La Crosse, Wisconsin 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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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: 1:28 pm CDT Jul 20, 2025 |
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This Afternoon
 Mostly Sunny
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Tonight
 Mostly Clear then Areas Smoke
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Monday
 Areas Smoke
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Monday Night
 Mostly Cloudy
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Tuesday
 Partly Sunny
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Tuesday Night
 Slight Chance T-storms
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Wednesday
 Sunny
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Wednesday Night
 Chance T-storms
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Thursday
 Slight Chance T-storms then Chance T-storms
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Hi 80 °F |
Lo 60 °F |
Hi 82 °F |
Lo 67 °F |
Hi 88 °F |
Lo 76 °F |
Hi 92 °F |
Lo 73 °F |
Hi 88 °F |
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This Afternoon
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Mostly sunny, with a high near 80. East wind around 6 mph. |
Tonight
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Areas of smoke after midnight. Mostly clear, with a low around 60. East wind around 5 mph becoming calm in the evening. |
Monday
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Areas of smoke. Mostly sunny, with a high near 82. East wind 5 to 7 mph. |
Monday Night
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Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. |
Tuesday
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Partly sunny, with a high near 88. South wind 5 to 8 mph. |
Tuesday Night
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A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. South wind around 6 mph. |
Wednesday
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Sunny, with a high near 92. South wind 6 to 8 mph, with gusts as high as 18 mph. |
Wednesday Night
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A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind 3 to 6 mph. Chance of precipitation is 40%. |
Thursday
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A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Southwest wind 3 to 6 mph. |
Thursday Night
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A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light west wind. |
Friday
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A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Light west wind. |
Friday Night
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A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. |
Saturday
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A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Light southeast wind. |
Forecast from NOAA-NWS
for 2 Miles SW La Crosse WI.
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Weather Forecast Discussion
758
FXUS63 KARX 201712
AFDARX
Area Forecast Discussion
National Weather Service La Crosse WI
1212 PM CDT Sun Jul 20 2025
.KEY MESSAGES...
- Dry and cool into Monday with smokey skies at times.
- The risk increases for repeated rounds of storms starting
Monday night onward into next weekend. It is too early to
ascertain much for details on the timing and strength of the
storms.
- Heat and humidity return for midweek with Wednesday progged to
be the warmest day of the week as heat indices push 95-105
degrees.
&&
.DISCUSSION...
Issued at 1210 PM CDT Sun Jul 20 2025
This Afternoon and Monday: Dry, Cooler, Smokey Skies at Times
Yet another MCS tracked across central Iowa last night and had
all but departed by midday. Low clouds that emanated off the
complex should scatter and wane through the day, though thicker
cumulus could linger sound of I-90 based on some of the latest
proxy soundings and satellite imagery. Rising heights over the
next 24 hours should squash the threat for another overnight MCS
with the surface baroclinic zone becoming more oriented from
NW-to-SE with the aforementioned amplification of the pattern.
As a surface high builds southeastward from the Great Lakes,
subsidence along the edge of the high is expected to bring down
mid-level smoke across Wisconsin this afternoon. This smoke
plume is noticeable in visible imagery over northern WI and the
U.P of Michigan, but to what degree this smoke can reach the
surface can sometimes be a struggle of the HRRR and we will
continue to monitor through the day.
The northeasterly fetch should help keep temperatures
seasonably cool with highs in the upper 70s to low 80s and lows
in the 50s to low 60s through Monday.
Midweek and Beyond: Heat and Humidity Return
A zonal Southern Plains high amplifies through the first half
of the work week, increasing southwesterly flow across the
region. Lower tropospheric warm air advection begins Monday
afternon and continues through Wednesday, with 925-800-mb max
temperatures climbing from +15C to +26C during this 48-hour
window. With us now reaching the peak in local crop/vegetation
evapotranspiration, dewpoints should surge into the mid-70s with
a few locales pushing upper 70 dewpoints based some of the
extreme solutions in the NBM. Despite the risk for periodic
rounds of storms, the global models are fixated on Wednesday
being the warmest day of the week as highs top out in the lower
90s. The ridge flattens as we head into the latter part of the
week, pushing the hottest air back south. Nevertheless, the
sultry airmass lingers and warmer temperatures could return for
next weekend into early next week.
Mid to late Week: Risk for Multiple Rounds of Storms
Broad ridging over the Southern Plains takes hold for the week,
keeping the focus for near daily rounds of MCSs across the
Northern Plains in conjunction with multiple undulations in the
quasi-zonal flow. As is always the case in these scenarios,
small changes in the forecast can have large ramifications for
the strength and positioning of these storms and there is not
much of a signal to guide the forecast. Just a quick perusal of
the last 24 hours of extended HRRR runs exemplifies these
problems, with an MCS that was progged at this time yesterday to
role through MN on Monday morning delayed in recent runs by
6-12 hours and didn`t even materialize in the 06Z run.
Stepping back and looking at the basic environmental picture,
the Monday evening through Tuesday evening timeframe would
feature a window for storm passage before the cap builds in.
Thereafter, we will have to likely wait until Thursday and
Friday for the passage of a deeper shortwave trough to send the
surface front back south and renew the risk for storms. The
basic longwave pattern does not waver much into early the
following week, keeping the risk for periodic clusters of storms
in play.
The severe weather risk for a given day will likely be
localized given the weaker upper level flow, but will be heavily
influenced by the previous day`s convection.
&&
.AVIATION /18Z TAFS THROUGH 18Z MONDAY/...
Issued at 1100 AM CDT Sun Jul 20 2025
CIGS: RAP/HRRR soundings scatter the IFR/MVFR deck out at KRST and
KLSE before 18z, then keeps scattered VFR conditions for the rest of
the daytime hours. A SCT-BKN high level deck likely for tonight into
Monday morning. Some threat for a return of the low stratus by 12z
Monday as the low level flow increase/becomes more southerly.
Whether these clouds would impact KRST or hold west is uncertain.
For now, will stay with VFR and update as needed.
WX/vsby: upper level smoke from Canadian wildfires could reach the
surface on Monday - per latest HRRR. This might lead to minor
reductions in vsby (FU/HZ - perhaps as low as 5SM). Won`t add to the
forecast yet.
WINDS: generally light east through tonight, picking up a bit by mid
morning Mon (around 10+ kts). Not much wind a loft to mix down, so
not expecting much for gusts (sub 20 kts).
&&
.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.
&&
$$
DISCUSSION...Skow
AVIATION...Rieck
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