Sheridan, Wyoming 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

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FXUS65 KBYZ 120036
AFDBYZ

Area Forecast Discussion...Updated
National Weather Service Billings MT
636 PM MDT Fri Apr 11 2025

.KEY MESSAGES...

- A cold front moving through this evening will bring a chance
  (25-45%) for precipitation.

- Cooler and active weather for the weekend, with a 70-90% chance
  of precipitation. Rain/snow for lower elevations, snow in the
  mountains.

- Strong winds Sunday with a greater than 50% chance of getting a
  gust over 40 mph across the region.

- Warmer and drier conditions return next week.

&&

.UPDATE...

Cold front is currently moving southward along an Ekalaka to Wyola
to Absarokee line. This is a bit faster than model guidance due to
surface low over Big Horn county tracking more north/south than
east/west this afternoon. Radar is starting to show a few light
returns over north central zones, mainly along the Musselshell
river valley. Expect more shower activity to develop tonight as
the cooler air and north/northeast winds deepen up, mainly west of
an Ingomar to Billings to Nye line. Less than a tenth of an inch
expected with precipitation overnight. More persistent
precipitation builds in for Saturday afternoon and evening.
NBM Probabilities for over a quarter of an inch of precipitation
remain over 50% for all but the far southeast portion of the
forecast area through the weekend. Probabilities for more than
half an inch are around 40 percent in the Billings/Yellowstone
county vicinity as well as Wheatland and Fallon counties.
Impactful snowfall will hold above 7000 feet for the most part
with this system with the highest peaks of the Beartooth/Absaroka
looking at 6 to 12 inches. Updated most forecast ingredients for
the latest model trends through tomorrow. Chambers

&&

.DISCUSSION...

The rest of today through Sunday...

A cold front beginning to move through from the northwest late
this afternoon/early this evening will bring a low (25-45%)
chance of precipitation west of Rosebud county this evening and
along and north of I-94 overnight. Over the northwest, a few
rumbles of thunder are possible through the evening. This first
round of precip is expected to remain fairly light, with the best
chance (45%) for more than 0.1" of precip over northern Wheatland
and Golden Valley counties.

As a trough enters the region, Saturday will see more widespread
precipitation (70-90% chance), beginning in the northwest, and
spreading south and east through the day. Currently, there is a
50-70% chance of at least 0.25" of precip for all but the
southeastern corner of the region, where there is a 20-40% chance.
Thunderstorms are possible, especially in the afternoon and
evening, and the Storm Prediction Center currently has a level 1
of 5 for severe storms over the southeastern portion of the
region, with the main threat being strong winds near 60 mph and
small hail.

For Sunday, there is still some uncertainty in the extent of a
third round of precip. As the trough exits the region, a low will
drop south. However, models disagree on how far south, with the
southernmost track leading to a better chance for precip and the
northernmost track leading to a lower chance. With the cooler
temperatures, lowere elevations may see a rain/snow mix.
Currently, the NBM has a 20-40% chance of precip for Sunday. The
bigger concern for Sunday will be strong winds, with much of the
forecast area having a more than 50% chance of gusts of at least
40 mph, up to a 90% chance in Sheridan county and along the Dakota
border.

Temperatures will become cooler over the weekend, with highs
Saturday ranging from upper 50s over the west to upper 60s over
the east. By Sunday, highs will be in the 40s to low 50s. Archer


Monday through Friday...

Ridging is expected to build over our region to start the next
work week leading to mostly seasonally mild temps. There is hint
of a breakdown, or at least flattening, of the ridge as some
energy works across southern Canada at midweek. Models currently
differ in timing and influence on our particular CWA. Overall cluster
analysis suggest about a 40-50% chance of a brief somewhat cooler
and wet regime around midweek, but nothing with significant
impacts. Temperatures will be in the 60s to low 70s most days,
with winds fairly light. Overall, should be a week of typical
pleasant spring weather. BT

&&

.AVIATION...


VFR conditions will prevail through this evening...but look for
increasing clouds and possible mountain top obscurations by
tonight. A weak frontal passage will occur this evening, shifting
winds to the north/northwest and bringing a small chance of rain
showers...mainly from KLVM-KBIL-KMLS and routes northward. There
is a 20% chance of MVFR conditions developing in our western
forecast area after 12z Saturday, including KLVM and K1KM. Look
for a more robust band of precipitation/reduced flight conditions
shifting west to east across our area Saturday. With this,
embedded thunderstorms creating gusty and erratic winds are
possible (10 to 20 percent chance). BT/Arends
&&

.PRELIMINARY POINT TEMP/POPS...

    Sat     Sun     Mon     Tue     Wed     Thu     Fri
-----------------------------------------------------------
BIL 048/064 037/051 032/058 036/073 043/064 038/063 038/071
    29/T    72/W    00/U    00/U    12/W    42/W    10/U
LVM 045/057 032/048 027/057 035/069 040/062 036/061 038/069
    49/T    63/J    10/U    00/U    12/W    32/W    11/U
HDN 046/068 036/051 030/058 032/074 041/064 036/061 035/070
    19/T    94/W    10/U    00/U    12/W    43/W    11/U
MLS 046/067 037/048 031/055 031/071 041/061 037/059 036/067
    26/T    75/W    10/U    00/U    11/B    32/W    00/U
4BQ 048/070 039/049 032/052 032/070 042/064 037/057 036/066
    03/T    73/W    10/U    00/U    01/B    32/W    10/U
BHK 043/065 035/048 027/052 027/068 037/060 032/055 030/061
    13/T    95/W    21/B    00/U    01/B    32/W    10/U
SHR 043/070 032/048 027/054 029/071 038/064 033/057 034/067
    15/T    73/J    00/U    00/U    12/W    43/W    11/U

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...None.
WY...None.

&&

$$
weather.gov/billings