Chadron, Nebraska 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

884
FXUS65 KCYS 192349
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
549 PM MDT Mon Oct 19 2026

.KEY MESSAGES...

- Dry conditions and above average temperatures are expected to
  continue through at least mid-week.

- The next chance for precipitation and temperatures closer to
  seasonal averages will be late week, Friday, into next
  weekend.

&&

.SHORT TERM /THROUGH TUESDAY NIGHT/...
Issued at 131 PM MDT Mon Oct 19 2026

A couple features evident on mid-level water vapor imagery that will
play somewhat a role on our weather in the short term period. The
first is a modest shortwave sliding across Kansas which aligns well
with upper level pattern on the deterministic models. This will not
bring an increase in precipitation chances; however, will increase
our low-level moisture and cloud cover ever so slightly. This added
cloud cover shows up nicely on VIS satellite imagery traversing
across our western forecast zones. These clouds may play a role on
our afternoon highs, keeping them a bit cooler than the forecast.
With that being said, expect highs to climb into the the low to mid
60s while lows dip into the low to mid 40s. With the increase in low-
level moisture, this will dampen, no pun, any fire weather concerns
that we may see this afternoon with min RH values only bottoming out
in the mid 20s to near 30 percent. By this evening, as the shortwave
ejects off to the east, guidance shows skies becoming clear across
the CWA and remaining so into the overnight hours. Winds will remain
generally light, 10 mph or less, with a few gusts that may top out
near 20-25 mph primarily in the Rawlins/Laramie/Cheyenne areas.
Heading into Tuesday, a shortwave to our southwest that is also
prevalent on water vapor imagery, will slide into and across the
Central Rockies. This will bring increased chances of precipitation
as hi-res model indicate; however, chances will remain slim as PoPs
should be generally less than 15 percent. Current forecast highs are
a tad warmer then today and range from the low to mid 60s west of I-
25 and upper 60s to low 70s east of the corridor with lows only
tanking into the low to mid 40s. Taking a final look at winds, they
look rather light across the CWA with speeds generally less than 10
mph once again.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
Issued at 131 PM MDT Mon Oct 19 2026

Wednesday...Westerly flow aloft continues and with dry low and mid
levels, no precipitation is expected.

Thursday...Moist south southwest flow aloft develops in advance of
the upper low over Nevada, with deeper moisture and a weak shortwave
trough aloft moving across our western counties, producing scattered
showers and a few thunderstorms south of a line from Rawlins, to
Wheatland to Cheyenne.

Friday...As the main trough aloft moves across western Wyoming, a
cold front will lie north to south across our counties, helping to
produce scattered showers mainly west of I-25 in the afternoon, and
spreading eastward in the evening.

Saturday...The primary trough aloft moves overhead early in the day,
and orographic lift will likely produce scattered showers in the
afternoon from Douglas to Laramie, and in the evening south of a
Rawlins to Scottsbluff line.

Sunday/Monday...Drier conditions return under northwest flow aloft
and as the low and mid levels dry out somewhat. 700 mb temperatures
near 3 Celsius will yield high temperatures in the mid 50s to lower
60s.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 548 PM MDT Mon Oct 19 2026

VFR conditions expected for the forecast period. Winds will be
generally light and out of the south overnight. This will last
into Tuesday in Nebraska, but LAR and CYS may flip to northerly
during the day. LAR and CYS will also have a slim chance for a
few showers late Tuesday afternoon in the area. PROB30 groups
have been introduced.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...None.
NE...None.

&&

$$

SHORT TERM...RZ
LONG TERM...RUBIN
AVIATION...MN