Currently: 45 °F. Mostly cloudy. (Weather station: Janesville / Rock County, USA). See more current weatherPast Weather in Janesville — Graph
Janesville Temperature Yesterday
Maximum temperature yesterday: 45 °F (at 2:45 pm)
Minimum temperature yesterday: 27 °F (at 6:45 am)
Average temperature yesterday: 35 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 72 °F (Mar 9, 3:45 pm) | 100% (Feb 27, 2:55 am) | 30.50 "Hg (Feb 27, 2:55 am) |
| Low | 10 °F (Mar 1, 2:55 am) | 24% (Feb 27, 3:45 pm) | 29.30 "Hg (Mar 13, 4:55 am) |
| Average | 38 °F | 79% | 29.97 "Hg |
| * Reported Feb 26 4:15 am — Mar 13 5:45 am, Janesville. Weather by CustomWeather, © 2026 | |||
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 | ||
| 5:45 am Fri, Mar 13 | | 45 °F | Mostly cloudy. | 41 mph | ↑ | 66% | 29.30 "Hg | 10 mi |
| 5:15 am |  | 43 °F | Partly cloudy. | 22 mph | ↑ | 66% | 29.30 "Hg | 10 mi |
| 4:55 am |  | 41 °F | Passing clouds. | 25 mph | ↑ | 70% | 29.30 "Hg | 10 mi |
| 4:35 am | | 41 °F | Passing clouds. | 29 mph | ↑ | 70% | 29.31 "Hg | 10 mi |
| 4:15 am | | 43 °F | Passing clouds. | 29 mph | ↑ | 66% | 29.32 "Hg | 10 mi |
| 3:55 am | | 43 °F | Overcast. | 28 mph | ↑ | 66% | 29.34 "Hg | 10 mi |
| 3:35 am | | 43 °F | Partly cloudy. | 39 mph | ↑ | 66% | 29.37 "Hg | 10 mi |
| 2:55 am | | 43 °F | Mostly cloudy. | 32 mph | ↑ | 71% | 29.37 "Hg | 10 mi |
| 2:35 am | | 41 °F | Overcast. | 39 mph | ↑ | 81% | 29.43 "Hg | 10 mi |
| 2:15 am |  | 39 °F | Light rain. Overcast. | 25 mph | ↑ | 87% | 29.47 "Hg | 10 mi |
| 1:55 am | | 37 °F | Light rain. Overcast. | 20 mph | ↑ | 87% | 29.52 "Hg | 10 mi |
| 1:35 am | | 36 °F | Light rain. Mostly cloudy. | 17 mph | ↑ | 93% | 29.59 "Hg | 10 mi |
| 12:55 am | | 36 °F | Light rain. Overcast. | 23 mph | ↑ | 93% | 29.64 "Hg | 5 mi |
| 12:35 am | | 41 °F | Overcast. | 23 mph | ↑ | 61% | 29.64 "Hg | 10 mi |
| 12:15 am | | 41 °F | Overcast. | 23 mph | ↑ | 61% | 29.65 "Hg | 10 mi |
| 11:55 pm Thu, Mar 12 | | 41 °F | Overcast. | 23 mph | ↑ | 61% | 29.67 "Hg | 10 mi |
| 11:35 pm | | 41 °F | Overcast. | 28 mph | ↑ | 57% | 29.70 "Hg | 10 mi |
| 10:55 pm | | 41 °F | Overcast. | 23 mph | ↑ | 57% | 29.75 "Hg | 10 mi |
| 10:35 pm | | 41 °F | Overcast. | 23 mph | ↑ | 57% | 29.78 "Hg | 10 mi |
| 10:15 pm | | 41 °F | Overcast. | 22 mph | ↑ | 57% | 29.80 "Hg | 10 mi |
| 9:35 pm | | 39 °F | Mostly cloudy. | 17 mph | ↑ | 61% | 29.81 "Hg | 10 mi |
| 9:15 pm | | 37 °F | Overcast. | 13 mph | ↑ | 65% | 29.84 "Hg | 10 mi |
| 8:45 pm | | 39 °F | Mostly cloudy. | 12 mph | ↑ | 56% | 29.89 "Hg | 10 mi |
| 7:45 pm | | 39 °F | Mostly cloudy. | 9 mph | ↑ | 61% | 29.92 "Hg | 10 mi |
| 6:45 pm |  | 41 °F | Cloudy. | 13 mph | ↑ | 49% | 29.96 "Hg | 10 mi |
| 5:45 pm |  | 41 °F | More clouds than sun. | 14 mph | ↑ | 45% | 29.98 "Hg | 10 mi |
| 4:45 pm | | 43 °F | Partly sunny. | 18 mph | ↑ | 42% | 30.01 "Hg | 10 mi |
| 3:45 pm | | 45 °F | Partly sunny. | 13 mph | ↑ | 42% | 30.05 "Hg | 10 mi |
| 2:45 pm |  | 45 °F | Sunny. | 12 mph | ↑ | 39% | 30.08 "Hg | 10 mi |
| 1:45 pm | | 43 °F | Sunny. | 14 mph | ↑ | 46% | 30.12 "Hg | 10 mi |
| 12:45 pm | | 41 °F | Sunny. | 12 mph | ↑ | 45% | 30.15 "Hg | 10 mi |
| 11:45 am | | 39 °F | Sunny. | 8 mph | ↑ | 52% | 30.17 "Hg | 10 mi |
| 10:45 am | | 37 °F | Sunny. | 9 mph | ↑ | 65% | 30.19 "Hg | 10 mi |
| 9:45 am | | 34 °F | Sunny. | 13 mph | ↑ | 75% | 30.19 "Hg | 10 mi |
| 8:45 am | | 30 °F | Sunny. | 9 mph | ↑ | 80% | 30.18 "Hg | 10 mi |
| 7:45 am | | 27 °F | Sunny. | 7 mph | ↑ | 86% | 30.16 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||