Lewiston, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

484
FXUS66 KOTX 022259
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
259 PM PST Mon Feb 2 2026

.KEY MESSAGES...

- Dry and mild Tuesday through Friday.

- Wetter weekend expected with incoming front late Saturday

&&

.SYNOPSIS...
Tuesday will see return of upper level ridge over the Pacific
Northwest. The forecast then trends drier again. Temperatures
will remain mild and above normal. Cold front over weekend will
bring precip and breezy winds.

&&

.DISCUSSION...
Tonight: A shortwave will continue to push through Eastern
Washington and North Idaho during the evening. Main concern will
be light rain or drizzle. Overnight lows will dip into the
upper 20s and low 30s. Early morning commutes could be impacted
with icy patches as residual moisture freezes. Fog will again be
concern with a saturated boundary layer and the cooling
temperatures.

Tuesday through Friday: A high pressure center will slowly move
through Northern California. It will support another round of
ridging over the Pacific Northwest. Lowlands will be under
stratus and fog are expected to continue with the stable
environment. The higher elevations will have a better chance of
getting sunshine. Temperatures will be mild with highs in the
upper 40s and 50s and lows in the upper 20s and 30s.

Saturday and Sunday: By the weekend, models are breaking down
the ridge and swinging a cold front through region. Current runs
are showing a decent plume of moisture associated with front. It
will be a mountain snow, valley rain event as the front does not
have good cold air advection. Snow levels are expected to remain
around 4000ft. Frontal passage on Sunday is hinting at breezy
winds with afternoon gusts near 30 mph possible. Highs will be
in the 40s. Lows will continue to be in the upper 20s and 30s.
/JDC

&&

.AVIATION...
00Z TAFS: Mid level continues to filter through the region
behind the earlier weak wave. VFR condtions expected for the
GEG/SFF/COE/PUW/LWS/MWH. Brief periods of MVFR conditions will
continue through MVFR with light precip bringing lower vis and
ceilings. There is low confidence on these impacting TAF sites.
Ceilings and visibility are expected to degrade again overnight
into Tuesday morning. The boundary layer is expected to remain
saturated and cooler temps are leading to another round of IFR
vis/cig for EAT. IFR cig is expected for GEG/SFF/COE/MWH.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Moderate
confidence for IFR conditions for Tuesday morning.

-----------------------

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

For additional probabilistic information for NWS Spokane
airports,please refer to the Aviation Dashboard on our
webpage: https:/www.weather.gov/otx/avndashboard

&&

.Preliminary Point Temps/PoPs...
Spokane        34  47  34  50  33  51 /  20   0   0   0   0   0
Coeur d`Alene  35  47  35  50  33  51 /  30   0   0   0   0   0
Pullman        37  52  37  53  35  54 /  20   0   0   0   0   0
Lewiston       40  56  38  57  36  55 /  10   0   0   0   0   0
Colville       33  44  33  48  33  50 /  20   0   0   0   0   0
Sandpoint      35  43  35  47  33  47 /  40   0   0   0   0   0
Kellogg        39  48  38  53  37  56 /  40   0   0   0   0   0
Moses Lake     34  49  33  50  33  52 /   0   0   0   0   0   0
Wenatchee      35  44  36  48  35  49 /  10   0   0   0   0   0
Omak           34  44  37  47  35  48 /  10   0   0   0   0   0

&&

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

&&

$$