Coulee City, Washington Weather Conditions

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Current Conditions

  • 85°
  • Clear
  • Wind: WSW 9 mph
  • Humidity: 28%
  • Visibility: 10.0 miles
  • Dew Point: 48°
  • Pressure: 29.76 in. -

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Next 12 Hours

3  pm
6  pm
9  pm
12  am
3  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
85°
83°
73°
68°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 85 °
  • Low: 60 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 86 °
  • Low: 58 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 85 °
  • Low: 58 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 81 °
  • Low: 56 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 80 °
  • Low: 57 °
  • Partly Cloudy

Forecast for Coulee City, Washington

Updated: 2:04 PM PDT on January 22, 2015

  • Friday

    Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High near 85F. Winds W at 10 to 15 mph.

  • Friday Night

    Partly cloudy skies. Low around 60F. Winds NW at 10 to 20 mph.

  • Saturday

    Intervals of clouds and sunshine. High 86F. Winds NE at 10 to 15 mph.

  • Saturday Night

    Partly cloudy skies. Low 58F. Winds NW at 10 to 15 mph.

  • Sunday

    Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High near 85F. Winds WNW at 5 to 10 mph.

  • Sunday Night

    A few clouds. Low 58F. Winds NW at 10 to 15 mph.

  • Monday

    Partly cloudy skies. High 81F. Winds WNW at 10 to 15 mph.

  • Monday Night

    Clear to partly cloudy. Low 56F. Winds NW at 10 to 15 mph.

  • Tuesday

    Intervals of clouds and sunshine. High near 80F. Winds NW at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy skies. Low 57F. Winds WNW at 5 to 10 mph.

  • Wednesday

    A mainly sunny sky. High near 85F. Winds WSW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low 59F. Winds WNW at 5 to 10 mph.

  • Thursday

    Sunny. High 88F. Winds W at 5 to 10 mph.

  • Thursday Night

    A few clouds from time to time. Low 61F. Winds ENE at 5 to 10 mph.

  • Friday

    Mostly sunny skies. High 89F. Winds E at 10 to 15 mph.

  • Friday Night

    A few clouds from time to time. Low around 60F. Winds N at 5 to 10 mph.

  • Saturday

    Mostly sunny skies. High 89F. Winds ENE at 5 to 10 mph.

  • Saturday Night

    Clear to partly cloudy. Low 62F. Winds NW at 5 to 10 mph.

  • Sunday

    Partly cloudy skies. High 88F. Winds WNW at 5 to 10 mph.

  • Sunday Night

    Widely scattered showers or a thunderstorm early. Then partly cloudy. Low 59F. Winds NW at 5 to 10 mph. Chance of rain 30%.

  • Monday

    Partly cloudy. High near 85F. Winds NW at 10 to 15 mph.

  • Monday Night

    Clear skies with a few passing clouds. Low 58F. Winds NW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: MesoWest, Mansfield, WA

Updated: 1:10 PM PDT

Temperature: 77 °F Dew Point: 41 °F Humidity: 28% Wind: NE at 6 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Adrian, Soap Lake, WA

Updated: 3:04 PM PDT

Temperature: 89.4 °F Dew Point: 48 °F Humidity: 24% Wind: SSW at 7.4 mph Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: MesoWest, Soap Lake, WA

Updated: 1:15 PM PDT

Temperature: 83 °F Dew Point: 51 °F Humidity: 33% Wind: ENE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: MesoWest, Electric City, WA

Updated: 1:10 PM PDT

Temperature: 78 °F Dew Point: 47 °F Humidity: 34% Wind: SSW at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Ephrata Mike, Ephrata, WA

Updated: 3:00 PM PDT

Temperature: 85.3 °F Dew Point: 50 °F Humidity: 30% Wind: SW at 8.0 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Grand Coulee, Grand Coulee, WA

Updated: 3:04 PM PDT

Temperature: 91.8 °F Dew Point: 50 °F Humidity: 24% Wind: SW at 2.7 mph Pressure: 28.22 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

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

Updated: 2:59 PM PDT

Temperature: 83.6 °F Dew Point: 47 °F Humidity: 28% Wind: NW at 1.0 mph Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
238 PM PDT Friday may 22 2015 


Synopsis... 
the Memorial Day weekend is expected to be warmer than average, 
with afternoon temperatures in the 70s and 80s. Look for scattered 
showers and thunderstorms this weekend into next week. Some 
thunderstorms will be capable of producing heavy downpours and 
frequent lightning. 


&& 


Discussion... 


Tonight: we'll be dealing with short-segment lines of 
thunderstorms moving west off the higher terrain of north Idaho and 
into Spokane and the Palouse. The other area of concern is the 
potential for flash flooding/debris flows on recent 2013-2014 
burn scars. So far most of these scars have been missed by the 
heaviest rain rates in the Cascades. The devels Elbow complex 
south of Republic has, so far, received the most direct hit...but 
calls to local authorities have yielded no reports of debris 
flows. The cape/shear combo supports heavy downpours and small 
hail into this evening with any thunderstorms. We'll be doing 
nowcasts, facebook posts and twitter updates when time allows.Bz 


Saturday through monday: models are in pretty good agreement of 
where to track the upper level low that is moving down British 
Columbia and into the inland northwest this weekend. The low now 
doesn't push into Washington until Sunday evening/Monday morning. 
Until then...northeasterly flow into the northern Idaho Panhandle 
and northeast Washington will keep conditions dry with mostly 
clear skies. The main concern for showers and thunderstorms will 
continue to remain across extreme southeast WA, the central Idaho 
Panhandle and along the Cascades. Each afternoon and evening 
showers and thunderstorms will develop and then wane with the 
setting sun in the evening. Isolated showers is possible through 
the overnight and early morning hours for the aforementioned 
areas. Given we are expecting less shower activity and clouds 
Saturday and early Sunday, have increased Max temps about 1-3 
degrees. Sunday night/Monday the upper low will move into 
Washington. There are some model differences of where the low GOES 
during the day on Monday. Nevertheless the chance of widespread 
rain will increase. Monday looks to be the 'crummiest' day of the 
Holiday weekend. Have lowered Max temps a few degrees, as we 
looked to be the outlier compared to other forecast models. 
/Nisbet 


Monday night through friday: the inland northwest remains unsettled 
with some threat of showers and thunderstorms each day. Most 
models keep the region in a weak flow pattern with a mid-level low 
bobbling about the northwest United States at least through 
Wednesday. Thereafter models diverge, either holding the low near 
the northern rockies or showing a transition to a west-southwest 
flow with a low migrating down the British Columbia coast. Either way 
instability blossoms each afternoon, in the form of expanding 
cape. Precisely how much synoptic forcing there is and where it 
will lay will come into more focus as models come into better 
agreement. But for now look for a threat of showers and 
thunderstorms expanding each afternoon, then dissipating but not 
entirely ending for the night and morning hours. The threat will 
be best throughout the region through Wednesday. Thereafter there 
is some suggestion that the threat will retreat away from deeper 
Columbia Basin toward Thursday and Friday. Any of these 
showers/T-storms may contain the typical brief heavy rain and 
perhaps some small hail and lightning, but given the more 
convective nature of the system none of this is a definite for any 
one location. /J. Cote' 




&& 


Aviation... 
18z tafs: with showers and isolated thunder now beginning to 
develop over ern WA and north Idaho, we'll trend steadily toward an 
increasing areal coverage and intensity of thunderstorms. The 
main threats will be heavy downpours and small hail. Gusty outflow 
winds are not out of the question...around 30 kts. All storms will 
move nearly due west. The main taf sites affected will be klws, 
kpuw, kmwh, and keat. Though the current tafs show VFR wx, it's 
likely that the localized heavy downpours will not only lower 
ceilings close to MVFR, but will also restrict vsbys. Stay tuned 
for taf updates... bz 




&& 


Preliminary point temps/pops... 
Spokane 53 82 52 80 53 73 / 10 10 10 20 30 50 
Coeur D'Alene 52 80 53 80 52 71 / 20 10 10 20 30 50 
Pullman 49 76 46 75 48 71 / 20 10 10 10 20 30 
Lewiston 56 82 55 82 55 79 / 30 20 20 20 20 30 
Colville 53 86 54 81 51 73 / 20 10 10 30 30 70 
Sandpoint 50 81 48 79 49 71 / 10 10 10 20 20 60 
Kellogg 50 80 49 80 48 70 / 20 20 10 20 20 50 
Moses Lake 56 86 55 83 54 80 / 20 10 10 10 20 20 
Wenatchee 59 85 59 81 57 79 / 50 10 10 20 20 10 
Omak 53 87 53 83 52 77 / 30 10 10 30 20 40 


&& 


Otx watches/warnings/advisories... 
Idaho...none. 
Washington...Flash Flood Watch until 8 PM PDT this evening for east slopes 
northern Cascades. 


&& 


$$ 



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