Coulee City, Washington Weather Conditions

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Current Conditions

  • 48°
  • Clear
  • Wind: NNE 8 mph
  • Humidity: 77%
  • Visibility: 10.0 miles
  • Dew Point: 41°
  • Pressure: 30.09 in. -

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Next 12 Hours

11  am
2  pm
5  pm
8  pm
11  pm
Partly Cloudy
Partly Cloudy
Chance of Rain
Chance of Rain
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Rain
  • High: 57 °
  • Low: 43 °
  • Rain
  • Saturday
  • Chance of Rain
  • High: 59 °
  • Low: 43 °
  • Chance of Rain
  • Sunday
  • Partly Cloudy
  • High: 55 °
  • Low: 37 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 52 °
  • Low: 39 °
  • Partly Cloudy
  • Tuesday
  • Chance of Rain
  • High: 55 °
  • Low: 45 °
  • Chance of Rain

Forecast for Coulee City, Washington

Updated: 8:00 AM PDT on October 24, 2014

  • Friday

    Partly cloudy with rain in the afternoon. High of 57F. Winds less than 5 mph. Chance of rain 60%.

  • Friday Night

    Overcast with rain, then a chance of rain after midnight. Fog overnight. Low of 43F. Winds from the North at 5 to 15 mph. Chance of rain 80%.

  • Saturday

    Overcast with a chance of rain. High of 59F. Breezy. Winds from the NNE at 10 to 20 mph with gusts to 30 mph shifting to the SSE in the afternoon. Chance of rain 30%.

  • Saturday Night

    Overcast with a chance of rain in the evening, then partly cloudy with a chance of rain. Low of 43F. Breezy. Winds from the SW at 15 to 20 mph with gusts to 30 mph. Chance of rain 30%.

  • Sunday

    Partly cloudy. High of 55F. Breezy. Winds from the WSW at 15 to 20 mph with gusts to 30 mph.

  • Sunday Night

    Partly cloudy in the evening, then clear. Low of 37F. Winds from the West at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 52F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy with a chance of rain after midnight. Low of 39F. Winds less than 5 mph.

  • Tuesday

    Overcast with a chance of rain in the morning, then mostly cloudy. High of 55F. Winds from the SSE at 5 to 15 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 45F. Winds from the South at 5 to 15 mph.

  • Wednesday

    Clear. High of 61F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Wednesday Night

    Partly cloudy with a chance of rain. Low of 39F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Thursday

    Partly cloudy with a chance of rain. High of 57F. Winds from the South at 10 to 15 mph. Chance of rain 40%.

  • Thursday Night

    Partly cloudy. Low of 39F. Winds from the SE at 5 to 10 mph.

  • Friday

    Overcast with a chance of rain. High of 55F. Winds from the North at 5 to 10 mph shifting to the West in the afternoon. Chance of rain 60%.

  • Friday Night

    Partly cloudy. Low of 39F. Winds less than 5 mph.

  • Saturday

    Mostly cloudy with a chance of rain. High of 55F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm. Low of 41F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Partly cloudy. High of 55F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 39F. Winds less than 5 mph.

  • Monday

    Clear. High of 54F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 39F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Adrian, Soap Lake, WA

Updated: 11:43 AM PDT

Temperature: 50.9 °F Dew Point: 45 °F Humidity: 81% Wind: NNE at 2.5 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: MesoWest Soap Lake WA US WA DOT, Soap Lake, WA

Updated: 10:15 AM PDT

Temperature: 47 °F Dew Point: 42 °F Humidity: 83% Wind: NE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: MesoWest Coulee Dam West WA US WA DOT, Electric City, WA

Updated: 10:10 AM PDT

Temperature: 44 °F Dew Point: 39 °F Humidity: 82% Wind: South at 8 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

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

Updated: 8:40 AM PDT

Temperature: 43.9 °F Dew Point: 37 °F Humidity: 76% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion 
National Weather Service Spokane Washington 
1044 am PDT Friday Oct 24 2014 

breezy and unsettled conditions will continue for the rest 
of today but be on the decrease tonight and into tomorrow. This is 
only temporary as rain is expected to return Friday night and 
Saturday. A strong cold front passage Saturday night and Sunday 
will produce very windy conditions with gusts in excess of 40 mph. 
The pattern will continue to be active into early next week. This 
includes the potential for widespread rain into early next week as 
moisture associated with former typhoons makes its way toward the 
Pacific northwest. 


today through tonight...looks like this period will see a Little 
Break in the action in regards to our recent string of wet weather. 
The anomalously moist atmospheric river has temporarily dipped 
south of our forecast area. As of 2am...about the only weather 
action was a blanket of high level moisture covering most of the 
region. This cloud cover was associated with the 130-150kt upper 
level jet. This dry respite will gradually come to an end this 
morning in response to deep upstream trough centered near 
35n/139w. Models in good agreement that as this trough moves 
closer to the coast...the atmospheric river will buckle northward 
as a warm front and push steadily across the Oregon/Washington 
border. This transition will be accompanied by backing mid-level 
flow (southerly winds)...leading toward a significant increase in 
isentropic ascent and moisture advection. This will result in an 
increasing chance of precipitation. By midday most of the 
precipitation will be just south of our forecast area...however 
some light rain could creep into the Blue Mountains and Camas 
Prairie. By the latter half of the day...there is good model 
agreement that the northern edge of the preciptiation will lie 
approximately from Pullman to Moses Lake. 

The front will continue to surge northward overnight...reaching 
the Canadian border well after midnight. Based on the good 
moisture availability and moderate isentropic ascent...most areas 
will receive some precipitation. Confidence is highest however 
near the the 850-700 mb layer takes on a well 
defined southeast-east wind regime. This will lead to good 
orographic ascent which will only be bolstered by strong 
divergence aloft. Categorical pops will be justified for locations 
west of a Republic to Wenatchee line...and quantitative precipitation forecast totals will likely 
range from a quarter to half inch. Snow levels will likely be 
fairly high...ranging from 5.5-6k feet. This should not pose any 
travel problems...however some snow can be expected to fall late 
tonight over the highest parts of the north Cascades Highway. 
While the precipitation really gets going late tonight over 
locations near the Canadian will begin to taper off 
near the Oregon border as the dry slot move in behind the warm 
front. Fx 

Saturday through Monday night: an upper level trough and surface 
low will approach the southern Oregon coast Saturday. This weather 
disturbance will bring an increase in cloud cover through the day. 
As the surface low moves up the coast through the day and then 
pushes inland through the evening our chance of precipitation will 
increase. Have increased chance of precipitation for most 
locations as many locations should receive at least 0.01 of 
precip as this feature moves through. Even normally dry locations 
such as the basin and East Slope of the Cascades valleys could see 
rain given the decent southeast upslope flow ahead of the cold 

..breezy to windy conditions expected Saturday night and Sunday... 

Winds associated with the cold front will be quite strong. 
Saturday evening southerly winds 10 to 20 mph will be common 
across most of the Columbia Basin and into the Palouse and 
Spokane/cda areas. Those winds will increase through the overnight 
hours and into Sunday morning to 20 to 30 mph with gusts to 40 or 
45 mph. Right now the strongest winds look to stretch from the 
Blue Mountains up through the Palouse. Winds will slowly decrease 
through Sunday afternoon and into the evening hours as the surface 
low weakens and continues to move east across southern Canada. 

Sunday the chance of precipitation will decrease through the 
evening hours. The exception to this will be the Cascade crest and 
Idaho Panhandle where showers will likely continue. A Flat Ridge 
moves into the inland northwest Monday ahead of the next 
potentially big soaker. Chance of precip will increase through the 
overnight hours and into Tuesday morning, especially along the 
Cascade mountains and nearby valleys as the next weather system 
moves onto the West Coast. 

Temperatures will start out at or above average on Saturday and 
then drop to near average readings by Sunday and then to slightly 
below average readings by Monday. /Nisbet 

Tuesday through thursday: the models are depicting a shortwave 
trough pushing through the region followed by a weak ridge 
building into the region for this period. For Tuesday, widespread 
rain is expected in the morning. Precip chances will decrease from 
west to east as the period progresses into Wednesday leaving only 
the Idaho Panhandle with high potential to receive rain. Model 
agreement on Thursday is not high but they are indicating a low 
in the Gulf of Alaska beginning to press into the Pacific 
northwest and bringing some precip to the Cascades. Light winds 
associated with this pattern has potential for morning fog int he 
northern valleys. Temperatures will still be above normal with 
highs in the mid 50s to low 60s and lows in the upper 30s to mid 
40s. /Jdc 


18z tafs: little change to the previous forecast timing with VFR 
conditions expected at all taf sites through 00z with cigs steadily 
lowering through the day ahead of a warm front, currently over 
Oregon and central Idaho, which will move north overnight. The 
front will develop a east- west band of rain which will hit lws 
mwh eat and puw around 00z and push into the geg sff Coe area 
around 02z. Once the rain begins...we expect to see some clouds 
develop below 030 but we don't expect prevalent cigs at MVFR 
levels. The one exception will be at eat due to proximity to 
Cascades combined with upslope flow. The warm front will deliver 
about 6 hrs of precipitation to most sites (persisting a little 
longer at eat) with improving conditions after that. 


Preliminary point temps/pops... 
Spokane 55 44 65 43 52 36 / 0 60 30 80 30 10 
Coeur D'Alene 55 42 65 42 51 34 / 10 50 30 90 30 20 
Pullman 55 45 68 42 49 38 / 30 50 20 80 30 20 
Lewiston 59 44 72 47 56 41 / 40 50 10 60 20 20 
Colville 54 42 62 45 52 35 / 10 70 30 80 50 20 
Sandpoint 53 40 61 42 48 34 / 10 70 30 90 50 30 
Kellogg 52 41 64 40 45 34 / 10 60 20 90 40 30 
Moses Lake 57 45 60 45 59 37 / 10 80 20 30 10 10 
Wenatchee 57 44 57 43 55 38 / 10 80 60 40 10 10 
Omak 56 42 55 43 54 35 / 10 90 50 50 30 10 


Otx watches/warnings/advisories... 

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