Boulder City, Nevada 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

979
FXUS65 KVEF 252242
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
341 PM PDT Sat Jul 25 2026

.KEY MESSAGES...

* Dangerous temperatures will continue through Monday across the
  Mojave Desert. Hotter than normal temperatures will continue
  through next week.

* Convective activity will be limited to northwestern Arizona
  through next week.

&&

.DISCUSSION...through Friday.

High pressure maintains anomalously hot temperatures across the
southwestern United States through early next week. Temperatures
will be 5 to 10 degrees above normal for late July through Monday,
with daytime highs in the 110s and overnight lows in the upper 80s
to low 90s across most desert valleys. Numerous daily record high
temperatures and warm low temperature records are in jeopardy - see
the CLIMATE section below for details. Hot daytime temperatures and
warm overnight temperatures that offer little relief yield large
swaths of Major (Level 3 of 4) to Extreme (Level 4 of 4) Heat Risk
in the Mojave Desert. Temperatures back off a few degrees on Tuesday
and Wednesday as the ridge shifts east and heights aloft fall.
However, particularly dangerous heat returns Thursday through next
weekend as the ridge builds back to the west. Expect widespread
Major to Extreme HeatRisk across southern Nevada, southeastern
California, and northwestern Arizona as this occurs.

Building high pressure over the southwestern United States and low
pressure over the Pacific Northwest will lead to dry southwesterly
flow over the forecast area. This pattern combined with a lack of a
lifting mechanism besides daytime heating will inhibit convection
for most locations through next week. Northwestern Arizona may still
be able to tap into southerly moisture flow and there are low (10 to
20 percent) chances of afternoon thunderstorms over high terrain,
especially on Tuesday and Wednesday.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...South to
southwest winds with occasional gusts to 20 knots will continue into
early evening before becoming light overnight.  Similar wind trends
are expected Sunday, with breezy southwest winds developing by
Sunday afternoon after a brief period of light southeast to south-
southeast winds in the morning (150 to 170 degrees true). No
convection is expected in or near the Vegas Valley through Sunday,
although a few storms will continue along the southeast approaches
through early evening. VFR conditions will continue through Sunday,
with CIGs remaining AOA 15kft AGL. Temperatures will exceed 100
degrees through 06Z and again between 19Z and 06Z tomorrow, with a
high near 112F expected around 00Z.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...For much of the region,
south to southwest winds with occasional gusts to 20 knots are
expected through Sunday afternoon. At KDAG, westerly gusts to near
30 knots are expected this evening, followed by lighter winds late
tonight through Sunday afternoon. Gusty southerly winds are expected
at KBIH into early evening before turning northerly overnight.
Similar gusty southerly winds are expected in the Owens Valley
Sunday.  The southerly winds may also push smoke into the area from
the fires burning near Big Pine, reducing visibility at times.
Scattered convection will remain possible into this evening across
northwest Arizona. Gusty outflow winds, brief periods of heavy rain,
and CIGs falling below 10kft AGL are the main concerns. Elsewhere,
VFR conditions will prevail through Monday with bases remaining AOA
15kft AGL.

&&

.CLIMATE...Numerous climate locations have a forecast high
temperature and/or forecast warm low temperature within 3 degrees of
the daily record.

The table below shows the daily record maximum temperature and the
year the record was last set. An asterisk (*) denotes which records
are in jeopardy (within 3 degrees of the forecast).

MAX           SAT, JUL 25  SUN, JUL 26
              Record(Yr)   Record(Yr)

Las Vegas     115(2018)*   116(1943)
Bishop        107(2016)*   108(1975)
Needles       122(2018)    119(2023)
Daggett       115(1975)    114(2018)
Kingman       108(2018)*   108(2023)
Desert Rock   110(2018)    110(2018)
Death Valley  127(2018)    127(2018)

The table below shows the daily record warm minimum temperature and
the year the record was last set. An asterisk (*) denotes which
records are in jeopardy (within 3 degrees of the forecast).

WARM MIN      SUN, JUL 26  MON, JUL 27  TUE, JUL 28  WED, JUL 29
              Record(Yr)   Record(Yr)   Record(Yr)   Record (Yr)

Las Vegas     94(2024)*    90(2018)*    91(2018)*    94(2016)
Bishop        69(2022)     70(1951)     71(2004)     67(2006)
Needles       98(2018)     96(2018)     96(2018)     95(2023)
Daggett       85(2024)*    83(2016)*    83(2016)*    84(2016)*
Kingman       84(1914)*    81(1914)*    85(1914)     83(1905)
Desert Rock   82(2024)*    83(2024)*    84(2003)     88(1994)
Death Valley  101(1980)*   102(2006)    101(2018)    101(2016)

&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.

&&

$$

DISCUSSION...Meltzer
AVIATION...Planz

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