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Sheboygan, Wisconsin 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Sheboygan WI
National Weather Service Forecast for: Sheboygan WI
Issued by: National Weather Service Milwaukee, WI
Updated: 5:55 am CDT Jul 11, 2025
 
Today

Today: A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 80. East wind 5 to 10 mph.  Chance of precipitation is 40%.
Chance
Showers then
Slight Chance
T-storms
Tonight

Tonight: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70. Southeast wind around 5 mph becoming south after midnight.
Chance
T-storms

Saturday

Saturday: A chance of showers, with thunderstorms also possible after 10am.  Partly sunny, with a high near 85. Southwest wind 5 to 10 mph.  Chance of precipitation is 50%.
Chance
Showers then
Chance
T-storms
Saturday
Night
Saturday Night: A chance of thunderstorms before 7pm.  Mostly clear, with a low around 65. West wind 5 to 10 mph.  Chance of precipitation is 30%.
Chance
T-storms then
Mostly Clear
Sunday

Sunday: Sunny, with a high near 84. West wind 5 to 10 mph.
Sunny

Sunday
Night
Sunday Night: Mostly clear, with a low around 67. Southwest wind around 5 mph.
Mostly Clear

Monday

Monday: Sunny, with a high near 87. South wind 5 to 10 mph.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 70. Southwest wind 5 to 10 mph.
Mostly Clear

Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 87.
Sunny then
Slight Chance
T-storms
Hi 80 °F Lo 70 °F Hi 85 °F Lo 65 °F Hi 84 °F Lo 67 °F Hi 87 °F Lo 70 °F Hi 87 °F

Hazardous Weather Outlook
 

Today
 
A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 80. East wind 5 to 10 mph. Chance of precipitation is 40%.
Tonight
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind around 5 mph becoming south after midnight.
Saturday
 
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Saturday Night
 
A chance of thunderstorms before 7pm. Mostly clear, with a low around 65. West wind 5 to 10 mph. Chance of precipitation is 30%.
Sunday
 
Sunny, with a high near 84. West wind 5 to 10 mph.
Sunday Night
 
Mostly clear, with a low around 67. Southwest wind around 5 mph.
Monday
 
Sunny, with a high near 87. South wind 5 to 10 mph.
Monday Night
 
Mostly clear, with a low around 70. Southwest wind 5 to 10 mph.
Tuesday
 
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Tuesday Night
 
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.
Wednesday
 
Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Wednesday Night
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
 
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Sheboygan WI.

Weather Forecast Discussion
445
FXUS63 KMKX 110853
AFDMKX

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
353 AM CDT Fri Jul 11 2025

.KEY MESSAGES...

- Active weather continues today into Saturday, with additional
  periods of showers and storms (50-70%).

- Areas south of I-94 toward the WI/IL border have the better
  potential to see heavy rainfall, localized flooding, and a few
  strong to severe storms this afternoon and evening.

- Mostly dry conditions are likely Sunday through at least early
  Tuesday, with shower/storm chances returning later Tuesday or
  Wednesday.

&&

.SHORT TERM...
Issued 346 AM CDT Fri Jul 11 2025

Today through Saturday:

Overall a tricky forecast with this active pattern for the end
of the week. Early this morning we are monitoring two remnant
MCV features that may be a focus for morning shower activity.
The northern MCV is meandering over the lower portion of the
Wisconsin River Valley between WI Dells and Wausau. Have been
seeing sporadic shower activity associated with this feature,
but given this is the only forcing supporting this activity,
shower coverage remains limited and brief. However if this
feature stays parked over the area through the day, then this
could be a focus for additional development.

The secondary MCV feature is from the remnant line of
convection across northern IL. Currently seeing a bit of an
uptick in moderate to heavy rainfall associated with this
feature as it is on the nose of a 30kt 850mb low-level jetlet.
This feature looks more progressive and is moving across
southeast WI, but still could see half to an inch of rainfall.
While not expecting thunder with this round given the increased
CIN and instability remaining south, cannot rule out a rumble or
two along with localized higher amounts exceeding an inch. This
feature is progged to move out as the LLJ pushes east through
daybreak.

Then the focus shifts to the second in a series of mid-level
shortwave troughs located over the SD/MN/NE/IA border early this
morning. Currently producing widespread showers and
thunderstorms from eastern NE and across IA. Expecting this and
will continue activity to continue through daybreak and spread
into northern IL. However, a diminishing trend is shown by the
latest 00z-06z CAMs through the mid morning hours. Still may see
some remnant shower activity along the WI/IL for the first half
of the morning. Then as the shortwave trough axis swings
eastward, expecting this to be the main forcing mechanisms for
the redeveloping convection across IA/northern IL and into
southern WI through the afternoon and evening.

While there is agreement between the models on the focus of the
afternoon/evening convection along the WI/IL border, there are
still several factors that may impact development, strength, and
impacts. First off is the cloud cover from the upstream ongoing
storms as if it lingers would limit temps from warming up and
building high enough instability (>1000 J/kg) for upscale growth
this afternoon. If we see more clearing and warming temps, then
chances for strong to possible severe storm potential would
increase for areas south of I-94 toward the WI/IL border.
Another factor is where the surface boundary/weak area of low
pressure sets up. Growing consensus has it favoring the WI/IL
border, but can shift north favoring stronger development, while
staying south would limit stronger development and the
instability building into the CWA. Another factor could be the
aforementioned MCV features along with any lingering outflow
from early morning activity. Very difficult to pinpoint if these
features would linger or not, but they could be a focus for
additional development this morning or early afternoon, which
may erode the environment earlier on. But also could even be a
trigger for activity further north (north of I-94) outside of
the current area with the better potential.

Nevertheless, there is enough agreement for us to go with
higher PoPs along the border this afternoon (>60%). While the
strong to severe potential remains conditional (from the
factors above), there does seem to be enough deep layer shear
(0-6km >30kt) and if things materialize with storms taping into
the favorable environment and grow upscale, then we could see
sporadic pockets of damaging winds and maybe even some small
hail and a brief spin-up is not out of the realm of possibility
for areas south of I-94. Otherwise, the main impact would be
heavy rainfall with a potential for areas south of I- 94 to see
up to an additional 2 inches and possible even more. If it falls
over areas that received heavy rainfall yesterday then can see
localized flooding, especially over low-lying and urban areas.

Overnight tonight expecting activity to shifts east and
diminish a bit, but lingering showers may persist as the main
longwave trough digs across the northern Plains and into the
Upper Midwest for Saturday. This looks to bring another window
for scattered shower and thunderstorm activity to southern WI,
but will be dependent on how the environment can recover from
today`s activity. Models varying on how they handle Saturday
activity, but the potential is there.

Wagner

&&

.LONG TERM...
Issued 346 AM CDT Fri Jul 11 2025

Saturday night through Thursday:

Rain chances will end Saturday night as the upper trough
finally exits to the east. High pressure controls our weather
regime Sunday/Monday, though this appears to be short lived as
another trough begins to make a dent in the western CONUS ridge.
This feature, generally speaking, arrives in the
Tuesday/Wednesday time frame.

Expect at/above average temperatures for the first half of the
week, with highs well into the 80s and heat index values poking
into the 90s. Periodic rain chances return from late Tuesday
through Thursday. As we have seen with our most recent messy and
active pattern, there isn`t an indication this will be a clean
trough passage. As a result, the PoP forecast is slightly
pessimistic. There will be some dry periods, but pinpointing at
this juncture is folly.

There is general model and ensemble agreement in the upper
trough exiting by Thursday night, with surface high pressure
building into the region thereafter.

Gagan

&&

.AVIATION...
Issued 346 AM CDT Fri Jul 11 2025

Active aviation window today into Saturday. Seeing a round of
morning showers across southeastern WI will diminish through
daybreak. This activity is bringing a periods of lower
visibility and ceilings, but may see these lower flight
conditions linger after this activity ends into the mid-morning
hours. Southerly winds expected to increase through the
afternoon with showers and thunderstorms redeveloping across
southern WI. Areas along and south of I-94 are more favored to
see this activity and will see lower ceilings and visibilities
with any showers/storms. Lower flight conditions may linger
overnight along with scattered shower activity as well.

Wagner

&&

.MARINE...
Issued 346 AM CDT Fri Jul 11 2025

Active pattern today into Saturday with periods of
thunderstorms as a broad low pressure slowly lifts across
northern IL/southern WI today before merging into a stronger
low pressure tracking across Ontario into Saturday. This will
result in increasing southerly winds ahead of the system but as
the low moves overhead Saturday expect light winds before it
pushes out of the area. Expect a brief window of more westerly
winds overnight Saturday into Sunday as high pressure skirts to
the south of Lake Michigan. Southerly winds then return later
Sunday into the start of next week as the high pressure slides
further east.

Wagner

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&

$$

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