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Chalco, Nebraska 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Chalco NE
National Weather Service Forecast for: Chalco NE
Issued by: National Weather Service WFO Omaha, NE
Updated: 4:35 am CDT Jul 15, 2025
 
Today

Today: Sunny, with a high near 92. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunny

Tonight

Tonight: Showers and thunderstorms likely, mainly between 1am and 4am.  Increasing clouds, with a low around 67. South southeast wind 6 to 8 mph becoming north northwest after midnight.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Slight Chance
T-storms then
T-storms
Likely
Wednesday

Wednesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 84. West northwest wind 6 to 9 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

Wednesday
Night
Wednesday Night: Showers likely and possibly a thunderstorm.  Increasing clouds, with a low around 59. North wind around 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

Thursday

Thursday: A 20 percent chance of showers before 1pm.  Partly sunny, with a high near 74. North wind around 8 mph.
Slight Chance
Showers

Thursday
Night
Thursday Night: Partly cloudy, with a low around 60. East northeast wind 3 to 7 mph.
Partly Cloudy

Friday

Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 83. South southeast wind 5 to 8 mph, with gusts as high as 16 mph.
Mostly Cloudy
then Slight
Chance
T-storms
Friday
Night
Friday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 69. South southeast wind around 7 mph.
Slight Chance
T-storms then
Showers
Likely
Saturday

Saturday: A chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 89. South wind around 7 mph.
Chance
T-storms

Hi 92 °F Lo 67 °F Hi 84 °F Lo 59 °F Hi 74 °F Lo 60 °F Hi 83 °F Lo 69 °F Hi 89 °F

Hazardous Weather Outlook
 

Today
 
Sunny, with a high near 92. South wind 6 to 10 mph, with gusts as high as 18 mph.
Tonight
 
Showers and thunderstorms likely, mainly between 1am and 4am. Increasing clouds, with a low around 67. South southeast wind 6 to 8 mph becoming north northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
 
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. West northwest wind 6 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 59. North wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
 
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 74. North wind around 8 mph.
Thursday Night
 
Partly cloudy, with a low around 60. East northeast wind 3 to 7 mph.
Friday
 
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. South southeast wind 5 to 8 mph, with gusts as high as 16 mph.
Friday Night
 
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. South southeast wind around 7 mph.
Saturday
 
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 89. South wind around 7 mph.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Southeast wind around 6 mph.
Sunday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Southeast wind 6 to 8 mph.
Sunday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. South southeast wind around 7 mph.
Monday
 
Mostly sunny, with a high near 90. Southeast wind 6 to 8 mph.

 

Forecast from NOAA-NWS for Chalco NE.

Weather Forecast Discussion
010
FXUS63 KOAX 150844
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
344 AM CDT Tue Jul 15 2025

.KEY MESSAGES...

- There is a 50-80% chance of storms mainly after 5 PM today,
  with a 15-40% chance of severe storms, highest in northeast
  Nebraska. The primary threats are damaging winds and localized
  flooding, but some hail and a brief tornado are also
  possible as storms first develop.

- Additional rounds of storms will continue Wednesday into early
  Thursday, and again Friday evening into the weekend. Severe
  weather will be possible at times, with the threat of flooding
  increasing with each successive round.

- Cooler on Thursday with highs in the lower to mid 70s, but we
  quickly warm back up with 80s Friday and mid 80s to lower 90s
  for the weekend into next week.

&&

.DISCUSSION...
Issued at 344 AM CDT Tue Jul 15 2025

Very quiet early this morning as we remained under the western
periphery of upper level ridging while some debris cloud cover
from decaying convection well off to our northwest was pushing
through. Temperatures as of 3 AM were in the upper 60s to mid
70s.

The main story today will be severe weather chances this
afternoon into this evening and possibly into the very early
morning hours of Wednesday. Features of note early this morning
were a surface cold front slowly pushing south of the ND/SD
border, a lee cyclone over eastern WY, and some shortwave energy
moving east through MT/ID/WY. The front will continue southward
today approaching the NE/SD border by this afternoon with the
shortwave pushing into the NE panhandle around the same time.
Meanwhile, the surface low will meander southward into CO with
the main result of that being the low level jet/moisture
transport tonight pointing into central and southeast NE as
opposed to SD. Ahead of these features today, expect a warm,
humid, and unstable airmass to develop with temperatures in the
upper 80s to mid 90s and dewpoints in the upper 60s to lower 70s
combining with steep mid-level lapse rates to lead to SBCAPE
values of 2000-3000+ J/kg across central into northeast NE.

As the front and shortwave push in, expect thunderstorm
development in north-central NE into south-central SD in roughly
the 2-4 PM timeframe. Initial cells will pose some hail threat,
but lack of deep layer shear will keep things a bit
disorganized and strong forcing will lead to an MCS development
not long after storm initiation. As a result, expect a quick
transition to a damaging wind and heavy rain/localized flooding
threat. The big question will be how far southeast does the
primary wind threat extend, as 0-3 km shear in the 20-25 kt
range won`t be enough to keep the storms from becoming outflow
dominant. In addition, instability really tapers off as you move
into southeast NE, so would expect an overall weakening trend
anyway, though moisture transport pointing into the area should
keep things going for a bit. Regarding the heavy
rainfall/flooding threat, guidance is in decent agreement that
storms should move through pretty quickly, and precipitable
water values of 1.50-1.75" and warm cloud depths around 3500 m
don`t exactly scream high end flooding threat. However, they`ll
still be decently efficient rain-producing storms and given
fairly saturated soils, it wouldn`t take much training to lead
to some localized flooding. Finally, should mention that there
is a small tornado threat (2% chance per SPC outlook), but this
would likely be confined to the areas where storms first go up
and before they become outflow dominant, so for us, the most
likely area would be in northeast NE, with the threat likely
significantly dropping off as storms push southeast.

Expect some lingering storms into early Wednesday as CAMs
depict an MCV feature pushing into northwest IA while the
surface front remains in the forecast area. The big question
continues to be how far south the front is able to make it
Wednesday, with guidance still somewhat split on keeping it in
the forecast area and pushing it into KS/MO. Wherever it sets
up, expect storm re-development Wednesday afternoon/evening with
guidance suggesting a another very unstable airmass near and
south of the boundary. For what it`s worth, HREF guidance
suggests about a 60% chance the front is south of I-80, and I
tend to lean toward farther south solutions with precip likely
helping it to push farther south, but still enough model spread
that it`s definitely worth keeping an eye on. Wherever storms do
occur, expect mainly a damaging wind and heavy rain/flooding
threat, with probably a higher risk of training thunderstorms in
this particular setup.

Precip looks to come to an end early in the day Thursday as
surface high pressure builds in. Behind the front, temperatures
will struggle to get out of the mid-70s, which is more in line
with a late September day than mid-July. However, the cooler
weather will be short-lived as surface high pressure quickly
pushes off to the east Thursday night and southerly flow returns
Friday, with the surface boundary pushing back north as a warm
front. Expect highs back in the 80s Friday with mid 80s to lower
90s for the weekend and into early next week. We`ll also
continue to see on and off storm chances as various bits of
shortwave energy push through and interact with the boundary.
Basically, we have a 20-40% chance of storms each day Friday
through next Tuesday, with evening and overnights currently
favored. However, still quite a bit of spread and lots of
details to work out between now and then. There will likely be
some occasional severe weather chances in there as well,
especially for flooding given potential repeated rounds, but
current machine learning algorithms only suggest about a 5%
chance any given day, likely owing to the model spread.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1028 PM CDT Mon Jul 14 2025

VFR conditions are expected to prevail throughout the forecast
period. Southerly winds will contain at 8-12 kts, with a few
gusts up to 20 kts possible at KOFK Tuesday afternoon. High
clouds will grow in coverage through the afternoon. Towards the
end of the forecast period (03-06Z), a thunderstorm complex is
expected to push into northeast NE and impact KOFK. A wind
shift to northeasterly is expected with the passage as well as
an approaching deck of clouds at FL040-060. Stronger wind gusts
will be possible, though confidence is low in timing and
coverage at this time.

&&

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

&&

$$

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






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