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Holly Springs, North Carolina 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Holly Springs NC
National Weather Service Forecast for: Holly Springs NC
Issued by: National Weather Service Raleigh, NC
Updated: 1:01 am EDT Jul 13, 2025
 
Today

Today: A chance of showers and thunderstorms after 2pm.  Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Patchy Fog
then Chance
T-storms
Tonight

Tonight: A chance of showers and thunderstorms, mainly before 9pm.  Areas of fog after 4am.  Otherwise, mostly cloudy, with a low around 73. Light and variable wind.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms and
Areas Fog
Monday

Monday: Showers and thunderstorms likely after 2pm.  Areas of fog before 8am.  Otherwise, partly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming south around 5 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Areas Fog
then T-storms
Likely
Monday
Night
Monday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, with a low around 73. Calm wind.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
T-storms
Likely

Tuesday

Tuesday: Showers and thunderstorms likely, mainly after 2pm.  Mostly cloudy, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
T-storms
Likely
Tuesday
Night
Tuesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 73. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely then
Chance
Showers
Wednesday

Wednesday: A chance of showers between 8am and 2pm, then showers and thunderstorms likely after 2pm.  Mostly cloudy, with a high near 88. Chance of precipitation is 70%.
Chance
Showers then
T-storms
Likely
Wednesday
Night
Wednesday Night: Showers and thunderstorms likely before 8pm.  Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
T-storms
Likely then
Mostly Cloudy
Thursday

Thursday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 90. Chance of precipitation is 50%.
Partly Sunny
then Chance
T-storms
Hi 92 °F Lo 73 °F Hi 91 °F Lo 73 °F Hi 88 °F Lo 73 °F Hi 88 °F Lo 74 °F Hi 90 °F

Hazardous Weather Outlook
 

Today
 
A chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
A chance of showers and thunderstorms, mainly before 9pm. Areas of fog after 4am. Otherwise, mostly cloudy, with a low around 73. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
 
Showers and thunderstorms likely after 2pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
 
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
 
Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
A chance of showers between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 70%.
Wednesday Night
 
Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Thursday
 
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Thursday Night
 
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Friday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Saturday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Holly Springs NC.

Weather Forecast Discussion
406
FXUS62 KRAH 130808
AFDRAH

Area Forecast Discussion
National Weather Service Raleigh NC
408 AM EDT Sun Jul 13 2025

.SYNOPSIS...
An outflow-reinforeced, backdoor front will dissipate over eastern
and central VA and NC through Monday. Sub-tropical high pressure
will otherwise extend from near Bermuda to the Carolinas throughout
the upcoming week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 400 AM Sunday...

* Persistently hot and humid, with scattered, diurnal convection
  capable of isolated damaging wind gusts and flash flooding Sunday

The models indicate a sub-tropical anticyclone in the mid/upr-
levels, centered in 00Z/13th RAOB data over the nern Gulf and FL
Panhandle, will hold firm, or drift slightly wwd into AL. A narrow
mid and upr-level ridge, and maximum in PWs around 2", will extend
from its northeast and across the Carolinas. The ridge axis will be
flanked 1) to its east by an impulse/vort max now evident in water
vapor satellite data about 70 miles ese of Cape Hatteras, which will
drift generally sswwd and parallel to the coast of the Carolinas,
and 2) a couple of impulses centered near the nrn WV Panhandle and
wrn OH, respectively, which should both become increasingly-sheared
as they drift newd and across the Middle Atlantic.

At the surface, broad low pressure now centered at 1015 mb over cntl
NC will remain over VA and the Carolinas. An outflow-reinforced
backdoor front, evident in surface observational and earlier
regional radar data, extended through the low from the srn Outer
Banks wwd to near RDU then nwd to near LYH and SHD. The front will
probably become further strengthened/reinforced by areas of fog and
low stratus that will develop on its cool side from nern NC through
cntl and ern VA in the next few hours and which will slow diurnal
heating and enhance differential heating/frontogenesis. A sea breeze
will also again develop and spread inland later this afternoon
through evening.

Showers/storms today will probably initiate first along the
aforementioned backdoor front by early this afternoon, while others
will develop in the higher terrain and propagate ewd along outflow
and across the srn Middle Atlantic (NC/VA) Piedmont, probably aided
by the mid/upr-level impulses over the Middle Atlantic. Additional,
pulse/multi-cells, amid weak steering flow and shear (less than 10-
15 kts), will develop/pulse along outflows - with generally scattered
coverage that may have a relative minimum over the srn Piedmont,
where the above forcing mechanisms will be least prevalent and
influential. Pulse, wet microbursts and locally very heavy
rain/flooding in slow-moving cells may result on an isolated basis.
Convection may linger while drifting ewd and across particularly the
nrn Piedmont through this evening, along outflow and the lingering
backdoor front.

It will otherwise be persistently hot and humid as Sat, with heat
index values that should again reach 100-105 F over the ern half of
cntl NC, prior to convective initiation and outflow cooling. It will
be continued mild and muggy/humid tonight, in the low-mid 70s, with
areas of fog in the Coastal Plain and ne Piedmont.

&&

.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...
As of 225 AM Sunday...

A weak surface trough will move across the area Monday resulting in
scattered to numerous showers and storms. The best chance for storms
will be in the afternoon and continuing through much of the evening
and some of the overnight hours. Microbursts with damaging wind
gusts could be possible within these storms. PW values will be above
average around 2 which will continue the threat for heavy rain and
flash flooding. WPC has all of Central NC in a marginal threat for
Flash Flooding Monday. While SPC has not introduced any threat above
general thunderstorms yet, MLCAPE values of 1500 to 2200 J/kg could
warrant a few localized severe storms. Temperatures will be in the
low to mid 90s with one more day oh heat indices in the low 100s
across the Triangle region. Lows overnight will be in the low to mid
70s.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
As of 225 AM Sunday...

Tuesday will be similar to Monday, with the trough exiting the area
and a weak cold front dipping down into the area. A few isolated
morning showers will turn into numerous to widespread storms, again
some could be severe. WPC has all of Central NC in a marginal risk
for Flash Flooding as some storms could be slow moving and produce
heavy rain at times. The front is expected fizzle out west of the
area as weak high pressure tries to build in mid week. Afternoon
diurnally driven scattered showers and storms will be possible each
afternoon and early evening through the rest of the forecast period.
Over the weekend another trough develops thus, expect increased
precip chances Friday- Sunday especially in the afternoon and
evening hours.  Temperatures in the long term will range in the
upper upper 80s to low 90s with lows in the low to mid 70s.

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
As of 215 AM Sunday...

A convective outflow-reinforced, backdoor front, now stretching in
an arc from near LYH to RDU to EWN ,will focus areas of fog and low
stratus on its cool side this morning (ie. from nern NC through cntl
and ern VA), including primarily at RWI. Some may reach, briefly, as
far wwd as RDU around 12Z. Scattered aft-eve convection with heavy
rain, strong downburst wind, and brief flight restrictions can
otherwise be expected by 18-20Z.

Outlook: Areas of morning stratus and fog will be favored along and
on the cool side of a backdoor front that will dissipate over ern
and cntl NC and VA through Mon. Sub-tropical high pressure over the
western and swrn N. Atlantic will otherwise favor a typical
summertime regime of scattered aft-eve convection and patchy
fog/stratus, with the latter likely to shift from the Coastal Plain
(ie. RWI and FAY) early week to the wrn Piedmont and Foothills (ie.
GSO/INT) by mid-week.

&&

.RAH WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

SYNOPSIS...MWS
NEAR TERM...MWS
SHORT TERM...CA
LONG TERM...CA
AVIATION...MWS
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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