Lewiston, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

243
FXUS66 KOTX 182258
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
358 PM PDT Fri Apr 18 2025

.KEY MESSAGES...

- No significant weather expected over the next seven days.

&&

.SYNOPSIS...
Above average temperatures have returned today with highs in
the 60s. Saturday through Monday will see seasonable
temperatures along with chances for showers. Warm and dry
conditions are expected to return toward the middle of next
week.

&&

.DISCUSSION...

Today and tomorrow: Today will be dry and mild ahead of a cold front
passage expected tonight/tomorrow. Temperatures will top out in the
upper 50s to very low 70s. With PWATs ahead of the front around 150-
200% of normal/forcing from the front and jet streak positioned in
SE BC and AB, expecting some light showers to pass through in the
morning/early afternoon. Rain amounts will largely be below 0.10"
tomorrow. Behind the front passage tomorrow afternoon, winds will be
breezy especially through the Cascade gaps with wind gusts up to 30
mph.

Sunday and Monday: With west flow and another trough passage from
the north Sunday and Monday, shower chances return mostly to the
mountains which could put a damper on weekend activities at times.
Similar to Saturday, expecting breezy west winds with gusts up to 25
mph again Sunday and Monday.

Tuesday through Thursday will be much drier and mild, but with
PWATs 50-80% of normal, it will be quite dry with cool overnight
temperatures so frost remains a threat for sensitive plants. Chances
for precipitation increase Friday as the ensemble clusters are in
generally good agreement of a trough off the Pacific coast. Details
for rain amounts are muddy at this point but there is a 15-30%
chance of 0.10"+ rain for central WA, 30-60% chance for eastern WA,
and a 40-70% chance for north ID from Friday to Saturday. /DB

&&

.AVIATION...
00Z TAFS: Expect periods of mid and high level cloudiness
through Friday night. Slight chances for showers developing
around 9-14z with the best chances (30%) for KGEG-KSFF-KCOE.
Winds will become breezy and west after the front passage
tomorrow morning.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
in VFR conditions through 00Z Sunday.

-----------------------
Confidence descriptors:
Low - Less than a 30 percent chance
Moderate - 30 to 70 percent chance
High - Greater than a 70 percent chance

&&

.Preliminary Point Temps/PoPs...
Spokane        43  64  39  57  37  57 /   0  30   0  10  20  20
Coeur d`Alene  39  60  37  55  35  54 /   0  30  10  20  40  50
Pullman        38  58  38  53  36  52 /   0  20   0  10  30  30
Lewiston       42  65  43  62  42  59 /   0  30   0   0  20  20
Colville       39  64  37  57  32  57 /  30  40  20  20  40  30
Sandpoint      38  58  39  54  36  52 /   0  30  40  50  60  70
Kellogg        40  54  39  51  38  48 /   0  40  10  40  50  80
Moses Lake     45  71  41  64  37  63 /  10  30   0   0   0   0
Wenatchee      50  68  44  61  39  60 /  20  10   0   0   0   0
Omak           45  70  39  63  35  63 /  30  20   0   0  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...None.
ID...None.

&&

$$