~ 8.4 8 PM Thu, 25 Jun 2026 22 100 Calm Vrb TRW- 0 68 2 29 | 2.0 56 39 -18 -26 ~ 0 11 PM Thu, 25 Jun 2026 20 100 40 2 Sct 41 TRW- 0 61 2 29 | 3.5 39 -48 -28 -36 ~ 0.2 *** Thu Maximum RH = 100%, Thu Minimum RH = 99% *** *** Thu Minimum Temperature = 15, Thu Maximum Temperature = 26 *** 2 AM Fri, 26 Jun 2026 17 100 60 3 Sct 0 46 2 26 | 0.3 47 -11 -20 -28 ~ 0 5 AM Fri, 26 Jun 2026 17 100 70 3 Sct 19 0 0 0.0 28 2 29 | 1.3 34 3 -34 -44 ~ 0 8 AM Fri, 26 Jun 2026 18 100 70 5 Sct 0 22 2 30 | 3.4 31 16 -25 -33 ~ 0 11 AM Fri, 26 Jun 2026 19 100 80 7 Sct 19 0 29 2 29 | 3.7 33 6 -37 -51 ~ 0 2 PM Fri, 26 Jun 2026 19 100 80 6 Sct 0 34 2 30 | 5.7 17 76 0 -13 ~ 0.4 5 PM Fri, 26 Jun 2026 19 100 80 5 Vrb 24 0 0 0.0 36 18 2 30 | 4.0 25 -5 -26 -38 ~ 0.2 8 PM Fri, 26 Jun 2026 18 100 90 4 Sct 0 37 0 54 | 2.5 34 4 -39 -49 ~ 0.2 11 PM Fri, 26 Jun 2026 16 99 90 3 Sct 25 0 38 7 54 | 2.2 22 2 -37 -60 ~ 0 *** Fri Maximum RH = 100%, Fri Minimum RH = 99% *** *** Fri Minimum Temperature = 15, Fri Maximum Temperature = 20 *** 2 AM Sat, 27 Jun 2026 13 100 Calm Bkn 0 38 0 52 | 0.7 16 ~ -4 -16 ~ 0 5 AM Sat, 27 Jun 2026 13 100 90 2 Bkn 20 0 0 0.0 30 7 52 | 0.3 17 ~ 0 -10 ~ 0 8 AM Sat, 27 Jun 2026 14 100 90 4 Sct 0 30 0 54 | 0.2 16 ~ 1 -7 ~ 0 11 AM Sat, 27 Jun 2026 15 100 100 5 Sct 23 0 34 6 51 | -1.0 26 -199 -3 -13 ~ 0 2 PM Sat, 27 Jun 2026 16 100 90 6 Sct 0 0 0 52 | -1.6 32 -6 -29 -39 ~ 0 5 PM Sat, 27 Jun 2026 14 100 90 10 Sct 0 6 0 0.0 0 0 6 50 | -4.1 37 -8 -21 -32 ~ 0 8 PM Sat, 27 Jun 2026 12 100 80 10 Bkn 0 0 0 50 | -3.3 34 -15 -34 -43 ~ 0 11 PM Sat, 27 Jun 2026 10 100 70 10 Bkn 6 0 0 6 50 | -1.8 23 -15 -39 -62 ~ 0 *** Sat Maximum RH = 100%, Sat Minimum RH = 99% *** *** Sat Minimum Temperature = 9, Sat Maximum Temperature = 17 *** 2 AM Sun, 28 Jun 2026 8 100 80 10 Bkn 0 0 0 48 | -2.7 13 -4 -40 -62 ~ 0 5 AM Sun, 28 Jun 2026 7 100 70 6 Bkn 44 36 TRW- 0.1 0.1 50 4 50 | -0.4 8 -18 -51 -67 ~ 0.2 8 AM Sun, 28 Jun 2026 5 100 70 9 Ovc TRW- TR 50 0 49 | -1.0 13 -20 -66 -83 ~ 0.2 11 AM Sun, 28 Jun 2026 7 100 80 7 Ovc 36 R- TR 0 3 48 | -1.2 17 5 -11 -44 ~ 0 2 PM Sun, 28 Jun 2026 6 100 80 6 Ovc 0 0 0 49 | -6.9 30 -193 -3 -18 ~ 0 5 PM Sun, 28 Jun 2026 8 100 80 7 Ovc 34 41 0 0.0 36 13 3 48 | -3.4 21 -181 -2 -13 ~ 0 8 PM Sun, 28 Jun 2026 8 100 90 5 Bkn 0 36 0 49 | -2.4 8 ~ 3 0 ~ 0 11 PM Sun, 28 Jun 2026 8 100 Calm Bkn 41 RW-/TRW- 0.2 33 4 49 | -1.2 0 -161 -15 -25 ~ 3 *** Sun Maximum RH = 100%, Sun Minimum RH = 99% *** *** Sun Minimum Temperature = 4, Sun Maximum Temperature = 9 *** 2 AM Mon, 29 Jun 2026 9 100 Calm Ovc RW-/TRW- 0.6 33 0 51 | 0.4 0 -219 -21 -29 ~ 0.2 5 AM Mon, 29 Jun 2026 8 100 Calm Bkn 47 66 RW-/TRW- 0.2 1.0 28 5 52 | -0.1 0 -127 -21 -26 ~ 0.6 8 AM Mon, 29 Jun 2026 10 100 260 4 Ovc RW-/TRW- 0.3 28 0 56 | 2.0 2 1 -19 -30 ~ 0 11 AM Mon, 29 Jun 2026 11 100 270 6 Ovc 55 R- 1 0 4 55 | 0.5 23 -7 -30 -46 ~ 0 2 PM Mon, 29 Jun 2026 10 100 270 8 Ovc R- TR 0 0 57 | 0.1 31 -2 -24 -42 ~ 0 5 PM Mon, 29 Jun 2026 11 100 260 11 Bkn 2 2 0 1.3 0 0 4 56 | -1.2 47 -12 -18 -35 ~ 0 8 PM Mon, 29 Jun 2026 12 100 270 11 Bkn 0 35 0 56 | -1.1 42 25 -12 -25 ~ 0 11 PM Mon, 29 Jun 2026 11 100 270 9 Bkn 0 0 0 4 54 | 1.0 26 15 -11 -20 ~ 0.6 *** Mon Maximum RH = 100%, Mon Minimum RH = 99% *** *** Mon Minimum Temperature = 5, Mon Maximum Temperature = 13 *** 2 AM Tue, 30 Jun 2026 10 100 270 9 Vrb 0 0 0 52 | 1.9 20 38 -3 -7 ~ 0 5 AM Tue, 30 Jun 2026 10 100 260 6 Sct 0 0 0 0.0 0 3 51 | 2.9 14 84 -2 -7 ~ 0 8 AM Tue, 30 Jun 2026 13 100 270 11 Sct 0 0 0 54 | 4.5 25 17 -15 -28 ~ 0 11 AM Tue, 30 Jun 2026 14 99 280 10 Sct 0 0 0 4 52 | 3.2 32 6 -14 -25 ~ 0 2 PM Tue, 30 Jun 2026 16 100 280 8 Sct 0 0 0 54 | 2.9 41 -15 -5 -14 ~ 0 5 PM Tue, 30 Jun 2026 15 100 280 7 Vrb 0 0.0 0 0 5 52 | 1.2 50 -1 1 -11 ~ 0 °C % km/h km/h % % mm mm % Index °C | Temp RH Dir Speed Gust | SKY Type Precip Temp RH Wind Spd Gust Sky POP6 POP12 Type Pcpn 12hr P POL NOS Haines TD | Forecast - Observed | Observed *** Tue Maximum RH = 100%, Tue Minimum RH = 98% *** *** Tue Minimum Temperature = 8, Tue Maximum Temperature = 19 ***