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La Crosse, Wisconsin 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for 2 Miles SW La Crosse WI
National Weather Service Forecast for: 2 Miles SW La Crosse WI
Issued by: National Weather Service La Crosse
Updated: 1:44 pm CDT Aug 13, 2025
 
Tonight

Tonight: Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm  in the evening.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Sunny

Thursday
Night
Thursday Night: Partly cloudy, with a low around 66. South wind 3 to 5 mph.
Partly Cloudy

Friday

Friday: Mostly sunny, with a high near 87. South wind 5 to 7 mph.
Mostly Sunny

Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 71. South wind 3 to 5 mph.
Partly Cloudy
then Chance
T-storms
Saturday

Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 89. South wind 3 to 6 mph.  Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
Saturday
Night
Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. Light and variable wind.
Chance
Showers

Sunday

Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 85. Southeast wind 3 to 6 mph.
Chance
T-storms

Sunday
Night
Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. Southeast wind around 6 mph.  Chance of precipitation is 40%.
Chance
T-storms

Lo 59 °F Hi 83 °F Lo 66 °F Hi 87 °F Lo 71 °F Hi 89 °F Lo 69 °F Hi 85 °F Lo 66 °F

 

Tonight
 
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Thursday
 
Sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
 
Partly cloudy, with a low around 66. South wind 3 to 5 mph.
Friday
 
Mostly sunny, with a high near 87. South wind 5 to 7 mph.
Friday Night
 
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 3 to 5 mph.
Saturday
 
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday Night
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light and variable wind.
Sunday
 
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. Southeast wind 3 to 6 mph.
Sunday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Southeast wind around 6 mph. Chance of precipitation is 40%.
Monday
 
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 6 mph.
Monday Night
 
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 5 mph becoming light and variable in the evening.
Tuesday
 
A 30 percent chance of showers. Partly sunny, with a high near 79. North wind 3 to 6 mph.
Tuesday Night
 
A 20 percent chance of showers. Partly cloudy, with a low around 60. Light northeast wind.
Wednesday
 
Mostly sunny, with a high near 78. Calm wind becoming northeast around 5 mph.

 

Forecast from NOAA-NWS for 2 Miles SW La Crosse WI.

Weather Forecast Discussion
970
FXUS63 KARX 131842
AFDARX

Area Forecast Discussion
National Weather Service La Crosse WI
142 PM CDT Wed Aug 13 2025

.KEY MESSAGES...

- Heavy rain looks to be a threat from Friday night into Sunday
  night. This could result in some flash flooding. However,
  uncertainty remains high on location and amounts.

- Heat indices on Saturday will range from the mid-90s to around
  100F south of Interstate 94.

&&

.DISCUSSION...
Issued at 142 AM CDT Wed Aug 13 2025

Thursday Night

As warm air advection increases on Thursday night, showers and
storms will develop across the region. With weak, deep shear
across the region, organized convection is not expected.

Friday in the Weekend

The models are in general agreement that several mesoscale
convective complexes will initially develop over the Northern
Plains and and western Minnesota from Friday night into the
weekend and then track along the periphery of 700 mb cap. There
is still plenty on uncertainty on where the edge of the cap
will be located across the Upper Mississippi River Valley and
Great Lakes. The 700 mb 10th to 90th percentiles currently range
from 12 to 14C in northeast Iowa, so there is higher confidence
these complexes will likely move north and northeast of this
area. Meanwhile, for the remainder of the area, the 700 mb 10th
to 90th percentiles currently range from 11 to 13C. This
results in plenty uncertainty on how the mesoscale complexes
will move across Minnesota and Wisconsin. The deterministic runs
of the GFS, NAM, and ECMWF suggest that the Friday night and
Saturday morning mesoscale convective system would likely track
across the northern two-thirds of the forecast area, the
Saturday night into Sunday mesoscale complex would track across
either the northern third or northern half of the area on
Saturday night and Sunday morning, and the one on Sunday night
looks to move across much of the forecast area.

With precipitable water values ranging from 2 to 2.5 inches,
warm cloud layer depths around 4 km, and 0-1 km mixed-layer
CAPES ranging from 1500 to 3000 J/kg underneath the CAP, heavy
rain will be a concern. WPC currently has a marginal risk of
flash flooding through this time period.

While the deep shear remains weak through this time period, the
850 mb and 700 mb winds do climb into the 30 to 40 knot range at
times, so there is concern that a damaging wind gust threat may
develop, but at this time the confidence remains low that this
will occur.

Heat indices on Saturday will be in the 80s north of Interstate
94 and range from the mid-90s to around 100F.

Monday into Friday

The 500 mb ridge extending from the Northern Plains into the
Canadian Prairies provinces flattens early in this period. As
this occurs, a cold front will moves south through the area on
Monday and Monday night. As this occurs, the heavy rain threat
will gradually shift south of the area.

In the wake of this front, a Canadian high pressure system will
build south into the area for Tuesday into Friday. This will
result in near-normal temperatures and slightly higher (33-40
percent) probabilities for below-normal precipitation. Normal
high temperatures are near 80 and low temperatures are near 60.

&&

.AVIATION /12Z TAFS THROUGH 12Z THURSDAY/...
Issued at 1206 PM CDT Wed Aug 13 2025

VFR conditions are favored over the next 24 hours. Exception
appears to be valley fog which may develop late tonight into
early Thursday, primarily along the Wisconsin River with a small
(10-20%) chance for this to impact the Mississippi and LSE. Due
to low confidence, have kept the LSE TAF free of fog mention
with this issuance. Otherwise, some cumulus in the 3-5 kft will
be present this afternoon and may develop in the 4-7 kft layer
during the day Thursday.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.

&&

$$

DISCUSSION...Boyne
AVIATION...Ferguson
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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