Currently: 19 °F. Overcast. (Weather station: Janesville / Rock County, USA). See more current weatherHour-by-hour Forecast in Janesville — Graph
Detailed Hourly Forecast — Next 24 hours
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| Conditions | Comfort | Precipitation | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Feels Like | Wind | Humidity | Chance | Amount | ||
| 10:00 am Wed, Jan 21 |  | 18 °F | Broken clouds. | 8 °F | 8 mph | ↑ | 84% | 10% | 0.00" (snow) 0.00" (rain) |
| 11:00 am | | 20 °F | Cloudy. | 8 °F | 11 mph | ↑ | 80% | 10% | 0.00" (snow) 0.00" (rain) |
| 12:00 pm | | 21 °F | Overcast. | 8 °F | 13 mph | ↑ | 76% | 10% | 0.00" (snow) 0.00" (rain) |
| 1:00 pm | | 22 °F | Overcast. | 9 °F | 14 mph | ↑ | 74% | 10% | 0.00" (snow) 0.00" (rain) |
| 2:00 pm | | 23 °F | Overcast. | 10 °F | 14 mph | ↑ | 72% | 10% | 0.00" (snow) 0.00" (rain) |
| 3:00 pm | | 23 °F | Overcast. | 10 °F | 15 mph | ↑ | 73% | 10% | 0.00" (snow) 0.00" (rain) |
| 4:00 pm |  | 23 °F | Light snow. Overcast. | 11 °F | 14 mph | ↑ | 74% | 28% | 0.06" (snow) 0.00" (rain) |
| 5:00 pm |  | 24 °F | Light snow. Overcast. | 12 °F | 13 mph | ↑ | 81% | 44% | 0.07" (snow) 0.00" (rain) |
| 6:00 pm | | 24 °F | Light snow. Overcast. | 13 °F | 12 mph | ↑ | 83% | 50% | 0.09" (snow) 0.00" (rain) |
| 7:00 pm | | 24 °F | Light snow. Overcast. | 12 °F | 12 mph | ↑ | 82% | 47% | 0.08" (snow) 0.00" (rain) |
| 8:00 pm | | 23 °F | Light snow. Overcast. | 10 °F | 15 mph | ↑ | 79% | 49% | 0.09" (snow) 0.00" (rain) |
| 9:00 pm | | 22 °F | Light snow. Overcast. | 7 °F | 19 mph | ↑ | 77% | 46% | 0.09" (snow) 0.00" (rain) |
| 10:00 pm | | 20 °F | Light snow. Overcast. | 4 °F | 18 mph | ↑ | 75% | 39% | 0.07" (snow) 0.00" (rain) |
| 11:00 pm | | 17 °F | Light snow. Cloudy. | 1 °F | 17 mph | ↑ | 73% | 31% | 0.07" (snow) 0.00" (rain) |
| 12:00 am Thu, Jan 22 | | 15 °F | Light snow. Broken clouds. | -1 °F | 16 mph | ↑ | 72% | 26% | 0.08" (snow) 0.00" (rain) |
| 1:00 am | | 13 °F | Light snow. Partly cloudy. | -2 °F | 13 mph | ↑ | 72% | 24% | 0.08" (snow) 0.00" (rain) |
| 2:00 am |  | 11 °F | Mostly clear. | -3 °F | 11 mph | ↑ | 71% | 11% | 0.00" (snow) 0.00" (rain) |
| 3:00 am |  | 10 °F | Clear. | -3 °F | 9 mph | ↑ | 72% | 0% | 0.00" (snow) 0.00" (rain) |
| 4:00 am |  | 9 °F | Scattered clouds. | -4 °F | 9 mph | ↑ | 75% | 0% | 0.00" (snow) 0.00" (rain) |
| 5:00 am |  | 9 °F | Broken clouds. | -4 °F | 9 mph | ↑ | 80% | 0% | 0.00" (snow) 0.00" (rain) |
| 6:00 am | | 9 °F | Overcast. | -5 °F | 10 mph | ↑ | 84% | 8% | 0.00" (snow) 0.00" (rain) |
| 7:00 am | | 9 °F | Light snow. Cloudy. | -6 °F | 11 mph | ↑ | 86% | 22% | 0.09" (snow) 0.00" (rain) |
| 8:00 am | | 10 °F | Light snow. Mostly cloudy. | -6 °F | 13 mph | ↑ | 85% | 25% | 0.09" (snow) 0.00" (rain) |
| 9:00 am | | 12 °F | Light snow. Overcast. | -4 °F | 15 mph | ↑ | 79% | 26% | 0.09" (snow) 0.00" (rain) |
| * Updated Wednesday, January 21, 2026 7:42:42 am Janesville time - Weather by CustomWeather, © 2026 | |||||||||