Currently: 28 °F. Overcast. (Weather station: Janesville / Rock County, USA). See more current weatherPast Weather in Janesville — Graph
Janesville Temperature Yesterday
Maximum temperature yesterday: 30 °F (at 11:35 pm)
Minimum temperature yesterday: 9 °F (at 12:15 am)
Average temperature yesterday: 20 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 54 °F (Nov 23, 1:45 pm) | 100% (Nov 21, 2:15 am) | 30.43 "Hg (Nov 21, 2:15 am) |
| Low | -6 °F (Dec 4, 7:45 am) | 33% (Nov 23, 1:45 pm) | 29.59 "Hg (Nov 26, 4:35 am) |
| Average | 30 °F | 84% | 30.01 "Hg |
| * Reported Nov 21 2:15 am — Dec 6 2:15 am, Janesville. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Janesville Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 2:15 am Sat, Dec 6 | | 28 °F | Mostly cloudy. | 7 mph | ↑ | 86% | 29.78 "Hg | 10 mi |
| 1:55 am | | 28 °F | Overcast. | 8 mph | ↑ | 86% | 29.78 "Hg | 10 mi |
| 1:35 am | | 28 °F | Overcast. | 6 mph | ↑ | 86% | 29.77 "Hg | 10 mi |
| 12:55 am | | 28 °F | Overcast. | 6 mph | ↑ | 86% | 29.76 "Hg | 10 mi |
| 12:35 am | | 28 °F | Overcast. | 7 mph | ↑ | 86% | 29.76 "Hg | 10 mi |
| 12:15 am | | 28 °F | Overcast. | 9 mph | ↑ | 86% | 29.76 "Hg | 10 mi |
| 11:55 pm Fri, Dec 5 | | 28 °F | Mostly cloudy. | 9 mph | ↑ | 80% | 29.75 "Hg | 10 mi |
| 11:35 pm | | 30 °F | Mostly cloudy. | 8 mph | ↑ | 75% | 29.75 "Hg | 10 mi |
| 10:55 pm | | 28 °F | Overcast. | 3 mph | ↑ | 80% | 29.75 "Hg | 10 mi |
| 10:35 pm | | 28 °F | Overcast. | 3 mph | ↑ | 80% | 29.75 "Hg | 10 mi |
| 10:15 pm | | 28 °F | Mostly cloudy. | 5 mph | ↑ | 80% | 29.75 "Hg | 10 mi |
| 9:35 pm | | 28 °F | Overcast. | 10 mph | ↑ | 80% | 29.74 "Hg | 10 mi |
| 9:15 pm | | 28 °F | Overcast. | 9 mph | ↑ | 74% | 29.74 "Hg | 10 mi |
| 8:45 pm | | 27 °F | Overcast. | 13 mph | ↑ | 80% | 29.74 "Hg | 10 mi |
| 7:45 pm |  | 27 °F | Light snow. Mostly cloudy. | 12 mph | ↑ | 74% | 29.74 "Hg | 10 mi |
| 6:45 pm | | 27 °F | Light snow. Mostly cloudy. | 10 mph | ↑ | 74% | 29.75 "Hg | 10 mi |
| 5:45 pm | | 27 °F | Light snow. Mostly cloudy. | 13 mph | ↑ | 69% | 29.75 "Hg | 5 mi |
| 4:45 pm | | 27 °F | Mostly cloudy. | 14 mph | ↑ | 69% | 29.75 "Hg | 10 mi |
| 3:45 pm |  | 27 °F | Overcast. | 9 mph | ↑ | 69% | 29.74 "Hg | 10 mi |
| 2:45 pm | | 27 °F | Overcast. | 12 mph | ↑ | 64% | 29.76 "Hg | 10 mi |
| 1:45 pm | | 25 °F | Overcast. | 14 mph | ↑ | 69% | 29.78 "Hg | 10 mi |
| 12:45 pm | | 25 °F | Overcast. | 13 mph | ↑ | 59% | 29.81 "Hg | 10 mi |
| 11:45 am | | 21 °F | Overcast. | 12 mph | ↑ | 68% | 29.84 "Hg | 10 mi |
| 10:45 am |  | 19 °F | More clouds than sun. | 14 mph | ↑ | 68% | 29.89 "Hg | 10 mi |
| 9:45 am | | 19 °F | More clouds than sun. | 14 mph | ↑ | 68% | 29.90 "Hg | 10 mi |
| 8:45 am | | 19 °F | More clouds than sun. | 17 mph | ↑ | 68% | 29.90 "Hg | 10 mi |
| 7:45 am | | 18 °F | Overcast. | 13 mph | ↑ | 68% | 29.91 "Hg | 10 mi |
| 6:45 am | | 16 °F | Overcast. | 9 mph | ↑ | 67% | 29.94 "Hg | 10 mi |
| 5:45 am | | 16 °F | Overcast. | 10 mph | ↑ | 57% | 29.96 "Hg | 10 mi |
| 5:15 am | | 14 °F | Overcast. | 9 mph | ↑ | 57% | 29.97 "Hg | 10 mi |
| 4:55 am | | 14 °F | Overcast. | 10 mph | ↑ | 57% | 29.98 "Hg | 10 mi |
| 4:35 am | | 14 °F | Overcast. | 7 mph | ↑ | 57% | 29.98 "Hg | 10 mi |
| 4:15 am | | 14 °F | Overcast. | 5 mph | ↑ | 52% | 29.98 "Hg | 10 mi |
| 3:35 am | | 12 °F | Overcast. | 9 mph | ↑ | 57% | 30.00 "Hg | 10 mi |
| 3:15 am |  | 12 °F | Passing clouds. | 9 mph | ↑ | 57% | 30.00 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||