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Weather in Tri-Cities, United States 🇺🇸

Weather Forecast in Tri-Cities

Current Weather in Tri-Cities

Air Quality Alert issued July 20 at 3:24PM PDT by NWS Pendleton OR
Overcast
26°C
Feels like 25°C. Overcast.
🌬️ 10 km/h NW
💧 45% Humidity
🧭 1014 hPa
👁️ 13.0 km Visibility
☀️ UV Index: 0.1
🌡️ Dew Point: 9°C
🌅 Sunrise: 05:25 AM
🌇 Sunset: 08:41 PM
Map Overlays:

In Tri-Cities right now it is 26°C and overcast, feeling like 25°C. Humidity sits at 45% and winds are near 10 km/h, and the UV index is 0 (low). Over the next few days, temperatures in Tri-Cities range from about 16°C to 43°C. ⚠️ Air Quality Alert issued July 20 at 3:24PM PDT by NWS Pendleton OR

Hourly Forecast for Tri-Cities

21:00
Clear
24°
1%
22:00
Clear
23°
1%
23:00
Clear
22°
1%
00:00
Clear
21°
1%
01:00
Clear
20°
1%
02:00
Clear
19°
2%
03:00
Clear
18°
2%
04:00
Clear
18°
2%
05:00
Clear
17°
3%
06:00
Sunny
16°
3%
07:00
Sunny
19°
2%
08:00
Sunny
22°
1%
09:00
Sunny
26°
1%
10:00
Sunny
29°
0%
11:00
Sunny
35°
1%
12:00
Sunny
37°
1%
13:00
Sunny
38°
1%
14:00
Sunny
39°
1%
15:00
Sunny
40°
1%
16:00
Sunny
40°
1%
17:00
Sunny
40°
1%
18:00
Sunny
40°
1%
19:00
Sunny
39°
1%
20:00
Sunny
34°
1%

14-Day Forecast for Tri-Cities

Mon, Jul 20
Sunny Sunny
33° / 16°
Tue, Jul 21
Sunny Sunny
40° / 16°
Wed, Jul 22
Sunny Sunny
43° / 24°
Thu, Jul 23
Sunny Sunny
42° / 25°
Fri, Jul 24
Sunny Sunny
39° / 19°
Sat, Jul 25
Sunny Sunny
33° / 18°
Sun, Jul 26
Sunny Sunny
36° / 15°
Mon, Jul 27
Sunny Sunny
36° / 17°
Tue, Jul 28
Sunny Sunny
35° / 16°
Wed, Jul 29
Sunny Sunny
30° / 16°
Thu, Jul 30
Sunny Sunny
30° / 10°
Fri, Jul 31
Sunny Sunny
34° / 13°
Sat, Aug 01
Sunny Sunny
35° / 15°
Sun, Aug 02
Sunny Sunny
38° / 16°

Additional Forecasts for Tri-Cities

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 146.0 μg/m³
O₃ (Ozone) 108.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.6 μg/m³
SO₂ (Sulphur Dioxide) 0.5 μg/m³
PM2.5 (Fine particles) 9.2 μg/m³
PM10 (Coarse particles) 10.4 μg/m³

Historical Weather

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Best Time to Be Outside in Tri-Cities Tomorrow

There is no good daylight window left in Tri-Cities today. Tomorrow, the most comfortable window looks like 07:00 to 09:00, when it is around 22°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Tri-Cities

What is the temperature in Tri-Cities right now?

The current temperature in Tri-Cities is 26°C (79°F), overcast (feels like 25°C).

What's the weather like in Tri-Cities right now?

Current weather in Tri-Cities: Overcast, humidity 45%, wind 10 km/h NW.

What is today's forecast for Tri-Cities?

Today in Tri-Cities: high 33°C, low 16°C, sunny. Chance of rain: 1%.

What is the 7-day weather forecast for Tri-Cities?

Daily highs and lows for Tri-Cities:

  • 2026-07-20: 33°C / 16°C
  • 2026-07-21: 40°C / 16°C
  • 2026-07-22: 43°C / 24°C
  • 2026-07-23: 42°C / 25°C
  • 2026-07-24: 39°C / 19°C
  • 2026-07-25: 33°C / 18°C
  • 2026-07-26: 36°C / 15°C
Is it going to rain in Tri-Cities today?

There is a 1% chance of rain in Tri-Cities today.

What is the wind speed in Tri-Cities right now?

Wind in Tri-Cities is currently 10 km/h (6 mph) from the NW.

What is the UV index in Tri-Cities right now?

The UV index in Tri-Cities is currently 0.1 (low). Sun protection is recommended when the index is 3 or higher.

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