Byram, Mississippi 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

023
FXUS64 KJAN 221928
AFDJAN

Area Forecast Discussion
National Weather Service Jackson MS
128 PM CST Mon Dec 22 2025

...New DISCUSSION, AVIATION...

.KEY MESSAGES...

  - Isolated to very scattered light showers will continue across
    the area through tonight.

  - Temperatures will warm to about 10 to 20 degrees above normal
    across the area during the Christmas holiday.

&&

.DISCUSSION...
Issued at 126 PM CST Mon Dec 22 2025

Through next Monday: Low-moisture and weak isentropic ascent will
persist through this evening, supporting varying cloud coverage with
the possibility for isolated light showers across the area.
Currently, mid to upper 60s dewpoints extend to the I-20 corridor.
These conditions are being driven by surface high pressure becoming
wedged into the Lower Mississippi Valley from the east, while quasi-
zonal flow aloft remains in place across the area through much of
the period, with ridging aloft building in late in the work week. As
the surface high becomes the dominant feature of the period beginning
Tuesday, leading to a dry conditions with a period of above average
temperatures heading into Christmas day. High temperatures daily
will generally reach the mid to possible upper 70s daily, while
overnight lows cool into the low to mid 50s through Saturday.

By the weekend, the approach of the next front from the northwest
looks increasingly likely, along with the return to colder
conditions and increase to rain chances./KP/

&&

.AVIATION...
(18Z TAFS)
Issued at 126 PM CST Mon Dec 22 2025

MVFR conditions will prevail at all sites for most of the forecast
period. Dense fog lifted around mid morning, but fog and stratus
were lingering across the southern zones. Guidance shows stratus
continuing through Tuesday morning. Warm and moist conditions will
support fog again tonight and guidance shows fog generally along and
south of I-20. There were some breaks in the clouds this afternoon
that were expected to last into the evening before returning
overnight. Not confident in where the breaks will occur, so went
scattered to broken clouds for western sites. Brought low clouds in
shortly after midnight and fog around 9z. Guidance suggest clouds
will thin through morning and gradually clear out through the day
Tuesday./07/


&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       56  75  54  76 /  10   0   0   0
Meridian      52  74  52  76 /  10   0   0   0
Vicksburg     57  76  55  76 /  10   0   0   0
Hattiesburg   54  77  55  78 /   0   0   0   0
Natchez       57  77  56  77 /  10   0   0   0
Greenville    61  72  57  74 /  10  10  10   0
Greenwood     59  74  56  75 /  20  10  10   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.
&&

$$

KP/07