The forthcoming forecast outlines a multi-day storm pattern affecting southern Wisconsin. Clouds will increase, with periods of rain and thunderstorms, and a stretch of warm, humid air that raises the risk of severe weather.
The period culminates with an ALERT DAY for potential damaging winds, tornadoes-and-hail-threaten-upper-midwest/”>large hail, and tornadoes. Temperatures will ease back toward seasonal norms later in the week.
Overview of the multi-day storm pattern
The forecast calls for clouds to thicken overnight. Rain and isolated thunderstorms will develop, with pockets of heavy rain possible.
Lows are forecast to dip toward the 40s by Friday morning. Showers should taper Friday, though skies will stay mostly cloudy with highs in the lower 50s.
Friday night looks clear with lows in the low 30s. This sets the stage for a pleasant Saturday before warmer air returns and shifts the pattern toward more unsettled weather through midweek.
Overnight into Friday: rain, storms and cooler nights
After tonight, plan for a damp start as the system slides through the region. Expect bands of rain and isolated thunderstorms that can produce heavy downpours in localized areas.
The cooler air will keep temperatures on the chilly side, with overnight lows near 40°F on Friday. These early-day conditions will influence Friday’s mild to cool finish.
- Increasing clouds with rain and potential storms overnight
- Pockets of heavy rainfall could occur in localized cells
- Friday highs in the lower 50s, followed by a cool, breezy night
Weekend into early next week: warmth, humidity, and rising thunderstorm chances
Following a cool start to Friday, Saturday looks largely pleasant. Warmer, more humid air will move in Saturday night and persist through the weekend.
This sets up a daily pattern of scattered thunderstorms from Sunday through midweek. The risk of severe weather rises, with Monday and Tuesday evenings highlighted as the period with the highest threat, prompting an ALERT DAY for southern Wisconsin.
Saturday night through Tuesday: severe weather risk and daily thunderstorm chances
Thunderstorm activity is expected to become more widespread as humidity climbs. While not every storm will be severe, the combination of strong winds, heavy rain, and the potential for tornadoes means residents should stay tuned to updates.
Sunday is projected to be warmer and breezy, with a 60% chance of showers and highs near 73°F.
- Sunday: 60% chance of showers; highs near 73°F
- Monday: warm and humid; highs in the mid-70s
- Tuesday: higher thunderstorm odds, around 70%
Temperatures and day-by-day expectations
From Sunday through Tuesday, temperatures trend into the mid- to upper-70s with increased humidity and scattered thunderstorms. Showers and storms are expected to persist into Wednesday, with cooler highs near 61°F and lingering morning rain.
By late next week, the pattern should moderate. Lower rain chances and a return to seasonable temperatures are expected.
Wednesday to next week: cooling trend and gradual moderation
Wednesday brings cooler highs around 61°F after the heavier rainfall. Lingering morning showers will give way to improving conditions later in the day.
By late next week, the active pattern will ease. Rain chances will decrease, and temperatures will return to more typical seasonal levels.
Practical tips: During an ALERT DAY and periods of increased thunderstorm risk, seek shelter indoors during storms. Avoid windows and monitor local warnings.
Have an action plan ready if you live in flood-prone areas. Stay prepared for rapidly changing conditions, especially Monday into Tuesday.
Here is the source article for this story: Tracking an active stretch of weather ahead