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Gretna, Nebraska 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Gretna NE
National Weather Service Forecast for: Gretna NE
Issued by: National Weather Service WFO Omaha, NE
Updated: 5:46 pm CDT Jun 30, 2025
 
Tonight

Tonight: Clear, with a low around 60. North northwest wind 5 to 8 mph becoming calm  in the evening.
Clear

Tuesday

Tuesday: Sunny, with a high near 86. Light northwest wind.
Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 63. Calm wind becoming south around 5 mph after midnight.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 89. South wind 5 to 10 mph, with gusts as high as 17 mph.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 68. South wind 6 to 8 mph.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 91. South wind 6 to 13 mph, with gusts as high as 21 mph.
Sunny

Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 73. South wind around 10 mph, with gusts as high as 18 mph.
Mostly Clear
then Slight
Chance
T-storms
Independence
Day
Independence Day: A chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 91. South wind 11 to 17 mph, with gusts as high as 26 mph.
Chance
T-storms

Friday
Night
Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Partly cloudy, with a low around 71. South wind 10 to 14 mph, with gusts as high as 22 mph.
Chance
T-storms then
Showers
Likely
Lo 60 °F Hi 86 °F Lo 63 °F Hi 89 °F Lo 68 °F Hi 91 °F Lo 73 °F Hi 91 °F Lo 71 °F

Hazardous Weather Outlook
 

Tonight
 
Clear, with a low around 60. North northwest wind 5 to 8 mph becoming calm in the evening.
Tuesday
 
Sunny, with a high near 86. Light northwest wind.
Tuesday Night
 
Mostly clear, with a low around 63. Calm wind becoming south around 5 mph after midnight.
Wednesday
 
Sunny, with a high near 89. South wind 5 to 10 mph, with gusts as high as 17 mph.
Wednesday Night
 
Mostly clear, with a low around 68. South wind 6 to 8 mph.
Thursday
 
Sunny, with a high near 91. South wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday Night
 
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South wind around 10 mph, with gusts as high as 18 mph.
Independence Day
 
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. South wind 11 to 17 mph, with gusts as high as 26 mph.
Friday Night
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. South wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday
 
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Southwest wind around 9 mph becoming west northwest in the afternoon. Winds could gust as high as 16 mph.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. North northwest wind 5 to 7 mph.
Sunday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. North wind 5 to 7 mph becoming east in the afternoon.
Sunday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. East wind 3 to 7 mph.
Monday
 
A slight chance of showers. Mostly sunny, with a high near 87. South southeast wind 5 to 7 mph.

 

Forecast from NOAA-NWS for Gretna NE.

Weather Forecast Discussion
178
FXUS63 KOAX 302240
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
540 PM CDT Mon Jun 30 2025

.KEY MESSAGES...

- Isolated to scattered showers and thunderstorms are expected
  this afternoon for areas south of Interstate-80. Brief, weak
  funnel clouds will be possible with any showers.

- Highs are expected in the 80s to low 90s through Thursday,
  with light precipitation chances (20%) Wednesday and Thursday.

- Increased thunderstorm chances (40-60%) arrive Friday evening
  with intermittent storm chances into the weekend.

&&

.DISCUSSION...
Issued at 245 PM CDT Mon Jun 30 2025

Short Term (Today through Thursday)

Upper-level analysis this afternoon reveals a mid- to upper-level
ridge centered over the Four Corners region, with troughing present
across the Great Lakes region. This places much of our area under
prevailing northwesterly flow aloft. A departing shortwave trough
that supported this mornings MCS is now exiting the area. It will be
another warm and muggy day, with highs in the low to mid 80s and
dewpoints lingering in the 60s to low 70s.

Isolated showers and non-severe thunderstorms will remain possible
through the afternoon and evening, particularly south of Interstate-
80 as a weak surface front gradually sinks southward. Given steep
low-level lapse rates, sufficient 0-3 km shear, and just enough
convergence along the boundary, brief and weak funnel clouds may
develop with any showers. These funnel clouds rarely reach the
ground, and in the rare cases they do, they can produce wind speeds
of 50+ mph. Showers will taper off and progress southward into the
early evening. Overnight, areas of fog may develop, though breezy
conditions just above the surface should limit any fog to patchy and
wind-protected areas.

Surface high pressure will build into the region on Tuesday,
bringing mostly clear skies and gradually warming temperatures.
Highs are expected in the upper 80s on Tuesday. Similar conditions
are expected on Wednesday, with highs climbing into the low 90s. Low
PoPs (15-20%) return to northeast NE late Wednesday as a weak
shortwave disturbance slides around the ridge across the northern
Plains. Thursday will be similar, with highs in the low 90s and PoPs
ranging from 15-30% as another weak disturbance passes nearby. No
day looks like a complete washout, but on-and-off isolated to
scattered showers will be possible.

Long Term (Friday and Beyond)

A pattern shift is expected Friday into Saturday as a more robust
shortwave trough enters the central and northern Plains, driving a
frontal boundary into the warm, moist, and unstable airmass in
place. Thunderstorm chances currently peak Friday evening (PoPs 40-
60%), something to keep in mind if you have outdoor plans this
holiday weekend.

The aforementioned front is then expected to stall somewhere across
the region, meandering north and south through the weekend and
resulting in intermittent chances for showers and storms. GEFS and
ECMWF ensemble based machine learning guidance highlights a portion
of the area in a 5-15% probability of severe weather from Friday
through at least Sunday, given the favorable overlap or shear and
instability. While uncertainty remains regarding timing and location
of specific hazards in this extended time frame, this will be a
period to monitor.

High temperatures in the extended period are expected to remain
seasonable and generally in the mid 80s to low 90s.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 539 PM CDT Mon Jun 30 2025

Quiet weather is settling into the area with gusty northwesterly
winds quickly relaxing this evening and setting into a slow 3
knot whisper out of the northwest overnight and continuing
through much of Tuesday, too. Expect clear skies.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...None.
IA...None.

&&

$$

DISCUSSION...Wood
AVIATION...Nicolaisen
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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