Coulee City, Washington Weather Conditions

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Current Conditions

  • 50°
  • Clear
  • Wind: Variable 7 mph
  • Humidity: 32%
  • Visibility: 10.0 miles
  • Dew Point: 21°
  • Pressure: 29.96 in. 0

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
48°
45°
36°
43°
46°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Mostly Cloudy
  • High: 70 °
  • Low: 39 °
  • Mostly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 64 °
  • Low: 43 °
  • Partly Cloudy
  • Monday
  • Chance of Rain
  • High: 70 °
  • Low: 46 °
  • Chance of Rain
  • Tuesday
  • Overcast
  • High: 61 °
  • Low: 39 °
  • Overcast
  • Wednesday
  • Mostly Cloudy
  • High: 61 °
  • Low: 37 °
  • Mostly Cloudy

Forecast for Coulee City, Washington

Updated: 8:00 PM PDT on April 18, 2014

  • Friday

    Clear. High of 63F. Breezy. Winds from the West at 15 to 25 mph with gusts to 30 mph.

  • Friday Night

    Partly cloudy in the evening, then overcast. Low of 36F. Winds from the WNW at 5 to 10 mph shifting to the NNE after midnight.

  • Saturday

    Overcast with rain showers. High of 70F. Windy. Winds from the SE at 5 to 25 mph with gusts to 35 mph.

  • Saturday Night

    Partly cloudy. Low of 39F. Winds from the SW at 5 to 20 mph.

  • Sunday

    Partly cloudy. High of 64F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Partly cloudy in the evening, then overcast. Low of 43F. Winds from the SSE at 5 to 10 mph shifting to the East after midnight.

  • Monday

    Overcast in the morning, then mostly cloudy with a chance of rain. High of 70F. Winds from the ENE at 5 to 10 mph shifting to the SE in the afternoon. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of rain. Low of 46F. Winds from the SSW at 5 to 10 mph. Chance of rain 50%.

  • Tuesday

    Overcast. High of 61F. Winds from the WSW at 5 to 15 mph.

  • Tuesday Night

    Overcast in the evening, then mostly cloudy. Low of 39F. Winds from the West at 5 to 15 mph.

  • Wednesday

    Overcast. High of 61F. Winds from the West at 5 to 15 mph.

  • Wednesday Night

    Partly cloudy. Low of 37F. Winds from the WNW at 5 to 15 mph.

  • Thursday

    Partly cloudy. High of 63F. Winds from the SSE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 45F. Winds from the SE at 5 to 10 mph.

  • Friday

    Overcast with a chance of rain. High of 64F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.

  • Friday Night

    Mostly cloudy with a chance of rain. Low of 45F. Winds from the SSE at 5 to 15 mph. Chance of rain 40%.

  • Saturday

    Mostly cloudy with a chance of rain. High of 61F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Mostly cloudy with a chance of rain. Low of 43F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm. High of 63F. Winds less than 5 mph. Chance of rain 30%.

  • Sunday Night

    Partly cloudy. Low of 43F. Winds less than 5 mph.

  • Monday

    Clear. High of 66F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 43F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 68F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 11:00 am PDT on April 18, 2014


... Precipitation records set across northern Idaho and northeast
Washington...

The precipitation at Plummer in the past 24 hours ending at 800 am
was 0.73 inches. This sets the record for the most precipitation
for this period. The previous record of 0.26 inches was set in 2000.
Records have been kept at this site since 1948.

The precipitation at boundary dam in the past 24 hours ending at 700
am was 0.72 inches. This sets the record for the most precipitation
for this period. The previous record of 0.62 inches was set in 1993.
Records have been kept at this site since 1965.

The precipitation at Mullan Pass in the past 24 hours
was 0.35 inches. This sets the record for the most precipitation
for this date. The previous record of 0.34 inches was set in 1954.
Records have been kept at this site since 1938.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Adrian, Soap Lake, WA

Updated: 9:19 PM PDT

Temperature: 41.5 °F Dew Point: 27 °F Humidity: 56% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: 3 miles ESE of Grand Coulee Dam, in Lincoln County, WA, Grand Coulee, WA

Updated: 9:18 PM PDT

Temperature: 47.3 °F Dew Point: 25 °F Humidity: 42% Wind: SW at 4.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
444 PM PDT Friday Apr 18 2014 


Synopsis... 
clearing skies, lighter winds, and cool temperatures will be the 
trend tonight. Another storm system will bring windy conditions 
Saturday afternoon and night with some showers across the north. 
Easter Sunday should be mild and mainly dry. After a warm and dry 
Monday, a cool and unsettled weather pattern will return Tuesday 
and linger through much of the week. 


&& 


Discussion... 
tonight into Saturday morning: a pool of instability remains 
across far northeastern Washington and the northern Idaho Panhandle this 
afternoon. Radar and satellite trends indicate at least one last 
cluster of showers crossing through boundary and Bonner counties 
then most shower activity will wane. This will lead to clearing 
skies through much of the night. As for winds, pressure gradients 
peaked around 12z and are slowly coming down. Afternoon mixing and 
cold air advection has led to breezy to gusty winds through much 
of the day but all trends will support the idea of decreasing 
winds through the evening hours...becoming around 10 mph or less 
overnight. Meanwhile, much drier air has settled into the region 
behind this morning's cold front. The combination of these 
ingredients will lead to another chilly night across the region 
with most sheltered northern valleys experiences well below freezing 
temperatures. 


The potential for near freezing temperatures will likely extend 
into the basin and toward the Moses Lake area. There is not 
enough confidence nor model support to issue freeze warnings based 
on the coverage being more localized and a deep freeze just 
experienced on the 14th. We also looked back into that event from 
the 14th and dewpoints were significantly drier than today. 
Nonetheless, we do anticipate temperatures to dip between 34 and 
31f within the Moses Lake, Royal City, George, Ephrata, and 
Beverly areas and those with sensitive plants within these 
locations should prepare for near freezing temperatures but 
not panic of a hard freeze. 


A few clouds will begin crossing the Cascades before 
sunrise...associated with the next frontal system but overall, 
dry conditions will prevail through Saturday morning. Any fog that 
develops in the northern valleys will burn off my late morning. 
/Sb 


Saturday afternoon through Monday...a cold front will move 
through the region Saturday, bringing scattered showers to the 
inland northwest. There is decent upper level forcing but moisture 
will be the limiting factor. Showers will mainly affect the higher 
elevations as there will be some dry air in the lower levels. 
There may be some occasional sprinkles for the basin into the 
Spokane area but the more favored areas will be the rising terrain 
north and east of the basin. Strong southwest flow aloft will add 
orographic ascent to the mix. Southerly flow will also bring 
warmer air into the forecast area. Daytime temperatures will warm 
into the 60s with low 70s for the warmer valleys. Gusty winds will 
accompany the front, increasing the mixing potential for the late 
afternoon/early evening period. Wind gusts of 25 to 35 mph will be 
common across the basin and Waterville Plateau, spreading into the 
Palouse and Spokane area. Considering the timing of the front 
during the most unstable time of day, there is the possibility of 
even higher wind gusts. For now, it looks like winds will remain 
below advisory criteria but it will be watched closely for the 
next forecast package. Diminishing winds overnight along with 
clearing skies will allow for good radiational cooling. The more 
sheltered northern valleys will likely dip below freezing but 
areas south of I-90 will probably stay above freezing as winds 
will remain elevated for much of the overnight period. 


A building ridge of high pressure will keep Sunday dry except for 
some lingering showers over the Idaho Panhandle early in the day. 
Temperatures will be near seasonal normals but not quite as warm 
as saturday's readings. Sunshine will be filtered by high clouds 
moving in from the west ahead of the next Pacific system that will 
start to affect the area Monday. Expect showers to spread to the 
Cascade crest late Monday morning. Easterly upslope flow will 
enhance lift into the east slopes for a greater chance of precip. 
As winds shift to the south during the day, warm frontal precip 
will spread across the western half of the forecast area Monday 
afternoon and evening. Strong warm air advection will bring 
temperatures above normal with most valley locations in the upper 
60s to low 70s. The Lewis-Clark Valley could see upper 70s and 
even 80 degrees in some locations. /Kelch 


Monday night through saturday: all eyes for the beginning of this 
period will be on the system moving from west to east across the 
region. The frontal system associated with the incoming trough 
looks to be a rather slow mover leading to an increased time frame of 
widespread precipitation. Throughout Monday night and into Tuesday 
will be the best shot of precip with wetting rains expected for 
most. As the trough continues to push inland on Tuesday, we expect 
the associated precip to move east as well with much of the basin 
expected to dry out by late Tuesday. Rain is still expected for 
far eastern Washington and the Panhandle through Tuesday night as the 
system slowly pushes into western Montana. The main question with 
this system and also where models tend to disagree is the amount 
of wrap around moisture. The GFS wraps moisture back into the 
northern Panhandle and far NE Washington whereas the Euro keeps it further 
north late Tuesday and into Wednesday. Current trend is to follow 
the GFS more as it has been more consistent over the past few runs 
but this may have to be better refined as models come into better 
agreement. 


The next factor to monitor will be the snow levels. As the trough 
center moves overhead, an abundance of associated cold air will 
enter brining 850 temps down below zero for portions of our 
forecast area Tuesday night into Wednesday morning. What this 
means is a chance for both high and Lower Mountain snow with some 
higher valleys even having a shot for some snowfall. Any valley 
snow will likely be in the Cascades and northern Washington. Impacts for 
the lower areas will be minimal as none of the snow is anticipated 
to stick. Higher areas will see a good shot of accumulating snow. 
Snow levels rise back to more seasonal levels come daytime 
Wednesday leading to valley rain and higher mountain snow. 


Winds in the Tuesday and Wednesday time frame look to remain 
breezy due to a tightened surface pressure gradient. Currently no 
major impacts are expected, but with the cooler daytime temps, the 
breeze will make it feel quite cool. Temperatures for the middle 
part of the week will remain well below normal with daytime highs 
staying in the 50s for most valley locations. Also the sun will 
likely be hard to come by as clouds will be prominent with the 
system. 


Wednesday night and early Thursday looks to feature a brief break 
period from the widespread rain as weak ridging builds between 
the exiting and next incoming system. The mentioned next system 
looks to reach the Cascades Thursday evening before spilling over 
on Friday and into the weekend. Detail will have to wait for this 
system as models need to come into better agreement. Overall the 
period looks to be rather active with widespread rain expected. 
/Fliehman 


&& 


Aviation... 
00z tafs: winds will weaken this evening and the cloud cover 
will decrease as well over the aviation area. A second robust cold 
front will move through the aviation area Saturday allowing 
clouds to invade the sky from the south and west which will 
thicken and lower with time along with some shower activity. 
The most significant impact of this front passage will be another 
windy interval, primarily Saturday afternoon and evening. /Pelatti 


&& 


Preliminary point temps/pops... 
Spokane 33 63 35 59 40 67 / 0 10 10 0 10 10 
Coeur D'Alene 31 62 36 58 39 67 / 10 10 30 10 10 10 
Pullman 33 65 35 58 41 68 / 0 10 20 0 0 10 
Lewiston 36 71 41 65 45 74 / 0 10 10 0 0 10 
Colville 31 66 32 65 36 70 / 10 20 20 10 10 10 
Sandpoint 28 61 36 58 36 64 / 10 10 30 10 10 10 
Kellogg 31 62 35 57 37 66 / 10 10 30 10 10 10 
Moses Lake 32 68 38 66 43 72 / 0 10 10 0 0 10 
Wenatchee 37 64 42 66 47 68 / 0 20 10 10 10 10 
Omak 29 63 35 65 40 67 / 0 20 10 10 10 10 


&& 


Otx watches/warnings/advisories... 
Idaho...none. 
Washington...none. 
&& 


$$ 








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