Chewelah, Washington Weather
Paintbrush crowns the ridges. Day 88 of spring. Read this microseason across nine climate regions →
Chewelah weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——90°58°—
- TuesdayJun 16Partly Cloudy——87°60°-3°
- WednesdayJun 17Clear——82°52°-5°
- ThursdayJun 18Overcast——88°53°+6°
- FridayJun 19Overcast——92°63°+4°
- SaturdayJun 20Mostly Clear——88°61°-4°
- SundayJun 21Mostly Clear——77°53°-11°
AQI 45 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 10.4 µg/m³ (AQI 53) with a 0.75 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 37
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 10.4 µg/m³ (AQI 53) with a 0.75 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.75
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:46 AM
- Moonset
- 9:25 PM
- In sign
- ♊︎ Gemini
Paintbrush crowns the ridges
Chewelah at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: June 5 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Chewelah
- Mon90°58°4%
- Tue87°60°4%
- Wed82°52°0%
- Thu88°53°0%
- Fri92°63°0%
- Sat88°61°2%
- Sun77°53°7%
- Mon83°49°4%
- Tue88°61°2%
- Wed77°55°4%
- Thu72°48°9%
- Fri68°48°13%
- Sat84°48°17%
- Sun93°57°12%
- Mon92°63°6%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Warm-season window is open
As of June 15, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Microseason · June 11–15
Paintbrush crowns the ridges
Alpine wildflower wave accelerates; paintbrush and columbine peak in high meadows as daylight reaches its maximum.
Day 166 of 365 · Wedge 33 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
The year in Chewelah tops out in July (~68°F) and dips lowest in January (~27°F), with November wettest at 2.4 inches and August driest at 0.7 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 27° | 2.2″ | 7 |
| February | 31° | 1.9″ | 6 |
| March | 39° | 2.2″ | 7 |
| April | 47° | 1.9″ | 6 |
| May | 55° | 2.0″ | 7 |
| June | 61° | 2.0″ | 7 |
| July | 68° | 1.0″ | 3 |
| August | 67° | 0.7″ | 2 |
| September | 58° | 0.9″ | 3 |
| October | 45° | 1.8″ | 6 |
| November | 34° | 2.4″ | 8 |
| December | 27° | 2.3″ | 8 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Chewelah's January averages 27°F and July 68°F — 41°F apart — while precipitation totals roughly 21.4 inches over some 70 days.
Chewelah's moisture rides winter storm tracks: November brings 2.4 inches over 8.0 wet days, while August sees only 0.7 inches across 2.0 days in the dry warm season. It is a winter-storm rhythm Chewelah shares with places like Addy, WA, Valley, WA and Springdale, WA.
By late-May the frosts ease in Chewelah, opening the season for kale, peas, spinach, and parsnips. In Chewelah, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Chewelah's frost date. Around early-October, freezing nights resume in Chewelah and tender crops must come in. In Chewelah, low spots run 4-7°F colder than nearby slopes, nudging Chewelah's frost dates a week.
Similar climates: Addy, WA, Valley, WA, Springdale, WA, Loon Lake, WA, Colville, WA.
Frequently asked
- When does it freeze in Chewelah?
- Chewelah's last spring frost lands near mid-May, and in Chewelah the first fall frost follows around mid-October.
- What is the rainy season in Chewelah?
- November is the wettest month in Chewelah, about 2.4 inches on average; the year totals roughly 21 inches.
- What is the warmest month in Chewelah?
- Chewelah peaks in July, when the mean runs near 68°F.
- What is the coldest month in Chewelah?
- January is Chewelah's coldest month, averaging about 27°F.
- When can I start a vegetable garden in Chewelah?
- Around mid-May, start frost-hardy crops in Chewelah; tomatoes and basil belong a fortnight later.
- How many rainy days does Chewelah get?
- Chewelah averages about 70 days with measurable rain or snow each year.
- What hardiness zone is Chewelah?
- With January around 27°F, Chewelah's zone reflects that minimum — the USDA ZIP map confirms Chewelah's band.
- What is the 10-day forecast for Chewelah?
- Chewelah's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Chewelah?
- See this week's day-by-day rain chances for Chewelah in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Chewelah?
- Current conditions for Chewelah and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Chewelah forecast updated?
- The Chewelah forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Chewelah?
- Day length in Chewelah peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Chewelah?
- The next few days in Chewelah's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Chewelah, Washington, the warm-summer Mediterranean climate runs from about 27°F in January to 68°F in July, a 41°F seasonal range.
Across the year, Chewelah collects about 21 inches of precipitation over roughly 70 days with measurable rain or snow.
From 48.3°N, Chewelah sees a 41°F seasonal swing that governs Chewelah's planting and frost windows.
ZIP codes in Chewelah
- 99109