Currently: 52 °F. Partly sunny. (Weather station: Janesville / Rock County, USA). See more current weatherPast Weather in Janesville — Graph
Janesville Temperature Yesterday
Maximum temperature yesterday: 66 °F (at 1:45 pm)
Minimum temperature yesterday: 36 °F (at 12:15 am)
Average temperature yesterday: 48 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 72 °F (Mar 9, 3:45 pm) | 100% (Mar 6, 8:45 am) | 30.19 "Hg (Mar 6, 8:45 am) |
| Low | 3 °F (Mar 17, 6:45 am) | 36% (Mar 9, 3:45 pm) | 29.30 "Hg (Mar 13, 4:55 am) |
| Average | 38 °F | 78% | 29.85 "Hg |
| * Reported Mar 6 8:45 am — Mar 21 9:45 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
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 9:45 am Sat, Mar 21 | | 52 °F | Partly sunny. | 12 mph | ↑ | 67% | 29.90 "Hg | 10 mi |
| 8:45 am | | 45 °F | Partly sunny. | 3 mph | ↑ | 81% | 29.92 "Hg | 10 mi |
| 7:45 am | | 43 °F | Partly sunny. | No wind | ↑ | 87% | 29.91 "Hg | 10 mi |
| 6:45 am |  | 50 °F | Passing clouds. | 3 mph | ↑ | 62% | 29.91 "Hg | 10 mi |
| 5:45 am |  | 39 °F | Clear. | No wind | ↑ | 93% | 29.92 "Hg | 10 mi |
| 5:15 am | | 39 °F | Fog. | 3 mph | ↑ | 93% | 29.92 "Hg | 4 mi |
| 4:55 am | | 39 °F | Fog. | 3 mph | ↑ | 93% | 29.92 "Hg | 4 mi |
| 4:35 am | | 39 °F | Fog. | 3 mph | ↑ | 93% | 29.93 "Hg | 4 mi |
| 4:15 am | | 41 °F | Fog. | 5 mph | ↑ | 87% | 29.94 "Hg | 4 mi |
| 3:55 am | | 39 °F | Fog. | 6 mph | ↑ | 93% | 29.93 "Hg | 4 mi |
| 3:35 am | | 39 °F | Fog. | No wind | ↑ | 93% | 29.94 "Hg | 5 mi |
| 2:55 am | | 39 °F | Fog. | No wind | ↑ | 100% | 29.95 "Hg | 4 mi |
| 2:35 am | | 41 °F | Fog. | No wind | ↑ | 93% | 29.95 "Hg | 4 mi |
| 2:15 am | | 41 °F | Fog. | No wind | ↑ | 93% | 29.95 "Hg | 5 mi |
| 1:55 am | | 41 °F | Fog. | 3 mph | ↑ | 93% | 29.94 "Hg | 5 mi |
| 1:35 am | | 41 °F | Fog. | 3 mph | ↑ | 93% | 29.93 "Hg | 5 mi |
| 1:15 am | | 43 °F | Clear. | 3 mph | ↑ | 93% | 29.94 "Hg | 7 mi |
| 12:55 am | | 43 °F | Fog. | 5 mph | ↑ | 93% | 29.94 "Hg | 5 mi |
| 12:35 am | | 43 °F | Fog. | 6 mph | ↑ | 93% | 29.93 "Hg | 5 mi |
| 11:55 pm Fri, Mar 20 | | 45 °F | Clear. | No wind | ↑ | 87% | 29.95 "Hg | 7 mi |
| 11:15 pm | | 45 °F | Clear. | No wind | ↑ | 93% | 29.95 "Hg | 10 mi |
| 10:55 pm | | 45 °F | Clear. | No wind | ↑ | 93% | 29.95 "Hg | 10 mi |
| 10:35 pm | | 46 °F | Clear. | No wind | ↑ | 87% | 29.95 "Hg | 10 mi |
| 9:55 pm | | 50 °F | Clear. | No wind | ↑ | 76% | 29.94 "Hg | 10 mi |
| 9:35 pm | | 48 °F | Clear. | No wind | ↑ | 82% | 29.95 "Hg | 10 mi |
| 9:15 pm | | 48 °F | Clear. | No wind | ↑ | 82% | 29.94 "Hg | 10 mi |
| 8:45 pm | | 52 °F | Passing clouds. | 7 mph | ↑ | 77% | 29.93 "Hg | 10 mi |
| 7:45 pm | | 57 °F | Passing clouds. | 9 mph | ↑ | 63% | 29.92 "Hg | 10 mi |
| 6:45 pm |  | 61 °F | Scattered clouds. | 5 mph | ↑ | 55% | 29.90 "Hg | 10 mi |
| 5:45 pm | | 63 °F | Scattered clouds. | 8 mph | ↑ | 52% | 29.87 "Hg | 10 mi |
| 4:45 pm | | 64 °F | Scattered clouds. | 9 mph | ↑ | 52% | 29.85 "Hg | 10 mi |
| 3:45 pm | | 64 °F | Scattered clouds. | 12 mph | ↑ | 52% | 29.84 "Hg | 10 mi |
| 2:45 pm | | 64 °F | Scattered clouds. | 14 mph | ↑ | 52% | 29.83 "Hg | 10 mi |
| 1:45 pm | | 66 °F | Scattered clouds. | 14 mph | ↑ | 49% | 29.82 "Hg | 10 mi |
| 12:45 pm | | 64 °F | Scattered clouds. | 9 mph | ↑ | 56% | 29.80 "Hg | 10 mi |
| 11:45 am | | 63 °F | Partly sunny. | 8 mph | ↑ | 56% | 29.80 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||