Current Conditions

Tri-Cities, Washington

76°F25°C

Clear

Wind

E 3 mph5 km/h

Humidity

28%

Cloud Cover

As of Tuesday, September 8, 2026 at 9:17 PM PDT

Today's Outlook

Night

Mostly clear, with a low around 55°F13°C. Light wind from the S around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 89°F31°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 25%	Wind S 3 mph5 km/h	Wednesday: Partly cloudy and hot, with a high of 89°F31°C and morning low of 57°F14°C. Light wind from the SSW around 3 mph5 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 55°F13°C. Light wind from the S around 4 mph6 km/h.
Drizzle	High 88°F31°C	Low 60°F15°C	Precip 0.01 in0.3 mm19%	Cloud 78%	Wind WSW 6 mph9 km/h	Thursday: Overcast and hot, with a high of 88°F31°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 60°F15°C. Breezy from the SW at 5 to 7 mph9 to 12 km/h. 19% chance of drizzle overnight.
Drizzle	High 78°F26°C	Low 57°F14°C	Precip 0.01 in0.3 mm14%	Cloud 51%	Wind SW 4 mph7 km/h	Friday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 62°F16°C. Light wind from the SW around 4 mph6 km/h. Dry air. Friday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph7 km/h. 14% chance of drizzle overnight.
Showers	High 76°F24°C	Low 56°F13°C	Precip 0.07 in1.9 mm38%	Cloud 59%	Wind WSW 6 mph9 km/h	Saturday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 7 mph9 to 11 km/h. 19% chance of drizzle in the afternoon. Dry air. Saturday Night: Mostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. 38% chance of showers in the evening.
Showers	High 69°F21°C	Low 57°F14°C	Precip 0.19 in4.7 mm50%	Cloud 58%	Wind SW 10 mph15 km/h	Sunday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 59°F15°C. Breezy from the SW at 11 to 12 mph17 to 19 km/h. 42% chance of showers throughout the day. Dry air. Sunday Night: Mostly cloudy, with a low around 57°F14°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 50% chance of showers overnight.
Clear	High 75°F24°C	Low 53°F12°C	Precip 0 in0.1 mm2%	Cloud 16%	Wind SSW 6 mph10 km/h	Monday: Mostly clear and warm, with a high of 75°F24°C and morning low of 57°F14°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. Dry air. Monday Night: Mostly clear, with a low around 53°F12°C. Breezy from the SSW at 6 to 7 mph9 to 11 km/h.
Clear	High 77°F25°C	Low 53°F12°C	Precip 0.01 in0.2 mm6%	Cloud 32%	Wind WNW 4 mph7 km/h	Tuesday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 58°F14°C. Light wind from the WNW around 4 mph7 km/h. Dry air. Tuesday Night: Partly cloudy, with a low around 53°F12°C. Light wind from the W around 4 mph6 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	89°F31°C	55°F13°C	0 in0 mm· —	25%	Clear	S 3 mph5 km/h
DayPartly cloudy and hot, with a high of 89°F31°C and morning low of 57°F14°C. Light wind from the SSW around 3 mph5 km/h. Dry air. NightMostly clear, with a low around 55°F13°C. Light wind from the S around 4 mph6 km/h.
	ThursdaySep 10	88°F31°C	60°F15°C	0.01 in0.3 mm· 19%	78%	Drizzle	WSW 6 mph9 km/h
DayOvercast and hot, with a high of 88°F31°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. Dry air. NightMostly cloudy, with a low around 60°F15°C. Breezy from the SW at 5 to 7 mph9 to 12 km/h. 19% chance of drizzle overnight.
	FridaySep 11	78°F26°C	57°F14°C	0.01 in0.3 mm· 14%	51%	Drizzle	SW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 62°F16°C. Light wind from the SW around 4 mph6 km/h. Dry air. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph7 km/h. 14% chance of drizzle overnight.
	SaturdaySep 12	76°F24°C	56°F13°C	0.07 in1.9 mm· 38%	59%	Showers	WSW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 58°F15°C. Breezy from the WSW at 5 to 7 mph9 to 11 km/h. 19% chance of drizzle in the afternoon. Dry air. NightMostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h. 38% chance of showers in the evening.
	SundaySep 13	69°F21°C	57°F14°C	0.19 in4.7 mm· 50%	58%	Showers	SW 10 mph15 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 59°F15°C. Breezy from the SW at 11 to 12 mph17 to 19 km/h. 42% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 50% chance of showers overnight.
	MondaySep 14	75°F24°C	53°F12°C	0 in0.1 mm· 2%	16%	Clear	SSW 6 mph10 km/h
DayMostly clear and warm, with a high of 75°F24°C and morning low of 57°F14°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. Dry air. NightMostly clear, with a low around 53°F12°C. Breezy from the SSW at 6 to 7 mph9 to 11 km/h.
	TuesdaySep 15	77°F25°C	53°F12°C	0.01 in0.2 mm· 6%	32%	Clear	WNW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 58°F14°C. Light wind from the WNW around 4 mph7 km/h. Dry air. NightPartly cloudy, with a low around 53°F12°C. Light wind from the W around 4 mph6 km/h.
	WednesdaySep 16	78°F25°C	54°F12°C	0.02 in0.4 mm· 6%	19%	Clear	N 5 mph8 km/h
DayMostly clear and warm, with a high of 78°F25°C and morning low of 57°F14°C. Light wind from the N around 5 mph8 km/h. Dry air. NightMostly clear, with a low around 54°F12°C. Light wind from the NNW around 5 mph7 km/h.
	ThursdaySep 17	80°F27°C	53°F12°C	0.01 in0.2 mm· 4%	12%	Clear	N 4 mph7 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 55°F13°C. Light wind from the N around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 53°F12°C. Light wind from the N around 4 mph7 km/h.
	FridaySep 18	82°F28°C	55°F13°C	0.01 in0.2 mm· 3%	16%	Clear	NNW 4 mph7 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 57°F14°C. Light wind from the N around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 55°F13°C. Light wind from the NW around 4 mph7 km/h.
	SaturdaySep 19	81°F27°C	57°F14°C	0 in0.1 mm· 4%	26%	Clear	WNW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 58°F15°C. Light wind from the NW around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 57°F14°C. Light wind from the W around 5 mph7 km/h.
	SundaySep 20	81°F27°C	57°F14°C	0.01 in0.2 mm· 4%	31%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 60°F15°C. Light wind from the W around 5 mph8 km/h. Dry air. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph8 km/h.
	MondaySep 21	79°F26°C	57°F14°C	0.01 in0.3 mm· 5%	35%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 59°F15°C. Light wind from the WSW around 5 mph8 km/h. Dry air. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph8 km/h.
	TuesdaySep 22	79°F26°C	57°F14°C	0.02 in0.4 mm· 6%	35%	Clear	WSW 5 mph9 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 61°F16°C. Light wind from the WSW around 5 mph9 km/h. Dry air. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph8 km/h.
	WednesdaySep 23	79°F26°C	56°F13°C	0.02 in0.4 mm· 6%	31%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 58°F15°C. Light wind from the WSW around 5 mph8 km/h. Dry air. NightPartly cloudy, with a low around 56°F13°C. Light wind from the SW around 5 mph8 km/h.

Nearby Cities

Kennewick4 mi6 km Pasco5 mi7 km Richland5 mi8 km Hermiston28 mi46 km Sunnyside39 mi63 km Walla Walla43 mi69 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 46.2454°N, 119.1962°W·Elevation: 106m·Timezone: America/Los_Angeles·Population: 244,036