930
FXUS65 KBYZ 231910
AFDBYZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
110 PM MDT WED SEP 23 2026
KEY MESSAGES
- ISOLATED SHOWERS AND THUNDERSTORMS THIS AFTERNOON, MAINLY WEST
OF BILLINGS AND IN FAR EASTERN MONTANA.
- WARM AND DRY END OF THE WORK WEEK; 80S RETURN.
- UNSETTLED AND COOLER SUNDAY INTO EARLY NEXT WEEK.
DISCUSSION
REST OF TODAY THROUGH TUESDAY...
AS A SHORTWAVE TROUGH EXITS MONTANA TODAY, ISOLATED SHOWERS AND A
FEW WEAK THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON.
EXPECT THE CHANCE FOR PRECIPITATION TO EXIST MAINLY OVER THE
MOUNTAINS AND FOOTHILLS WEST OF BILLINGS. GUSTY WINDS AND BRIEF
HEAVY RAINFALL ARE THE PRIMARY CONCERNS WITH ANY STORMS INTO THIS
EVENING. OTHERWISE, THE REST OF THE FORECAST AREA WILL SEE
DECREASING CLOUD COVER WITH DRIER CONDITIONS AND TEMPERATURES IN
THE 70S TODAY.
WARMER AND DRIER CONDITIONS TAKE HOLD THURSDAY AND FRIDAY, WITH
HIGHS IN THE 70S TO LOW 80SF. FRIDAY LOOKS TO BE THE WARMEST OF
THE TWO DAYS. A LARGE SURFACE HIGH WILL INFLUENCE WINDS OVER FAR
EASTERN MONTANA TO END THE WEEK, WITH PERSISTENT SOUTH TO
SOUTHEAST FLOW. AS FOR SOUTH-CENTRAL AND SOUTHWESTERN MONTANA,
FLOW WILL BEGIN TO SHIFT TO THE SOUTHWEST ON FRIDAY, AHEAD OF A
COLD FRONT. WINDY CONDITIONS ARE CURRENTLY FORECAST FOR THE HIGH
COUNTRY, WITH GUSTS IN THE RANGE OF 30 TO 50 MPH. ACROSS THE
FOOTHILLS WEST OF BILLINGS GUSTS OF 20 TO 40 MPH ARE FORECAST,
WHILE THE REST OF THE AREA WILL SEE 15 TO 30 MPH GUSTS.
THE COLD FRONT IS ASSOCIATED WITH A DEEPENING UPPER LOW THAT IS
SET TO MOVE THROUGH ALBERTA THIS WEEKEND. ENSEMBLES DO DEPICT A
SHORTWAVE MOVING THROUGH THE REGION AHEAD OF THE PARENT TROUGH,
FRIDAY AFTERNOON. LITTLE TO IMPACTS ARE EXPECTED WITH THIS WAVE
THOUGH.
CONFIDENCE REMAINS HIGH THAT TEMPERATURES WILL DROP TO NEAR
NORMALS (UPPER 60S TO LOW 70SF) BEGINNING SATURDAY AND LASTING
INTO NEXT WEEK. UNCERTAINTY REMAINS HIGH WITH ANOTHER POTENTIAL
SYSTEM SUNDAY INTO MONDAY. THE LATEST MODEL TRENDS WITH THIS
SYSTEM SHOW BETTER CHANCES FOR PRECIPITATION OVER SOUTHEASTERN
MONTANA AND NORTHERN WYOMING. CONTINUE TO MONITOR THE FORECAST
GOING INTO THE WEEKEND.
MATOS
AVIATION
ISOLATED SHOWERS AND WEAK THUNDERSTORMS CAPABLE OF PRODUCING
BREEZY AND ERRATIC WINDS WILL LINGER OVER THE AREA THIS AFTERNOON
BEFORE COMING TO AN END THIS EVENING. AS THE PRECIPITATION COMES
TO AN END, EXPECT CLEAR SKIES TO DEVELOP. WITH THIS, PATCHY FOG IS
POSSIBLE OVER PORTIONS OF FAR EASTERN MONTANA, INCLUDING KMLS AND
KBHK, TONIGHT INTO EARLY THURSDAY MORNING. ANY FOG THAT DOES
DEVELOP SHOULD LIFT AROUND 15Z THURSDAY. THURSDAY IS EXPECTED TO
BE A DRY DAY AS VFR CONDITIONS PREVAIL. LA
PRELIMINARY POINT TEMP/POPS
THU FRI SAT SUN MON TUE WED
-----------------------------------------------------------
BIL 053/080 052/081 054/068 048/065 049/061 045/063 045/067
00/U 00/B 00/B 01/B 54/W 22/W 10/U
LVM 045/080 047/083 046/070 042/067 042/062 038/064 039/068
00/U 00/U 00/U 01/B 54/W 31/U 11/U
HDN 048/083 051/083 050/069 044/069 047/062 042/064 041/068
00/U 00/B 00/U 01/B 44/W 21/B 11/U
MLS 050/081 056/079 054/068 047/070 051/062 045/062 044/066
00/U 00/B 00/U 00/B 44/W 21/B 21/U
4BQ 050/079 055/077 054/069 048/073 052/063 045/062 044/067
00/U 00/B 00/U 11/B 55/W 21/B 11/U
BHK 047/081 050/075 051/071 044/070 048/063 041/061 040/065
10/U 01/N 00/U 01/B 75/T 32/W 12/W
SHR 045/078 048/079 050/070 043/070 046/060 040/060 038/066
10/U 00/B 00/U 01/B 36/W 42/W 11/U
BYZ WATCHES/WARNINGS/ADVISORIES
MT...NONE.
WY...NONE.
WEATHER.GOV/BILLINGS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page