Janesville, MN Live Doppler Radar
Live radar for Janesville, Waseca County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Janesville?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 82 days in the Waseca forecast zone and Waseca County — the most common reported hazard around Janesville, mostly in March and January. Next come damaging thunderstorm winds (55 days) and extreme cold & wind chill (24 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 82 | Nov 2025 | Apr 10, 2019 · $25,000 damage |
| Damaging thunderstorm winds | 55 | Aug 2024 | May 19, 1996 · $4.0 million damage |
| Extreme cold & wind chill | 24 | Jan 2026 | — |
| Blizzards | 21 | Mar 2026 | — |
| High winds | 17 | Mar 2026 | Apr 6, 2021 · $21,000 damage |
| Flash flooding | 12 | Aug 2025 | — |
| Excessive heat | 11 | Aug 2023 | — |
| Flooding | 7 | Sep 2016 | Sep 23, 2010 · $1.0 million damage |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Waseca forecast zone and Waseca County; damage is as reported, not adjusted for inflation.
How much snow does Janesville get?
A normal year brings about 52 inches of snow to Janesville, based on NOAA's 1991–2020 climate normals for the Waseca S Rsch & Outreach Ctr weather station 9.7 miles away. The snowiest month is usually December (11.9 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.7 | 5.8 | 11.9 | 10.7 | 10.8 | 9.0 | 3.0 | 0.4 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Janesville?
The closest NEXRAD Doppler radar is KMPX (Minneapolis, MN), about 51 miles north. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Janesville | View |
|---|---|---|---|
| KMPX Minneapolis, MN | 51 mi north | 3,600 ft | Good — most storms and steady rain or snow show clearly |
| KARX La Crosse, WI | 127 mi east | 13,900 ft | Limited — the beam overshoots the lowest part of storms |
| KFSD Sioux Falls, SD | 155 mi west-southwest | 19,100 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Janesville
Since 1950, NOAA has recorded 130 tornadoes within 25 miles of Janesville, 28 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F4 on April 30, 1967, which passed about 11 miles east of town and caused 6 deaths. The most recent was an EF0 on June 25, 2025, which touched down about 24 miles south-southeast of town.
Hail: 277 reports of 1-inch or larger hail within 25 miles since 1955, 19 of them 2 inches or more; the largest was 4.25-inch hail on June 25, 2010.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Janesville's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Janesville radar FAQ
Where is the nearest weather radar to Janesville, MN?
KMPX (Minneapolis, MN), about 51 miles north. KARX (La Crosse, WI) is 127 miles away and also covers the area.
Does radar show snow in Janesville?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Janesville the lowest scan from KMPX is about 3,600 ft up.
Is TALON's radar for Janesville free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Janesville, follow it right away — see watch vs. warning.
Radar for nearby towns
- Madison Lake, MN radar 8 mi
- Eagle Lake, MN radar 9 mi
- Waterville, MN radar 10 mi
- Waseca, MN radar 11 mi
- Mankato, MN radar 14 mi
- Morristown, MN radar 15 mi
- North Mankato, MN radar 17 mi
- Mapleton, MN radar 18 mi
- Le Center, MN radar 18 mi
- New Richland, MN radar 19 mi