Current Conditions

Tri-Cities, Washington

71°F22°C
Partly Cloudy

Wind

SSW 6 mph10 km/h

Humidity

34%

Cloud Cover

0%

As of Tuesday, September 22, 2026 at 9:15 PM PDT

Today's Outlook

Night

Mostly cloudy, with a low around 52°F11°C. Light wind from the S around 5 mph8 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 78°F26°CLow 52°F11°CPrecip 0 in0 mmCloud 61%Wind SSW 4 mph7 km/hWednesday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 55°F13°C. Light wind from the SW around 4 mph7 km/h. Dry air. Wednesday Night: Mostly cloudy, with a low around 52°F11°C. Light wind from the S around 5 mph8 km/h.
Partly CloudyHigh 78°F26°CLow 52°F11°CPrecip 0 in0 mmCloud 74%Wind WNW 3 mph5 km/hThursday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 53°F12°C. Light wind from the NW around 3 mph4 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 52°F11°C. Light wind from the SSW around 3 mph6 km/h.
ShowersHigh 69°F21°CLow 55°F13°CPrecip 0.14 in3.6 mm86%Cloud 53%Wind SW 11 mph18 km/hFriday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 60°F16°C. Windy from the SW at 14 to 19 mph23 to 31 km/h. 86% chance of showers throughout the day. Dry air. Friday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the SW at 8 to 12 mph13 to 19 km/h. 29% chance of drizzle before dawn.
Partly CloudyHigh 67°F20°CLow 46°F8°CPrecip 0 in0 mmCloud 41%Wind SW 5 mph8 km/hSaturday: Partly cloudy and mild, with a high of 67°F20°C and morning low of 49°F10°C. Light wind from the SSW around 4 mph7 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 46°F8°C. Breezy from the WSW at 5 to 7 mph9 to 11 km/h.
Partly CloudyHigh 69°F21°CLow 47°F9°CPrecip 0 in0.1 mm4%Cloud 52%Wind WNW 4 mph7 km/hSunday: Partly cloudy and warm, with a high of 69°F21°C and morning low of 53°F11°C. Light wind from the NW around 4 mph7 km/h. Dry air. Sunday Night: Mostly cloudy, with a low around 47°F9°C. Light wind from the WNW around 5 mph7 km/h.
Partly CloudyHigh 70°F21°CLow 47°F8°CPrecip 0.01 in0.2 mm3%Cloud 58%Wind SSW 5 mph8 km/hMonday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 49°F10°C. Light wind from the SSW around 5 mph8 km/h. Dry air. Monday Night: Mostly cloudy, with a low around 47°F8°C. Light wind from the S around 5 mph7 km/h.
Partly CloudyHigh 73°F23°CLow 53°F11°CPrecip 0.02 in0.6 mm9%Cloud 63%Wind SSW 6 mph10 km/hTuesday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 56°F14°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. Dry air. Tuesday Night: Mostly cloudy, with a low around 53°F11°C. Light wind from the SSW around 5 mph9 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2378°F26°C52°F11°C0 in0 mm· —61%Partly CloudySSW 4 mph7 km/h
ThursdaySep 2478°F26°C52°F11°C0 in0 mm· —74%Partly CloudyWNW 3 mph5 km/h
FridaySep 2569°F21°C55°F13°C0.14 in3.6 mm· 86%53%ShowersSW 11 mph18 km/h
SaturdaySep 2667°F20°C46°F8°C0 in0 mm· —41%Partly CloudySW 5 mph8 km/h
SundaySep 2769°F21°C47°F9°C0 in0.1 mm· 4%52%Partly CloudyWNW 4 mph7 km/h
MondaySep 2870°F21°C47°F8°C0.01 in0.2 mm· 3%58%Partly CloudySSW 5 mph8 km/h
TuesdaySep 2973°F23°C53°F11°C0.02 in0.6 mm· 9%63%Partly CloudySSW 6 mph10 km/h
WednesdaySep 3072°F22°C53°F11°C0.03 in0.7 mm· 8%52%Partly CloudySW 6 mph10 km/h
ThursdayOct 169°F21°C52°F11°C0.02 in0.5 mm· 8%51%Partly CloudyWSW 6 mph10 km/h
FridayOct 270°F21°C49°F10°C0.02 in0.4 mm· 7%34%ClearW 5 mph9 km/h
SaturdayOct 372°F22°C47°F9°C0 in0.1 mm· 4%31%ClearNNW 4 mph7 km/h
SundayOct 473°F23°C50°F10°C0.02 in0.4 mm· 6%39%ClearWNW 4 mph7 km/h
MondayOct 574°F23°C50°F10°C0 in0.1 mm· 2%30%ClearWNW 5 mph8 km/h
TuesdayOct 676°F24°C51°F11°C0.01 in0.2 mm· 4%33%ClearW 5 mph7 km/h
WednesdayOct 775°F24°C53°F12°C0.02 in0.4 mm· 7%35%ClearWSW 5 mph8 km/h

Nearby Cities

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.

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