Coeur d'Alene, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

530
FXUS66 KOTX 132259
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
259 PM PST Tue Jan 13 2026

.KEY MESSAGES...

- Dry and stagnant pattern under strong ridge of high pressure
  by mid week into the weekend.

&&

.SYNOPSIS...
Strong high pressure will remain in place through the upcoming
weekend. Low clouds and fog is expected to expand into some of
the valleys Tuesday night into Wednesday, then become
established across much of the Inland Northwest by Thursday.

&&

.DISCUSSION...
Today through next Tuesday: High pressure will dominate the period
leading to stagnant conditions in the Inland Northwest. Strong
inversions will be efficient at trapping pollutants near the ground,
potentially leading to degraded air quality. These inversions are
leading to quite warm temperatures in the mountains today (40s and
50s above 4000`). A weak shortwave and cold front passage Wednesday
evening will usher in drier air and temporarily disrupt stagnant
conditions (especially the Okanogan Valley) as northerly transport
winds increase above 10 mph. A few sprinkles may come out of the
sky with areas covered in stratus, otherwise this passage will be
mostly dry. The ridge center will stay offshore through at least
Sunday, leading to continuing dry and stagnant conditions. Ensembles
signal the return of unsettled conditions around Tuesday with 75%
showing weak troughing off the WA coast. DB

&&

.AVIATION...
00Z TAFs: Areas of fog and low stratus will develop tonight
with light boundary layer winds and relatively moist conditions
with dewpoints in the 30s to low 40s. Confidence is low on the
exact timing but the best chances for fog are at KGEG-KMWH-KEAT
(40-70% chance; 20% higher than the HREF chances given the
anomalously high dewpoints). Confidence is low for KSFF-KCOE.
KPUW-KLWS will remain VFR with east boundary layer winds.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
There is also high confidence for fog and stratus to form into
Tuesday night. Low confidence on timing and coverage.

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

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        30  36  28  34  26  40 /   0   0   0   0   0   0
Coeur d`Alene  31  40  28  36  27  41 /   0   0   0   0   0   0
Pullman        34  46  30  43  28  42 /   0   0   0   0   0   0
Lewiston       34  48  32  37  31  43 /   0   0   0   0   0   0
Colville       32  37  28  36  25  42 /   0   0   0   0   0   0
Sandpoint      33  38  29  35  27  38 /   0   0   0   0   0   0
Kellogg        35  46  30  41  28  42 /   0   0   0   0   0   0
Moses Lake     30  37  29  38  27  42 /   0   0   0   0   0   0
Wenatchee      37  38  34  39  32  44 /   0   0   0   0   0   0
Omak           34  37  31  38  28  41 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...Air Stagnation Advisory until 10 AM PST Friday for Central
     Chelan County-Northeast Mountains-Okanogan Highlands-
     Okanogan Valley-Wenatchee Area-Western Chelan County-
     Western Okanogan County.
ID...Air Stagnation Advisory until 10 AM PST Friday for Central
     Panhandle Mountains-Lewis and Southern Nez Perce Counties-
     Lewiston Area-Northern Panhandle.

&&

$$