Allyn, Washington Weather
Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →
Allyn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——76°53°—
- MondayJul 6Overcast——84°54°+8°
- TuesdayJul 7Overcast——80°47°-4°
- WednesdayJul 8Overcast——74°52°-6°
- ThursdayJul 9Mostly Clear——80°44°+6°
- FridayJul 10Overcast——70°51°-10°
- SaturdayJul 11Overcast——71°52°+1°
AQI 15 (Good), driven by PM2.5. AQI down 11 over the last 6 hours (gradual decline). PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.87 fine-to-coarse ratio and 2 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
PM × Wind × Precip
PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.87 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:37 PM
- Moonset
- 11:27 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Allyn at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: May 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 98524
16-Day Forecast — Allyn
- Sun76°53°1%
- Mon84°54°0%
- Tue80°47°1%
- Wed74°52°6%
- Thu80°44°2%
- Fri70°51°2%
- Sat71°52°6%
- Sun62°47°5%
- Mon81°54°4%
- Tue86°55°3%
- Wed85°55°1%
- Thu89°54°3%
- Fri91°54°3%
- Sat88°54°10%
- Sun82°53°3%
- Mon80°49°3%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Microseason · July 1–5
Fireweed Ignites
Magenta fireweed spires surge from burned and cleared slopes, their blooms climbing from base upward. July's signature color claims the disturbed ground.
Day 186 of 365 · Wedge 37 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
August is Allyn's warmest stretch (~66°F) and December its coldest (~40°F); precipitation crests in December at 9.9 inches and ebbs in July to 0.8 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 41° | 9.3″ | 14 |
| February | 42° | 5.8″ | 10 |
| March | 46° | 6.4″ | 12 |
| April | 50° | 3.9″ | 9 |
| May | 56° | 2.4″ | 6 |
| June | 61° | 1.6″ | 5 |
| July | 66° | 0.8″ | 2 |
| August | 66° | 1.1″ | 2 |
| September | 62° | 1.8″ | 5 |
| October | 53° | 5.1″ | 9 |
| November | 45° | 8.8″ | 13 |
| December | 40° | 9.9″ | 14 |
Regional context
Allyn swings from 41°F in January to 66°F in July (24°F) per NOAA NCEI 1991-2020 normals; precipitation in Allyn runs about 56.9 inches on roughly 102 measurable days.
Precipitation in Allyn peaks in the cool season: December averages 9.9 inches across 13.6 storm-fed days, while July bottoms out at 0.8 inches over just 2.3 rainy days. That groups Allyn with places like Vaughn, WA, Grapeview, WA and Belfair, WA on the same cool-season storm track.
Around late-May, Allyn sheds its freezing nights — peas, lettuce, spinach, and radishes go into Allyn's beds. Heat-demanding starts go out a fortnight on in Allyn, after the soil warms and cold snaps clear. The season ends by early-October in Allyn, once hard frosts set back in. Allyn's low ground holds frost later into spring than Allyn's benches, which run 3-5 days ahead.
Similar climates: Vaughn, WA, Grapeview, WA, Belfair, WA, Key Center, WA, Stansberry Lake, WA.
Frequently asked
- When does it freeze in Allyn?
- Frost typically leaves Allyn by mid-May and returns to Allyn near mid-October.
- What is the rainy season in Allyn?
- Allyn sees its heaviest rain in December (around 9.9 inches), part of roughly 57 inches a year.
- What is the warmest month in Allyn?
- August is Allyn's warmest month, averaging about 66°F.
- What is the coldest month in Allyn?
- Allyn bottoms out in December, with a mean near 40°F.
- When can I start a vegetable garden in Allyn?
- Frost-hardy sowings begin at mid-May in Allyn; warm-season starts follow two weeks on.
- How many rainy days does Allyn get?
- Allyn averages about 102 days with measurable rain or snow each year.
- What hardiness zone is Allyn?
- Allyn sits in the USDA zone set by December lows near 40°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Allyn?
- Allyn'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 Allyn?
- See this week's day-by-day rain chances for Allyn in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Allyn?
- Current conditions for Allyn and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Allyn forecast updated?
- The Allyn forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Allyn?
- Today's sunrise and sunset times for Allyn are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Allyn?
- The next few days in Allyn's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Allyn, Washington has a warm-summer Mediterranean climate: January averages roughly 41°F, July about 66°F, 25°F between them.
Across the year, Allyn collects about 57 inches of precipitation over roughly 102 days with measurable rain or snow.
Latitude 47.4°N gives Allyn its 25°F swing, and with it the rhythm of Allyn's growing season.
ZIP codes in Allyn
- 98524