Weather for Madison, Wisconsin
Current Weather
Five Day Weather Forecast
Thu
H: 54°F
L: 35°F
Fri
H: 49°F
L: 31°F
Sat
H: 53°F
L: 31°F
Sun
H: 63°F
L: 38°F
Mon
H: 66°F
L: 42°F
Air Quality
Nitrogen Dioxide: 6.75 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 60 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 7:58 PM
Daylight: 14 hrs 5 mins
Moon Transit: 12:00 AM
Moonset: 5:01 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:39 AM - 2:09 PM
Minor Periods
6:52 PM - 8:22 PM4:31 AM - 6:01 AM
Action Rating: 5 out of 5
Frost Advisory issued April 29 at 11:33PM CDT until April 30 at 8:00AM CDT by NWS Milwaukee/Sullivan WI
Effective: Wed April 29, 2026, 11:33 PM
Expires: Thu April 30, 2026, 7:45 AM
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Dane County. * WHEN...Until 8 AM CDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.
Frost Advisory issued April 29 at 6:16PM CDT until April 30 at 8:00AM CDT by NWS Milwaukee/Sullivan WI
Effective: Wed April 29, 2026, 6:16 PM
Expires: Thu April 30, 2026, 2:30 AM
* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Columbia, Green Lake, Marquette, and Sauk Counties. * WHEN...From midnight tonight to 8 AM CDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.
Frost Advisory issued April 29 at 11:33PM CDT until April 30 at 8:00AM CDT by NWS Milwaukee/Sullivan WI
Effective: Wed April 29, 2026, 11:33 PM
Expires: Thu April 30, 2026, 7:45 AM
* WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Fond du Lac, Columbia, Green Lake, Marquette, Sauk, Dodge, Jefferson, Washington, and Waukesha Counties. * WHEN...Until 8 AM CDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.
Flood Warning issued April 29 at 3:26PM CDT until May 1 at 1:00AM CDT by NWS Milwaukee/Sullivan WI
Effective: Wed April 29, 2026, 3:26 PM
Expires: Thu April 30, 2026, 3:30 AM
...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River At Newville affecting Rock County. Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. Rock River At Jefferson affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Jefferson. * WHEN...Until early Friday morning. * IMPACTS...At 10.0 feet, Water affects low lying areas of residential property in the City of Jefferson. Rock River Park and boat launch is affected near Hwy B in Johnson Creek. * ADDITIONAL DETAILS... - At 3:00 PM CDT Wednesday the stage was 10.4 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Wednesday was 10.6 feet. - Forecast...The river is expected to fall below flood stage tomorrow evening and continue falling to 7.8 feet Wednesday, May 06. - Flood stage is 10.0 feet. - Flood History...This crest compares to a previous crest of 10.4 feet on 04/02/2008. - http://www.weather.gov/safety/flood
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 330 AM CDT.
Flood Warning issued April 29 at 3:26PM CDT until May 3 at 1:00AM CDT by NWS Milwaukee/Sullivan WI
Effective: Wed April 29, 2026, 3:26 PM
Expires: Thu April 30, 2026, 3:30 AM
...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River At Newville affecting Rock County. Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. Rock River At Jefferson affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Fort Atkinson. * WHEN...Until early Sunday morning. * IMPACTS...At 16.5 feet, In the Fort Atkinson area, the following roads are impacted: Sinnissippi Drive, Bark River Road from Kutz Road to Rock River Road, and Rock River Road from Highway 106 to the Fort Atkinson city limits. Water is in park land near the river in Fort Atkinson. * ADDITIONAL DETAILS... - At 3:00 PM CDT Wednesday the stage was 16.6 feet. - Bankfull stage is 14.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Wednesday was 16.8 feet. - Forecast...The river is expected to fall below flood stage Saturday evening and continue falling to 14.9 feet Wednesday, May 06. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 16.6 feet on 06/06/2000. - http://www.weather.gov/safety/flood
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 330 AM CDT.
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 71.12 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 7:58 PM
Daylight: 14 hrs 5 mins
Moon Transit: 12:00 AM
Moonset: 5:01 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:39 AM - 2:09 PM
Minor Periods
6:52 PM - 8:22 PM4:31 AM - 6:01 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.11 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 72.4 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 7:59 PM
Daylight: 14 hrs 8 mins
Moon Transit: 12:26 AM
Moonset: 5:23 AM
Moon Phase: Full
Moon Illumination: 100.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:24 AM - 2:54 PM
Minor Periods
7:59 PM - 9:29 PM4:53 AM - 6:23 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.71 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 69.56 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 8:00 PM
Daylight: 14 hrs 11 mins
Moon Transit: 1:12 AM
Moonset: 5:49 AM
Moon Phase: Full
Moon Illumination: 98.4%
Best Times for Fishing or Hunting
Major Periods
12:42 AM - 3:12 AM1:11 PM - 3:41 PM
Minor Periods
9:04 PM - 10:34 PM5:19 AM - 6:49 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.02 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 82.04 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 8:01 PM
Daylight: 14 hrs 13 mins
Moon Transit: 2:00 AM
Moonset: 6:22 AM
Moon Phase: Full
Moon Illumination: 94.4%
Best Times for Fishing or Hunting
Major Periods
1:30 AM - 4:00 AM2:00 PM - 4:30 PM
Minor Periods
10:07 PM - 11:37 PM5:52 AM - 7:22 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.77 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 69.69 μg/m3
Astronomical
Sun Transit: 12:54 AM
Sunset: 8:03 PM
Daylight: 14 hrs 16 mins
Moon Transit: 2:50 AM
Moonset: 7:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
2:20 AM - 4:50 AM2:50 PM - 5:20 PM
Minor Periods
12:00 AM - 12:00 AM6:31 AM - 8:01 AM
Action Rating: 2 out of 5