Rock County Airport (JVL) 15 Day Weather Forecast, Janesville United States
Current weather conditions and 15 day weather forecast for Rock County Airport in Janesville, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at JVL
| 19 December 2025 Fri -8.9 ° C ( 16°F )  Partly cloudy |
Feels Like : -16.1 ° C / 3.1°F Humidity : % 57 Pressure : 1014 mb Wind Speed : 18 kmph / 11.2 miles from WNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15-day weather forecast for Rock County Airport, Janesville, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Overcast |
-13.5 ° C | -6.8 ° C | -9.8 ° C | % 75 | 36 km/h | 0% |
| 20 December 2025 Sat | Overcast |
-7 ° C | 1.3 ° C | -3.2 ° C | % 86 | 35.6 km/h | 0% |
| 21 December 2025 Sun |  Sunny |
-9.7 ° C | -2.8 ° C | -5.9 ° C | % 76 | 34.9 km/h | 0% |
| 22 December 2025 Mon |  Moderate snow |
-7.4 ° C | 0.1 ° C | -2.6 ° C | % 55 | 29.2 km/h | 89% |
| 23 December 2025 Tue | Overcast |
-3.3 ° C | 5.6 ° C | -0 ° C | % 86 | 19.4 km/h | 0% |
| 24 December 2025 Wed |  Patchy rain nearby |
-0.3 ° C | 3.8 ° C | 2.3 ° C | % 97 | 14.8 km/h | 87% |
| 25 December 2025 Thu |  Fog |
3.7 ° C | 4.5 ° C | 4.2 ° C | % 98 | 12.2 km/h | 0% |
| 26 December 2025 Fri | Overcast |
-3.1 ° C | 1.6 ° C | 0.4 ° C | % 78 | 24.8 km/h | 0% |
| 27 December 2025 Sat | Partly Cloudy |
-4.3 ° C | 0.5 ° C | -2.6 ° C | % 68 | 15.8 km/h | 0% |
| 28 December 2025 Sun |  Moderate or heavy freezing rain |
-2.5 ° C | 0.2 ° C | -0.9 ° C | % 80 | 36 km/h | 88% |
| 29 December 2025 Mon | Patchy rain nearby |
-1.7 ° C | 8 ° C | 3.7 ° C | % 94 | 26.3 km/h | 86% |
| 30 December 2025 Tue | Sunny |
-3 ° C | 3 ° C | -0.6 ° C | % 75 | 18 km/h | 0% |
| 31 December 2025 Wed | Overcast |
-6.4 ° C | 0.2 ° C | -2.2 ° C | % 78 | 26.6 km/h | 0% |
| 01 January 2026 Thu |  Light snow |
-8.3 ° C | -6 ° C | -7.1 ° C | % 78 | 22.7 km/h | 82% |
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