Ketchikan, Alaska Weather
Mosquitoes rise from snowmelt. Day 76 of spring. Read this microseason across nine climate regions →
Ketchikan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Light Rain100%0.19″61°48°—
- ThursdayJun 4Light Rain100%0.24″51°44°-10°
- FridayJun 5Light Drizzle85%0.06″53°43°+2°
- SaturdayJun 6Drizzle12%0.02″53°42°0°
- SundayJun 7Light Rain75%0.44″49°44°-4°
- MondayJun 8Light Rain69%0.19″53°44°+4°
- TuesdayJun 9Light Drizzle72%0.03″59°44°+6°
PM scrubbed by 5 hours of recent rain — PM2.5 down to 7.6 µg/m³, PM10 to 11.7 µg/m³. AQI up 5 over the last 6 hours (gradual rise).
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 33 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 33
- UV peak
- 1.5 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 33
PM × Wind × Precip
PM scrubbed by 5 hours of recent rain — PM2.5 down to 7.6 µg/m³, PM10 to 11.7 µg/m³.
- PM2.5/PM10
- 0.65
- Wind
- light
- Recent rain
- 5h in last 6h
- Pattern
- washed out
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).
The higher the clouds, the finer the weather.
- Moonrise
- 8:07 AM
- Moonset
- 2:29 PM
- In sign
- ♑︎ Capricorn
Mosquitoes rise from snowmelt
Ketchikan at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: July 17 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 3, 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.