Tri-City, OR weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Tri-City now
Loading the National Weather Service forecast…
Tri-City weather by the hour
Tri-City weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Tri-City.
This week in Tri-City
Sunrise, sunset and moon in Tri-City
What is the weather usually like in Tri-City?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 89°F average high
- Decembercoldest month · 37°F average low
- 31.1 inprecipitation per year · 790 mm
- 1.9 insnowfall per year · 5 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Tri-City: May to July and September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station RIDDLE, OR US (USC00357169), adjusted for the elevation of Tri-City.
Tri-City weather month by month
Sunrise and sunset in Tri-City through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:39 AM | 5:05 PM | 9 h 26 min |
| February | 7:08 AM | 5:46 PM | 10 h 37 min |
| March | 7:23 AM | 7:21 PM | 11 h 58 min |
| April | 6:29 AM | 7:57 PM | 13 h 28 min |
| May | 5:47 AM | 8:31 PM | 14 h 43 min |
| June | 5:31 AM | 8:55 PM | 15 h 24 min |
| July | 5:46 AM | 8:51 PM | 15 h 5 min |
| August | 6:18 AM | 8:17 PM | 13 h 58 min |
| September | 6:51 AM | 7:24 PM | 12 h 32 min |
| October | 7:25 AM | 6:32 PM | 11 h 6 min |
| November | 7:04 AM | 4:51 PM | 9 h 46 min |
| December | 7:36 AM | 4:40 PM | 9 h 4 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Tri-City?
Tri-City has a warm-summer mediterranean climate. The warmest month is August, with an average high of 89°F (31°C), and the coldest is December, with average lows of 37°F (3°C).
It gets about 31.1 inches (790 mm) of precipitation a year. The wettest month is December and the driest is July. Snow is common: about 2 inches fall in an average year.
The best time to visit Tri-City is May to July and September. At 741 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Tri-City
Weather in towns near Tri-City
Questions about the weather in Tri-City
What is the hottest month in Tri-City?
August, with an average high of 89°F (31°C).
What is the coldest month in Tri-City?
December, with an average low of 37°F (3°C).
How much does it rain in Tri-City?
About 31.1 inches (790 mm) a year; the wettest month is December.
Does it snow in Tri-City?
Yes, about 2 inches of snow fall in an average year.
When is the best time to visit Tri-City?
May to July and September, when temperatures are most pleasant and rainy days are fewer.
What climate does Tri-City have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Tri-City in November?
Highs average 58°F and lows 40°F, with about 4.6 inches of precipitation.
What time is sunrise in Tri-City?
Around 7:04 AM in mid-November, and sunset around 4:51 PM. Today’s exact times are shown above.
Where does this Tri-City weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Tri-City.
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