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Appleton, Wisconsin 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Appleton WI
National Weather Service Forecast for: Appleton WI
Issued by: National Weather Service Green Bay, WI
Updated: 2:11 pm CST Dec 19, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 17. West wind 5 to 9 mph.
Mostly Sunny

Tonight

Tonight: A chance of flurries between 2am and 3am, then a slight chance of snow after 3am.  Mostly cloudy, with a temperature rising to around 24 by 5am. South wind 5 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance Snow
Saturday

Saturday: A chance of snow and freezing rain before 1pm, then a chance of flurries between 1pm and 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 32. West wind 9 to 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 40%.
Chance Wintry
Mix then
Slight Chance
Snow
Saturday
Night
Saturday Night: Mostly clear, with a low around 4. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Mostly Clear

Sunday

Sunday: Sunny, with a high near 17. West northwest wind 5 to 10 mph becoming light and variable  in the afternoon.
Sunny

Sunday
Night
Sunday Night: A 30 percent chance of snow after midnight.  Increasing clouds, with a low around 9.
Partly Cloudy
then Chance
Snow
Monday

Monday: Snow likely, mainly before noon.  Cloudy, with a high near 33. Chance of precipitation is 60%.
Snow Likely

Monday
Night
Monday Night: A slight chance of rain and snow before midnight.  Cloudy, with a low around 29. Chance of precipitation is 20%.
Slight Chance
Rain/Snow
then Mostly
Cloudy
Tuesday

Tuesday: Mostly cloudy, with a high near 36.
Mostly Cloudy

Hi 17 °F Lo 14 °F Hi 32 °F Lo 4 °F Hi 17 °F Lo 9 °F Hi 33 °F Lo 29 °F Hi 36 °F

Hazardous Weather Outlook
 

This Afternoon
 
Mostly sunny, with a high near 17. West wind 5 to 9 mph.
Tonight
 
A chance of flurries between 2am and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a temperature rising to around 24 by 5am. South wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday
 
A chance of snow and freezing rain before 1pm, then a chance of flurries between 1pm and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 32. West wind 9 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Saturday Night
 
Mostly clear, with a low around 4. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Sunday
 
Sunny, with a high near 17. West northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Sunday Night
 
A 30 percent chance of snow after midnight. Increasing clouds, with a low around 9.
Monday
 
Snow likely, mainly before noon. Cloudy, with a high near 33. Chance of precipitation is 60%.
Monday Night
 
A slight chance of rain and snow before midnight. Cloudy, with a low around 29. Chance of precipitation is 20%.
Tuesday
 
Mostly cloudy, with a high near 36.
Tuesday Night
 
Mostly cloudy, with a low around 20.
Wednesday
 
Mostly cloudy, with a high near 38.
Wednesday Night
 
A 20 percent chance of rain. Cloudy, with a low around 32.
Christmas Day
 
Mostly cloudy, with a high near 41.

 

Forecast from NOAA-NWS for Appleton WI.

Weather Forecast Discussion
661
FXUS63 KGRB 191641
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
1041 AM CST Fri Dec 19 2025

Updated aviation portion for 18Z TAF issuance

.KEY MESSAGES...

- Lingering icy spots are possible across area roads this morning,
  but snow will largely end for all but north-central WI

- Light snow possible late Friday night into Saturday morning.
  Accumulations will largely be focused towards north-central Wisconsin
  but a few flurries could get into central and east- central as
  well.

- Westerly gales may return to the marine areas Saturday evening.

&&

.DISCUSSION...
Issued at 247 AM CST Fri Dec 19 2025

The last of the snow will be on its way through the region this
morning. Additional accumulations remain light, around a few
tenths, but slippery stretches remain, especially on untreated
roads across portions of central and north-central Wisconsin.
Winds will remain gusty for a few additional hours behind the
departing snow, with gusts up to 25 to 30 mph likely to last until
the early afternoon.

Attention then turns to the next clipper system in line, which
will move through the region late tonight. Winds aloft will be on
the increase again through the lower to mid levels as a push of
warmer air arrives, but only a few gusts should mix down through
around midnight. As the cold air swings through with the main
portion of the clipper, fairly decent frontogenetic forcing should
bring snow into north-central Wisconsin. This feature is mainly
focused across the border along the Upper Peninsula, but cold air
advection over the rest of the region will likely suffice for at
least some flurries or light snow. Still, snow amounts around a
couple inches will largely be focused towards Vilas County, with
amounts tapering to around an inch by the time you get to a line
from Rhinelander to Iron Mountain and lesser amounts further
south. Probabilistic guidance suggest areas south of a line from
Merrill to Marinette mainly see 20% chance or less of exceeding an
inch of snowfall.

Next round of precipitation is then in the forecast for Monday
night. Although again precipitation amounts will be light, this
may yet be another period that bears watching for mixed
precipitation or freezing drizzle as a warm layer will be in the
area which may hamper ice production to a relatively colder
surface. Where the warmer air lines up as we get closer will drive
the precipitation type for this feature and the impacts.

Temperatures for the period will see a couple swings through the
first few days of the forecast, with highs mainly in the teens
today and Sunday, but in the upper 20s to lower 30s on Saturday.
Then highs steady out for much of the middle of next week, with
highs mainly lingering in the upper 20s to middle 30s.

&&

.AVIATION...for 18Z TAF Issuance
Issued at 1041 AM CST Fri Dec 19 2025

An MVFR stratus deck in place across the region is expected to
lift north this afternoon, leaving VFR conditions in place across
the region. Gusty northwest winds of 15 to 25 knots will ease
below 10 knots by this afternoon.

High clouds will move back into the region this evening ahead of
the next low pressure system. Light snow is then expected later
tonight into Saturday morning as a clipper system tracks through
the northern Great Lakes. Conditions could drop to MVFR with the
snow showers, especially across north-central Wisconsin. Snowfall
amounts should generally be light, with a dusting south of KRHI
and an inch or two at or just north of KRHI. LLWS is expected to
develop as winds increase just below the surface tonight, with
southwest winds of 30-40 knots, turning westerly Saturday
morning.

&&

.MARINE...
Issued at 247 AM CST Fri Dec 19 2025

Strong winds behind the departing snow will keep gales in place
through the morning before beginning to settle through the rest of
the day Saturday. Winds are unlikely to mix to the surface
Saturday night as warmer air builds up aloft, but additional gales
will be possible Saturday evening as the next cold front rolls
through.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION.....Uhlmann
AVIATION.......Kurimski
MARINE.........Uhlmann
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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