Racine, Wisconsin 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Racine WI
National Weather Service Forecast for:
Racine WI
Issued by: National Weather Service Milwaukee, WI |
Updated: 4:24 pm CDT Jul 26, 2025 |
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This Afternoon
 Chance Showers
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Tonight
 Chance Showers then Patchy Fog
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Sunday
 Patchy Fog then Mostly Sunny
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Sunday Night
 Mostly Clear
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Monday
 Mostly Sunny then Slight Chance T-storms
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Monday Night
 Partly Cloudy
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Tuesday
 Slight Chance Showers
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Tuesday Night
 Chance T-storms
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Wednesday
 Chance T-storms
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Hi 81 °F |
Lo 71 °F |
Hi 86 °F |
Lo 72 °F |
Hi 90 °F |
Lo 73 °F |
Hi 83 °F |
Lo 69 °F |
Hi 77 °F |
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Hazardous Weather Outlook
This Afternoon
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A 40 percent chance of showers. Partly sunny, with a high near 81. South wind around 5 mph. |
Tonight
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A 30 percent chance of showers, mainly before 8pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. |
Sunday
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Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. |
Sunday Night
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Mostly clear, with a low around 72. South wind around 5 mph. |
Monday
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A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Southwest wind 5 to 10 mph. |
Monday Night
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Partly cloudy, with a low around 73. West wind around 5 mph becoming north after midnight. |
Tuesday
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A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83. North wind 5 to 10 mph becoming east in the afternoon. |
Tuesday Night
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A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. Northeast wind around 5 mph. |
Wednesday
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A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. |
Wednesday Night
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Mostly cloudy, with a low around 66. |
Thursday
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Sunny, with a high near 75. |
Thursday Night
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Mostly clear, with a low around 64. |
Friday
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Mostly sunny, with a high near 75. |
Friday Night
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Mostly clear, with a low around 63. |
Saturday
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Mostly sunny, with a high near 77. |
Forecast from NOAA-NWS
for Racine WI.
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Weather Forecast Discussion
938
FXUS63 KMKX 262019
AFDMKX
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
319 PM CDT Sat Jul 26 2025
.KEY MESSAGES...
- Fog is expected to develop tonight with areas of dense fog
(visibility less than a quarter mile) possible.
- Upper 90s heat indices Sunday and +100F heat indices for
Monday.
- Next thunderstorm chances (20-30%) overnight Sunday into
Monday, mainly west of I-39 corridor and cannot rule out a
stronger storm or two.
-Additional periodic shower/storm chances for Tuesday into
Wednesday.
-Milder, near normal temps and less humid for the second half
of the week.
&&
.SHORT TERM...
Issued 315 PM CDT Sat Jul 26 2025
Tonight through Monday night:
Warm frontal boundary continues to lift northward this
afternoon with some lingering light showers. Expecting drier
conditions this evening as the shortwave trough and main
forcing shifts east. However latest satellite/radar imagery
shows an MCV across south- central IA that looks to move
eastward through the evening. While expecting a dry forecast and
not much development along this feature given lack of upper-
level support, will still keep an eye on it just in case.
Otherwise main concern tonight will be the fog potential. Given
the tropical airmass, high dewpoints in the lower 70s, recent
rainfall, and light winds will be favorable for widespread fog
development across southern WI. Will also likely see areas of
dense fog develop as well and may need a dense fog advisory
later this evening/tonight. While the better potential for dense
fog looks to be for areas along and south of I-94, difficult to
pinpoint how widespread and north it may spread tonight. Fog
will persist into Sunday morning. Thus, will hold off on issuing
the advisory at this time and wait to see how it develops to
get a better sense of its coverage.
Sunday will be the start of the hot and humid stretch with
temps climbing into the upper 80s and lower 90s with low to mid
70s dewpoint. Thus heat indices will be in the mid to upper 90s
and briefly touch 100F in some locations Sunday afternoon. While
approaching 100F in some spots, will hold off on a Heat
Advisory as some uncertainty with the temps/heat indices exist
given the lingering fog/cloud potential in the morning as well
as incoming wildfire smoke aloft moving in through the
afternoon. Thus these may impact temps from reaching as hot as
they could.
The heat and humidity will continue for Monday as the upper-
level sub-tropical high gradually meanders westward over the
southeast CONUS. The hottest temps and warmest dewpoints look
to occur on Monday with high in the low to mid 90s and dewpoints
in the mid to upper 70s. Thus likely to exceed 100F and even
105F heat indices. While potential and probability support heat
headline criteria being met Monday, the one wrinkle is the
potential MCS working its way across the region overnight Sunday
into Monday morning as suggest by the end of the CAMs runs
(HRRR and NAM Nest). So may see a similar scenario as we saw
this past Wednesday where lingering showers/storm activity and
cloud cover into Monday morning delayed the onset of the higher
heat indices. However, once things clear it would not take much
for heat indices to climb into the triple digits for the
afternoon. So will monitor trends given this uncertainty to get
a better handle before issuing any heat headlines.
Lastly cannot rule out with this potential MCS Sunday night
into Monday to bring strong to severe storm or two to southern
WI. Given the tropical airmass, elevated dewpoints, 18z HRRR
MUCAPE exceeding 3000 J/kg overnight along with +30 knots of
shear would support the development of some stronger convection.
Thus agree with SPC Day 2 Outlook highlighting the 1 out of 5
risk and will need to monitor how the models trend and handle
this MCS.
Wagner
&&
.LONG TERM...
Issued 315 PM CDT Sat Jul 26 2025
Tuesday through Saturday:
Upper-level ridge persists into Tuesday and may see heat and
humidity linger as well. However, mid-range models continue to
hint at an upper-level shortwave trough over-running the ridge
into Tuesday which may bring another bout of rain and storms to
the area. Thus leaving the heat potential in question. Continue
to the see the upper-level high gradually meanders back
westward through the middle of the week allowing the upper-level
trough across central Canada to work its way across the Upper
Midwest. This will establish northwesterly flow over the Upper-
Mississippi River Valley and ultimately a drier and milder
pattern with near normal temps through the second half of the
week as surface high pressure builds over the region into next
weekend.
Wagner
&&
.AVIATION...
Issued 315 PM CDT Sat Jul 26 2025
Lingering pockets of MVFR ceilings continue this afternoon and
should gradually improve through the evening. Looking at a brief
window of VFR conditions before light southerly winds and
increase surface moisture support the development fog later this
evening through Sunday morning. Expecting lower visibility
(less than 3 miles) across much of southern WI and even the
potential for dense fog and quarter mile visibility especially
for areas/terminals that received rainfall today. Will see these
foggy conditions along with accompanying lower ceilings linger
through daybreak and gradually improve mid to late Sunday
morning as temps warm up.
Wagner
&&
.MARINE...
Issued 315 PM CDT Sat Jul 26 2025
Continue to see the warm frontal boundary lift northward across
the lake with southerly winds established across all of the
Lake Michigan this afternoon. These light to occasionally
moderate southerly winds will prevail into early next week.
There will be additional round of showers and thunderstorms to
track across the Lake Sunday night into Monday and again
midweek. May see more variable winds accompanying any storm
complex that traverses the Lake through early next week. Then a
cold front looks to push across the lake midweek bringing
increased northerly winds followed by high pressure for the end
of the week.
Wagner
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&
$$
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