396
FXUS65 KBYZ 081141
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
541 AM MDT Mon Jun 8 2026

.KEY MESSAGES...

- Mainly dry Today; conditions trend more unsettled through the
  remainder of the week with daily shower and thunderstorm
  chances. Chance for severe weather is low.

- Potential for high elevation snow at times with impacts to
  recreation.

&&

.UPDATE...
Chilly start to the day with 530am temps ranging from the mid 30s
to mid 40s most locations. Wilsall actually reached 29F. Satellite
imagery shows an increase in mid/high clouds over our west,
courtesy of a shortwave tracking thru southeast ID...but the air
mass is too dry to support showers and skies should become mostly
sunny thru the day. Look for highs in the 70s to near 80F. Low
level jet forming over eastern MT this evening will help to
trigger a few showers/t-storms along a warm front in northeast MT
overnight (this activity should be to our north). By late tonight
the next Pacific wave will begin to introduce showers to our
western mountains. An associated cold front arrives tomorrow
bringing a good chance of showers and a few weak t-storms across
the area. All indications are that the risk of severe weather on
Tuesday will be in the Dakotas, as west winds push all the way to
our eastern border by early afternoon. JKL

&&

.DISCUSSION...

Next 7 Days (Through Sunday)...

Mainly dry conditions will prevail over the area today as
shortwave ridging builds into the region. A few sprinkles or
isolated showers are possible over the far southeast in the
afternoon, though the chance is low (less than 15%). As a trough
pushes inland into the the Pac NW, a low level jet looks to set up
over the east tonight, with the potential for a few showers and
perhaps a thunderstorm, though the best chances are into northeast
MT.

As the upper trough pushes into the northern Rockies Tuesday,
unsettled conditions are expected to develop, continuing through
much of the week ahead. Occasional shortwaves dropping through the
region will bring daily chances for showers and thunderstorms,
greatest on Tuesday/Tuesday night (40-90% chance). Breezy west to
northwest winds could move across the area at times as well.
Temperatures may be cool enough for some light snow in the high
country, especially Tuesday night into Wednesday and the upcoming
weekend. This includes the Beartooth Hwy. Those with recreation
plans in the mountains should pay attention to the forecast. The
chance for strong to severe storms looks to remain low through the
week, with the better chance east of the area. Temperatures are
forecast to range from the 70s to near 80 degrees today and the
lower 70s to lower 80s Tuesday. Temperatures then drop into the
60s to middle 70s for the remainder of the week. STP

.AVIATION...

Issued 12Z. Dry conditions and widespread VFR anticipated over the
next 24hrs. A southeasterly low level jet will bring a period of
low level wind shear to eastern areas (including KMLS) after 02z
tonight. Some showers over the Beartooth-Absarokas late tonight
may bring occasional obscurations of the high elevations. Shower
activity increases across the region Tuesday. JKL


&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Tue     Wed     Thu     Fri     Sat     Sun
-------------------------------------------------------
BIL 077 055/076 050/069 047/074 049/076 049/070 047/073
    0/B 04/T    52/W    10/N    11/U    24/T    22/T
LVM 074 049/066 040/061 037/070 040/072 040/066 039/069
    0/B 19/T    94/T    10/N    01/U    35/T    33/T
HDN 078 053/079 049/070 045/074 046/075 046/070 044/072
    0/U 04/T    62/T    21/B    11/U    34/T    33/T
MLS 074 056/081 052/069 048/071 048/073 048/069 046/071
    0/U 11/B    62/W    31/N    11/U    12/W    22/W
4BQ 077 060/083 051/068 047/070 047/074 048/068 046/069
    0/B 12/T    73/W    21/U    01/U    33/W    33/T
BHK 074 054/084 049/067 044/068 045/070 044/066 044/068
    0/U 12/W    53/W    43/T    11/U    12/W    33/W
SHR 079 051/078 044/065 040/070 041/073 042/067 041/067
    0/U 04/T    77/T    21/U    01/U    35/T    44/T

&&

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

&&

$$
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