Coulee City, Washington Weather Conditions

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Current Conditions

  • 39°
  • Clear
  • Wind: NE 5 mph
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 36°
  • Pressure: 30.25 in. 0
  • Heat Index: 36

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Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Mostly Cloudy
Mostly Cloudy
40°
48°
58°
65°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Partly Cloudy
  • High: 68 °
  • Low: 43 °
  • Partly Cloudy
  • Monday
  • Clear
  • High: 69 °
  • Low: 46 °
  • Clear
  • Tuesday
  • Partly Cloudy
  • High: 56 °
  • Low: 36 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 58 °
  • Low: 35 °
  • Clear
  • Thursday
  • Clear
  • High: 60 °
  • Low: 36 °
  • Clear

Forecast for Coulee City, Washington

Updated: 5:19 AM PDT on January 29, 2015

  • Sunday

    Partly cloudy. High 68F. Winds SSW at 10 to 15 mph.

  • Sunday Night

    Partly cloudy. Low 43F. Winds WNW at 5 to 10 mph.

  • Monday

    Mostly sunny skies. High 69F. Winds S at 10 to 15 mph.

  • Monday Night

    Partly cloudy. Low 46F. Winds SSW at 10 to 15 mph.

  • Tuesday

    Partly cloudy and windy. High 56F. Winds WSW at 20 to 30 mph.

  • Tuesday Night

    Partly cloudy in the evening with more clouds for later at night. Low 36F. Winds WSW at 10 to 20 mph.

  • Wednesday

    A few passing clouds, otherwise generally sunny. High 58F. Winds W at 10 to 20 mph.

  • Wednesday Night

    A mostly clear sky. Low around 35F. Winds WNW at 10 to 15 mph.

  • Thursday

    Except for a few afternoon clouds, mainly sunny. High around 60F. Winds W at 10 to 15 mph.

  • Thursday Night

    Mostly clear skies. Low 36F. Winds W at 5 to 10 mph.

  • Friday

    Partly cloudy. High around 60F. Winds SSW at 10 to 15 mph.

  • Friday Night

    Clear to partly cloudy. Low 38F. Winds WSW at 5 to 10 mph.

  • Saturday

    Partly cloudy skies. High around 60F. Winds WSW at 10 to 15 mph.

  • Saturday Night

    A few clouds. Low 38F. Winds WSW at 5 to 10 mph.

  • Sunday

    Partly cloudy. High 58F. Winds SW at 10 to 15 mph.

  • Sunday Night

    A few clouds from time to time. Low around 35F. Winds WSW at 5 to 10 mph.

  • Monday

    Partly to mostly cloudy. High 58F. Winds SW at 10 to 15 mph.

  • Monday Night

    A few clouds. Low 37F. Winds WSW at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High around 60F. Winds SW at 10 to 15 mph.

  • Tuesday Night

    Mostly cloudy. Low around 40F. Winds WSW at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High 61F. Winds WSW at 10 to 20 mph.

  • Wednesday Night

    Mostly cloudy skies. Low 42F. Winds WSW at 10 to 15 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 1:17 am PDT on March 29, 2015


The precipitation at Mullan Pass for the 24 hours ending at 1 am PDT
on March 29 was 0.76 inches. This sets the record for the most
precipitation for this date. The previous record of 0.54 inches was
set in 2014. 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: 6:39 AM PDT

Temperature: 38.8 °F Dew Point: 39 °F Humidity: 99% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: APRSWXNET Ephrata WA US, Ephrata, WA

Updated: 6:00 AM PDT

Temperature: 38 °F Dew Point: 35 °F Humidity: 90% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Ephrata Mike, Ephrata, WA

Updated: 6:35 AM PDT

Temperature: 39.5 °F Dew Point: 37 °F Humidity: 90% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

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

Updated: 6:30 AM PDT

Temperature: 41.2 °F Dew Point: 34 °F Humidity: 77% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
507 am PDT sun Mar 29 2015 


Synopsis... 
the storm track will retreat north into Canada today and Monday 
producing mild weather for the inland northwest. A vigorous 
Spring storm system will bring another chance for showers and 
strong winds to our region on Tuesday. Wind gusts exceeding 40 mph 
will be possible Tuesday afternoon and evening. Wednesday through 
next weekend looks to be showery with temperatures near normal. 




&& 


Discussion... 


..strong cold front to deliver windy conditions across the inland 
northwest Tuesday afternoon... 


Today through monday: a flat upper level ridge at 500mb will 
reside over the Pacific northwest today into Monday. Vancouver 
Island and the southern coast of British Columbia will experience 
periods of rain during the next couple of days as a plume of 
subtropical moisture is directed into southwestern Canada. Small 
chances for light rain will extend as far south as the mountains 
of far north central and northeast Washington today and tonight, 
but the majority of our forecast area should be dry under bands of 
mid and high level clouds. There will be much less wind today and 
Monday with the typical afternoon increase in southwest winds, 
generally in the 10 to 15 mph range. /Gkoch 


Tuesday: a vigorous cold front will seep across the region 
Tuesday morning with the upper level trough of lower pressure 
moving in for the afternoon. Models are in good agreement with a 
deepening surface low scooting across southern British Columbia into southern 
Alberta through the day on Tuesday. Models all show the surface 
low bottoming out at around 992 mbs along the eastern Divide in 
southern Alberta by the afternoon hours. This will set up a 
strong surface gradient, which will coincide with a favorable 
time of day for mixing potential. The surface gradient looks to be 
a little bit stronger compared to this past saturday's wind event 
and there were spotty locations with sustained wind speeds of 
30-35 mph. This front will have the potential for similar wind 
speeds, but on a more widespread basis. This will include anywhere 
from the Wenatchee area, across the basin and over into the 
exposed areas of the southern to central Idaho Panhandle. Winds up at 
850 mbs look to peak at around 35-40 kts, which would translate to 
a gust potential somewhere in the range of up to 40-45 mph. There 
is a good possibility that a Wind Advisory will be needed for 
Tuesday afternoon, but is still a bit early for a highlight at 
this time this far out in the forecast period. 


A 500 mb cold pool aloft will also result in the atmosphere 
destabilizing through the afternoon. Showers will develop out 
ahead of the cold front through the morning on Tuesday with more 
showers likely developing in the conditionally unstable atmosphere 
through the afternoon hours. Best chances for showers are expected 
across the eastern half of the forecast area. There will also be a 
chance for thunderstorms in the afternoon across the Okanogan 
Highlands over into the northern Panhandle. 


Tuesday night through sunday: a cold upper level trough of lower 
pressure will hang around through Thursday. The cold front on 
Tuesday will usher in colder temperatures with temperatures 
closer to or slightly below normal. The cold upper level trough 
will result in afternoon showers with the potential for some soft 
hail or graupel. Shortwave ridging of higher pressure moves in 
Thursday night, but another upper level trough of lower pressure 
looks to drop down into the region for Friday through the 
weekend. This will keep temperatures slightly below normal with 
more convective showers expected, especially during the afternoon. 
/Svh 


&& 


Aviation... 
12z tafs: a couple of weak upper level disturbances will over-top 
our flat upper level ridge today and tonight. Bands of mid and 
high level clouds with ceilings at or above 12 thousand feet are 
expected. Some light rain/high elevation snow will be possible 
over the mountains along the Canadian border, but is not expected 
to impact airports in the region. /Gkoch 




&& 


Preliminary point temps/pops... 
Spokane 59 41 63 42 54 33 / 10 10 0 10 60 20 
Coeur D'Alene 58 39 64 40 53 32 / 10 10 0 10 70 40 
Pullman 60 40 65 41 51 35 / 0 0 0 20 60 20 
Lewiston 66 43 70 46 56 37 / 0 0 0 20 50 20 
Colville 60 41 65 40 56 31 / 10 10 0 10 70 30 
Sandpoint 56 38 59 38 51 33 / 10 10 0 10 80 50 
Kellogg 54 39 63 40 47 33 / 10 10 0 30 80 50 
Moses Lake 67 40 69 43 59 34 / 10 0 0 0 20 10 
Wenatchee 65 44 68 44 58 38 / 10 0 0 10 20 10 
Omak 64 39 66 40 60 32 / 10 10 0 10 40 10 


&& 


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


$$ 



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