Horn Lake, Mississippi 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

001
FXUS64 KMEG 131749
AFDMEG

Area Forecast Discussion
National Weather Service Memphis TN
1149 AM CST Tue Jan 13 2026

...New DISCUSSION, AVIATION, FIRE WEATHER...

.KEY MESSAGES...
Issued at 1149 AM CST Tue Jan 13 2026

- Cool and dry weather is expected to prevail through Tuesday.

- There is a high chance (60-80 percent) of rain showers on
  Wednesday, with the best chances in locations east of the
  Mississippi River.

- Near to below normal temperatures are expected for the latter
  half of this week and into early next week.

&&

.DISCUSSION...
(This afternoon through next Monday)
Issued at 1149 AM CST Tue Jan 13 2026

We had another chilly start to our day with morning lows in the
20s and 30s. A 1025 mb high pressure to our south, quasi-zonal
flow aloft, and elevated southwest winds has ushered warmer air
in today with current temperatures in the mid to upper 50s,
warming into the low to mid 60s this afternoon. Dry conditions
will prevail through the rest of today as persistent dry air
remains in place.

Late tonight and into early tomorrow, a pronounced pattern shift
will occur as a cut off upper-low pushes into the Lower
Mississippi Valley and a positively tilted trough dips down over
the Great Lakes region from southern Ontario. At the surface, an
attendant cold front, extending across much of the central CONUS,
will also begin pushing into the Mid-South. This cold front and
aforementioned upper-level systems will all give lift to
increased shower chances (30-60%), moving northwest to southeast,
beginning early tomorrow morning. As we edge past sunset,
rainfall chances (60-80%) increase, especially east of the
Mississippi River. Given the time of day the aforementioned front
moves across our area, temperatures will likely fall throughout
the day, resulting in our high temperatures occurring in the
morning hours. This front will be quickly moving with rain
chances diminishing shortly after sunset tomorrow. Rain amounts
only equate to up to a quarter of an inch. As dry air and strong
CAA will quickly follow this front, all precipitation tomorrow
will fall as rain.

The aforementioned CAA and a quick moving arctic airmass will
turn our eyes to cold temperatures Thursday morning with minimum
apparent temperatures in the teens and afternoon highs struggling
to break out of the 30s across much of the Mid-South. Friday,
this arctic high pressure will slide to our east and south winds
will usher in slightly warmer air increasing afternoon highs into
the 50s. Winds will be elevated with some stronger gusts, up to
30 mph, Friday as the pressure gradient tightens over the Upper-
Mississippi Valley, strongest gusts over northeast Arkansas and
the Missouri Bootheel. As we move into the weekend, the weather
pattern becomes largely unsettled as ensembles are hinting at a
closed low and upper-trough pushing in from Canada and over the
Midwest. Most of the moisture does look to be capped off, north
of the Mid-South. Though we will continue to monitor the
evolution of this system. One thing we do know is, temperatures
will be pretty chilly this weekend and into early next workweek
as another cold airmass and another pretty decent swath of CAA
filters in. Cold weather products may be warranted, especially
Sunday morning as minimum apparent temperatures fall into the
single digits and teens. Stay tuned..

AEH

&&

.AVIATION...
(18Z TAFS)
Issued at 1149 AM CST Tue Jan 13 2026

A tightening pressure gradient associated with a surface low over
the Great Lakes Region will result in gusty south winds at TAF
sites this afternoon. Conditions are favorable for LLWS at MEM,
MKL, and TUP late this evening into early Wednesday as 2k ft
winds increase to around 45 kts. Confidence in rain showers along
the cold front late tonight into Wednesday is moderate to high
(60-80%), and moderate confidence (30-50%) for MVFR ceilings.

&&

.FIRE WEATHER...
Issued at 1149 AM CST Tue Jan 13 2026

Minimum relative humidity values this afternoon will be at or
below 40% with some areas west of the Mississippi River seeing
values less than 35%. Elevated 20ft winds, greater than 10 mph,
will likely lead to an elevated fire danger today. Tomorrow,
wetting rain chances increase, especially east of the Mississippi
River, aided by a cold front. Moving into the latter half of the
week, minimum relative humidity will once again fall less than
40% with some areas around 30%.

&&


.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&

$$

PUBLIC FORECAST...AEH
AVIATION...CJC