870
FXUS65 KBOI 050237
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
829 PM MDT WED JUN 4 2025
DISCUSSION
NO FORECAST UPDATES. STEADY WARMING THROUGH
MONDAY AND ONLY SLIGHTLY COOLER TUESDAY. MORE SIGNIFICANT
COOLING AFTER THAT. GENERALLY CLEAR TONIGHT THROUGH FRIDAY
THEN PARTLY CLOUDY SATURDAY THROUGH MONDAY AS MID AND HIGH
LEVEL MOISTURE GRADUALLY INCREASES IN THE GREAT BASIN. NO
IMPACTFUL WEATHER.
AVIATION
VFR. A LOW CHANCE OF RAIN SHOWERS OVER THE
BOISE MOUNTAINS THIS EVENING. SURFACE WINDS: N-NW 5-10 KT
WITH GUSTS TO 20 KT THIS EVENING, BECOMING VARIABLE LESS THAN
10 KT OVERNIGHT. WINDS ALOFT AT 10KFT MSL: NW-NE 10-20 KT.
KBOI...VFR. SURFACE WINDS: NW 5-10 KT THROUGH THE EVENING,
THEN VARIABLE LESS THAN 6 KT OVERNIGHT.
PREV DISCUSSION
SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...
AN UPPER LEVEL RIDGE OFF THE PACIFIC COAST AND A TROUGH TO OUR
EAST WILL KEEP THE FORECAST AREA IN NORTHWEST FLOW THROUGH
FRIDAY. A WEAK SHORTWAVE WILL BRING A SLIGHT CHANCE (AROUND 10%)
OF A SHOWER TO EASTERN FRINGES OF THE CENTRAL MOUNTAINS THURSDAY
AFTERNOON. OTHERWISE DRY CONDITIONS WILL PERSIST. A WARMING
TREND WILL CONTINUE HEADING INTO THE WEEKEND AS THE PATTERN
GRADUALLY SHIFTS EASTWARD AND THE OFFSHORE RIDGE MOVES INLAND
OVER THE PACIFIC NORTHWEST. WINDS WILL GENERALLY BE LIGHT WITH
TYPICAL AFTERNOON BREEZES.
LONG TERM...SATURDAY THROUGH WEDNESDAY...
A STRONG UPPER-LEVEL RIDGE WILL BUILD INTO THE NORTHWEST
REGION OVER THE WEEKEND, BRINGING CONSIDERABLY HOT DAYTIME
TEMPERATURES INTO THE 90S FOR MOST OF THE AREA. PEAK VALLEY
TEMPERATURES ARE EXPECTED TO CLIMB INTO THE UPPER 90S SUNDAY
AND MONDAY, WITH A SMALL CHANCE (5-10%) OF REACHING OR
EXCEEDING 100 DEG ON BOTH DAYS. AS THE RIDGE SLOWLY PUSHES OUT
EAST ON MONDAY, A WEAK TROUGH IS EXPECTED TO DIG INTO THE AREA
MONDAY AND TUESDAY. A SLIGHT COOLING TREND WILL BE EXPECTED FOR
TUESDAY AND WEDNESDAY, WITH PEAK VALLEY TEMPERATURES IN THE
LOWER 90S. GUIDANCE UNCERTAINTY REMAINS OVER THE MAGNITUDE AND
TIMING OF THE TROUGH'S ARRIVAL EARLY NEXT WEEK. SLIGHT CHANCE
(10-20%) OF AFTERNOON SHOWERS AND THUNDERSTORMS REMAINS FOR
HIGHER ELEVATIONS MONDAY TO WEDNESDAY.
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
DISCUSSION...LC
AVIATION.....SA
SHORT TERM...TL
LONG TERM....JY
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