918
FXUS65 KBOI 111151
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
551 AM MDT THU JUN 11 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- CLEAR, WARMER, DRIER, AND MUCH LESS WINDY TODAY AND FRIDAY,
THEN TEMPERATURES HOLDING LEVEL SATURDAY AND SUNDAY.
- WARMER AGAIN STARTING MONDAY, BECOMING HOT MID-WEEK.
SHORT TERM /THROUGH SATURDAY NIGHT/
ISSUED 234 AM MDT THU JUN 11 2026
SUNNY, WARMER, DRIER, AND MUCH LESS WINDY TODAY, AS PACIFIC
HIGH PRESSURE ALOFT BUILDS INLAND AND YESTERDAY'S SHORT WAVE
TROUGH MOVES OUT ACROSS THE NORTHERN PLAINS. AFTER A COLD START
THIS MORNING, HIGH TEMPS TODAY SHOULD BE ABOUT 15 DEGREES WARMER
THAN YESTERDAY IN NORTHERN AREAS, AND ABOUT 8 DEGREES WARMER IN
SOUTHERN AREAS. THE WARMING TREND WILL CONTINUE FRIDAY RANGING
FROM 5 DEGREES IN THE NORTH TO 10 DEGREES IN THE SOUTH. THUS,
ADDED TOGETHER, FRIDAY SHOULD BE 20 DEGREES WARMER THAN
YESTERDAY JUST ABOUT EVERYWHERE, WITH CONTINUED CLEAR SKIES AND
LIGHT DIURNAL WINDS. ON SATURDAY A CANADIAN SHORT WAVE WILL MOVE
THROUGH MONTANA, CLOSE ENOUGH TO HALT THE WARMING TREND IN OUR
CWA AND GENERATE MODERATE NORTHWEST WINDS.
LONG TERM /SUNDAY THROUGH THURSDAY/
ISSUED 234 AM MDT THU JUN 11 2026
BY SUNDAY THE MONTANA SHORT WAVE TROUGH WILL BE GONE AND THE
WARMING TREND WILL CONTINUE, PEAKING WEDNESDAY AND THURSDAY
WHEN HIGH TEMPS WILL BE IN THE 80S IN THE MOUNTAINS TO MID 90S
IN THE LOWER VALLEYS, WITH A 15-20 PERCENT CHANCE OF REACHING
100 DEGREES SOUTH OF MOUNTAIN HOME. WEST/NORTHWEST FLOW ALOFT
SHOULD KEEP MONSOON MOISTURE WELL TO OUR SOUTH IN NEVADA AND
THE CALIFORNIA SIERRA NEVADA.
AVIATION /12Z THURSDAY THROUGH FRIDAY/
ISSUED 551 AM MDT THU JUN 11 2026
VFR. PATCHY IFR DUE TO FOG IN CENTRAL ID VALLEYS UNTIL 15Z,
OTHERWISE CLEAR. SURFACE WINDS:
LIGHT DIURNAL LESS THAN 10 KT. WINDS ALOFT AT 10 KFT MSL: NW
5-10 KT.
KBOI...VFR. CLEAR SKIES. VARIABLE WIND LESS THAN 8 KT.
WEEKEND OUTLOOK...VFR. GENERALLY CLEAR SKIES. NW SURFACE WIND
5-15 KT.
BOI WATCHES/WARNINGS/ADVISORIES
ID...NONE.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
AVIATION.....LC
SHORT TERM...LC
LONG TERM....LC
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