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McCook, Nebraska 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for McCook NE
National Weather Service Forecast for: McCook NE
Issued by: National Weather Service Goodland, KS
Updated: 1:43 pm CDT Aug 1, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 79. Southeast wind around 15 mph.
Mostly Sunny

Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 3am.  Increasing clouds, with a low around 61. Southeast wind 10 to 15 mph.
Chance
T-storms

Saturday

Saturday: Mostly sunny, with a high near 86. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly Sunny
then Mostly
Sunny and
Breezy
Saturday
Night
Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. South wind 10 to 15 mph.
Chance
T-storms

Sunday

Sunday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 85. South wind around 10 mph.
Chance
T-storms

Sunday
Night
Sunday Night: A 30 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 59.
Chance
T-storms

Monday

Monday: Mostly sunny, with a high near 87.
Mostly Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 63.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 93.
Sunny

Hi 79 °F Lo 61 °F Hi 86 °F Lo 61 °F Hi 85 °F Lo 59 °F Hi 87 °F Lo 63 °F Hi 93 °F

Hazardous Weather Outlook
 

This Afternoon
 
Mostly sunny, with a high near 79. Southeast wind around 15 mph.
Tonight
 
A 30 percent chance of showers and thunderstorms, mainly before 3am. Increasing clouds, with a low around 61. Southeast wind 10 to 15 mph.
Saturday
 
Mostly sunny, with a high near 86. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 10 to 15 mph.
Sunday
 
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind around 10 mph.
Sunday Night
 
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59.
Monday
 
Mostly sunny, with a high near 87.
Monday Night
 
Mostly clear, with a low around 63.
Tuesday
 
Sunny, with a high near 93.
Tuesday Night
 
Mostly clear, with a low around 66.
Wednesday
 
Sunny, with a high near 96.
Wednesday Night
 
Mostly clear, with a low around 67.
Thursday
 
Mostly sunny and hot, with a high near 98.

 

Forecast from NOAA-NWS for McCook NE.

Weather Forecast Discussion
101
FXUS63 KGLD 011911
AFDGLD

Area Forecast Discussion
National Weather Service Goodland KS
111 PM MDT Fri Aug 1 2025

.KEY MESSAGES...

- Thunderstorm chances continue through the weekend and perhaps
  into Monday. Storms will be more isolated in nature Sunday and
  Monday but still pose a threat for supercells.

- Gradual warm up through Monday, then hot and mostly dry for
  Tuesday through Friday.

&&

.SHORT TERM /THROUGH MONDAY NIGHT/...
Issued at 100 PM MDT Fri Aug 1 2025

Today and tomorrow, shortwaves rotating around the northern
periphery of a ridge centered over the Four Corners will provide
synoptic scale lift. The low levels continue to be moist with an
upslope component also aiding lift. Thunderstorms will initiate
on the higher terrain and move east into the area.

Tonight, a narrow corridor of moderate instability oriented
north to south will reside in northeast Colorado along with 30
kts of deep layer shear. As storms approach this corridor from
the west early this evening, a few severe storms appear likely,
and may see a brief supercell capable of producing large hail,
damaging winds and perhaps a tornado. As the storms continue
eastward this evening into northwest Kansas and southwest
Nebraska, the environment becomes more stable and shear
gradually decreases. Storms should transition relatively
quickly into an MCS with wind gusts up to 60 mph possible and
locally heavy rainfall. Best chances will be north of Interstate
70 through the overnight hours.

Tomorrow will see a similar scenario, but the instability axis
will be further east, centered more or less over the forecast
area, with deep layer shear once again around 30 kts. Storms
will approach from the west during the late afternoon and early
evening, possibly becoming severe as they encounter the better
instability and shear. Damaging wind, large hail and perhaps a
tornado will be possible if any supercell manages to develop.
Locally heavy rainfall cannot be ruled out, but the signal
tomorrow is rather weak.

Sunday will present a slightly different scenario. The upper
ridge will amplify into the central Rockies with northwest flow
developing over the adjacent plains. There does appear to be a
weak embedded wave and upslope continues in the low levels. The
instability axis remains over the area and deep layer shear
will increase to 40-45 kts. Models suggests more discrete storm
development in the afternoon with best chances in eastern areas,
though coverage may be less compared to previous days. The
instability and shear suggest supercells will be possible
capable of producing large hail, damaging winds and tornadoes
through the evening hours.

The ridge continues to amplify on Monday and the axis expands
eastward across the central Rockies. However, there still
appears to be a thunderstorm risk with northwest flow just
downstream of the ridge axis which may be near or just west of
the area. Models do show discrete thunderstorm development in
the afternoon in an environment characterized by weak to
moderate instability and deep layer shear up to 60 kts. This
once again suggests supercells will be possible though coverage
may end up being rather isolated with the proximity to the
ridge.

&&

.LONG TERM /TUESDAY THROUGH FRIDAY/...
Issued at 100 PM MDT Fri Aug 1 2025

The upper ridge will strengthen and build over the area from the
south Tuesday and Wednesday. Both of these days should be hot
and dry with highs in the mid to upper 90s. The ridge does
retreat a bit Thursday and Friday putting the area on the
northern periphery and under more of a zonal flow. This may open
the door for some low precipitation chances, though it is too
early to say with any certainty. Temperatures remain above
normal through the end of the week.

&&

.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/...
Issued at 1120 AM MDT Fri Aug 1 2025

Low clouds will persist another hour or two at KGLD and through
about mid afternoon at KMCK before finally lifting to VFR.
Showers and thunderstorms will move out of Colorado tonight and
potentially impact both terminals with a brief period of gusty
winds and visibility reductions in rain.

&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...None.
CO...None.
NE...None.

&&

$$

SHORT TERM...024
LONG TERM...024
AVIATION...024
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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