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Boise, Idaho 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Boise ID
National Weather Service Forecast for: Boise ID
Issued by: National Weather Service Boise, ID
Updated: 3:04 pm MDT Jul 24, 2025
 
Overnight

Overnight: Clear, with a low around 64. Calm wind.
Clear
Friday

Friday: Sunny and hot, with a high near 95. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Hot
Friday
Night
Friday Night: Partly cloudy, with a low around 64. West northwest wind 5 to 7 mph becoming calm  in the evening.
Partly Cloudy
Saturday

Saturday: Sunny and hot, with a high near 93. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Hot
Saturday
Night
Saturday Night: Partly cloudy, with a low around 63. West northwest wind 5 to 7 mph becoming calm  in the evening.
Partly Cloudy
Sunday

Sunday: Sunny and hot, with a high near 93.
Hot
Sunday
Night
Sunday Night: Mostly clear, with a low around 63.
Mostly Clear
Monday

Monday: Sunny and hot, with a high near 97.
Hot
Monday
Night
Monday Night: Partly cloudy, with a low around 64.
Partly Cloudy
Lo 64 °F Hi 95 °F Lo 64 °F Hi 93 °F Lo 63 °F Hi 93 °F Lo 63 °F Hi 97 °F Lo 64 °F

 

Overnight
 
Clear, with a low around 64. Calm wind.
Friday
 
Sunny and hot, with a high near 95. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Friday Night
 
Partly cloudy, with a low around 64. West northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
 
Sunny and hot, with a high near 93. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
 
Partly cloudy, with a low around 63. West northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
 
Sunny and hot, with a high near 93.
Sunday Night
 
Mostly clear, with a low around 63.
Monday
 
Sunny and hot, with a high near 97.
Monday Night
 
Partly cloudy, with a low around 64.
Tuesday
 
Mostly sunny and hot, with a high near 99.
Tuesday Night
 
Partly cloudy, with a low around 66.
Wednesday
 
Mostly sunny and hot, with a high near 98.
Wednesday Night
 
Mostly clear, with a low around 66.
Thursday
 
Sunny and hot, with a high near 97.

 

Forecast from NOAA-NWS for Boise ID.

Weather Forecast Discussion
466
FXUS65 KBOI 250235
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
835 PM MDT Thu Jul 24 2025

.DISCUSSION...Scattered showers and thunderstorms developed
along the NV border this afternoon and moved north this evening.
Thunderstorm-outflow winds 40 to 45 mph reached Twin Falls, and
30 mph gusts reached Jerome. Another northward surge occurred
in the remote part of western Owyhee County and also in southern
Malheur County. These were weakening at 8 PM MDT and should end
soon after sunset. The moisture source is an upper low off
California which is forecast to weaken and move inland Friday,
then weaken further in eastern Oregon Saturday, then dissipate
in northern Idaho Saturday night. The track of the weakening
low, however, remains favorable for more showers and isolated
afternoon thunderstorms Friday and Saturday, and on a larger
part of our CWA. Current forecast is on track. No update.

&&

.AVIATION...Mainly VFR with isolated showers and thunderstorms
along the ID/NV border dissipating through late evening.
Scattered showers and thunderstorms developing Friday PM across
SE Oregon into far SW Idaho and across the central ID mtns.
Gusts up to 50 kt near thunderstorms with areas of blowing
dust producing brief MVFR/IFR conditions. Surface winds:
variable less than 10 kt overnight, becoming SW-NW 5-15 kt by
Friday afternoon. Winds aloft at 10kft MSL: SW-W 5-15 kt.

KBOI...VFR. Surface winds: Mainly SE less than 10 kt overnight,
becoming NW 7-12 kt by late Friday morning.

Weekend Outlook...Mainly VFR, with isolated to scattered PM
showers and thunderstorms each day resulting in brief MVFR
conditions. Storms may produce variable gusts to 50 kt and
areas of blowing dust. Outside of storms, surface winds
generally W-NW 5-15 kt.

&&

.PREV DISCUSSION...
SHORT TERM...Tonight through Saturday night...An upper level
trough remains off the CA coast this afternoon with mid-level
moisture on satellite over northern NV and UT. Showers and
thunderstorms are developing over the higher terrain along the
NV border this afternoon. Storms will be capable of producing
outflow wind gusts up to 50 mph this afternoon and evening
along the NV border. Cumulus fields are more extensive than
anticipated over eastern OR and the Elkhorns, which may have
a few showers and thunderstorms this evening, but that is
currently not reflected in the forecast. The trough will move
slowly inland on Friday into central CA before moving NE and
weakening. Mid-level moisture moves northward on Friday, which
will bring isolated thunderstorms to much of the higher terrain
on Friday afternoon and again on Saturday afternoon. Main
threats from the showers and thunderstorms will be outflow
wind gusts up to 50 mph and areas of blowing dust reducing
visibilities. Temperature trends will be nearly steady
through the short term, with values 2 to 4 degrees below
normal.

LONG TERM...Sunday through Thursday...Models are in above-average
agreement, and there is high confidence in the overall pattern.
The details, however, will determine exactly where and when
convection is most likely. SW flow aloft will continue through
the entire long term period, and an upper level ridge to the
southeast will extend its influence into the area beginning
Monday. An upper level low off the coast of CA will slowly work
its way inland and then northward toward the PacNW, most likely
passing by to our west Tuesday or Wednesday. This will likely
bring a more active period of convection to our Oregon zones,
but the timing can`t be nailed down this far out.

Temperatures will start out a few degrees below normal Sunday, but
as the ridge makes itself known, readings will jump above normal
Monday and remain there through Thursday. Moisture (PW values) will
hover around normal, resulting in isolated convection most days,
with the majority in the higher terrain, as usual. Any storms will
have the typical gust potential for this time of year (40-50 mph
Sunday, then 50-60 mph Mon-Thu with higher temperatures). Otherwise,
winds will be relatively weak.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...None.
OR...None.

&&

$$

www.weather.gov/Boise

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DISCUSSION...LC
AVIATION.....ST
SHORT TERM...KA
LONG TERM....SP
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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