Currently: 19 °F. Mostly cloudy. (Weather station: Janesville / Rock County, USA). See more current weatherJanesville Extended Forecast with high and low temperatures
2 Week Extended Forecast in Janesville, Wisconsin, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Wed Jan 21 |  | 25 / 14 °F | Light snow. Cloudy. | 10 °F | 14 mph | ↑ | 73% | 63% | 2.11" | 0 (Low) | 7:19 am | 4:55 pm |
| Thu Jan 22 | | 18 / -7 °F | Light snow. Cloudy. | 2 °F | 14 mph | ↑ | 71% | 46% | 1.45" | 0 (Low) | 7:19 am | 4:56 pm |
| Fri Jan 23 | | -7 / -20 °F | Broken clouds. | -28 °F | 11 mph | ↑ | 56% | 3% | 0.00" | 0 (Low) | 7:18 am | 4:57 pm |
| Sat Jan 24 |  | 0 / -16 °F | Overcast. | -1 °F | 1 mph | ↑ | 61% | 0% | 0.00" | 0 (Low) | 7:17 am | 4:59 pm |
| Sun Jan 25 | | 10 / -2 °F | Light snow late. Overcast. | -1 °F | 5 mph | ↑ | 69% | 38% | 0.69" | 0 (Low) | 7:16 am | 5:00 pm |
| Mon Jan 26 |  | 6 / -2 °F | Morning clouds. | -12 °F | 12 mph | ↑ | 63% | 19% | 0.12" | 0 (Low) | 7:16 am | 5:01 pm |
| Tue Jan 27 | | 25 / 5 °F | Increasing cloudiness. | 12 °F | 13 mph | ↑ | 73% | 4% | 0.00" | 0 (Low) | 7:15 am | 5:03 pm |
| Wed Jan 28 | | 22 / 4 °F | Light snow late. Overcast. | -4 °F | 11 mph | ↑ | 68% | 50% | 0.38" | 0 (Low) | 7:14 am | 5:04 pm |
| Thu Jan 29 | | 20 / 13 °F | Light snow. Mostly cloudy. | 5 °F | 16 mph | ↑ | 73% | 51% | 0.65" | 0 (Low) | 7:13 am | 5:05 pm |
| Fri Jan 30 |  | 20 / 11 °F | Sunny. | 10 °F | 8 mph | ↑ | 70% | 5% | 0.00" | 3 (Moderate) | 7:12 am | 5:06 pm |
| Sat Jan 31 | | 22 / 13 °F | Light snow. Overcast. | 7 °F | 16 mph | ↑ | 84% | 62% | 1.43" | 0 (Low) | 7:11 am | 5:08 pm |
| Sun Feb 1 | | 27 / 18 °F | Mostly cloudy. | 16 °F | 11 mph | ↑ | 78% | 52% | 0.58" | 0 (Low) | 7:10 am | 5:09 pm |
| Mon Feb 2 | | 26 / 18 °F | Partly cloudy. | 13 °F | 14 mph | ↑ | 76% | 6% | 0.00" | 0 (Low) | 7:09 am | 5:10 pm |
| Tue Feb 3 |  | 23 / 14 °F | Mostly sunny. | 14 °F | 6 mph | ↑ | 70% | 5% | 0.00" | 0 (Low) | 7:08 am | 5:12 pm |
| Wed Feb 4 | | 29 / 12 °F | Sunny. | 17 °F | 17 mph | ↑ | 74% | 5% | 0.00" | 3 (Moderate) | 7:06 am | 5:13 pm |
| * Updated Wednesday, January 21, 2026 9:24:10 am Janesville time - Weather by CustomWeather, © 2026 | ||||||||||||