Grand Coulee, Washington Weather
Grand Coulee, Washington — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast, soil and crop conditions for Grand Coulee, Grant County.
Tides, marine forecast and fishing conditions near Grand Coulee. Tide source:
Full aviation weather for Grand Coulee is published on the Wilbur Airport (K2S8) page, 28 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 4 airfields within reach of Grand Coulee have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Grand Coulee: Mansfield Airport (K8W3) 50 km · Anderson Field (KS97) 56 km · Wilson Creek Airport (K5W1) 59 km
Conditions reported at K2S8 describe the airfield itself. Weather 28 km away can differ, particularly in terrain or near the coast. For conditions at Grand Coulee specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Grand Coulee.
About Grand Coulee, Washington
Grand Coulee lies etched against a backdrop of stark, sun-baked basalt, where the scablands tell a story of ancient floods and powerful forces. It lies 14.6 miles west of Clark, WA (from Clark, WA: bearing 274°T), and is situated 2.1 miles south-west of Coulee Dam. The air, dry and carrying the scent of sagebrush, shimmers with a persistent heat, even as the vast expanse of the Columbia River, tamed and channeled, reflects the immense sky. Eroded coulees, remnants of glacial meltwater's fury, carve deep shadows into the landscape, their sheer walls a testament to geological time. The light here, especially as evening draws in, possesses a peculiar clarity, sharpening the edges of the distant mountains and painting the sky in hues of ochre and rose. It is a place where the land feels both immense and intimately sculpted, a raw beauty born of upheaval. The heart of Grand Coulee beats with the rhythm of its colossal dam, a monument of human ambition that transformed this arid land into a powerhouse and an agricultural oasis. The economy, once dominated by the monumental construction project, now thrives on the bounty of irrigated fields, where orchards and vineyards flourish, and on the steady hum of hydroelectric generation. The reservoir it created, Banks Lake, offers a surprising aquatic respite, its shores dotted with recreation areas, a stark contrast to the surrounding desert. History whispers in the wind that sweeps across the coulees, a narrative of pioneers, engineers, and the enduring spirit of those who chose to build and thrive in this challenging, yet profoundly rewarding, corner of the world.
Live animated radar for Grand Coulee and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Grand Coulee, Grant County, Washington |
| Coordinates | 47.941541°N, 119.003355°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 99133, 99116 |
| Area Code | 509 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Grand Coulee, Washington Weather Page
This page provides live weather conditions and forecasts for Grand Coulee, Washington, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Grand Coulee includes coordinates 47.941541°N, 119.003355°W, situated in Grant County. ZIP code 99133, 99116. Telephone area code: 509. Timezone: Pacific Time (America/Los_Angeles).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
