Nicasio, California Weather
Warm winds drive dryness inland. Day 16 of summer. Read this microseason across nine climate regions →
Nicasio weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Foggy——69°54°—
- TuesdayJul 7Foggy——64°52°-5°
- WednesdayJul 8Overcast——77°51°+13°
- ThursdayJul 9Partly Cloudy——82°51°+5°
- FridayJul 10Overcast——80°51°-2°
- SaturdayJul 11Overcast——80°55°0°
- SundayJul 12Overcast——82°55°+2°
AQI 27 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
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 4.7 µg/m³ (AQI 26), ratio 0.65 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.65
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:54 PM
- Moonset
- 12:36 PM
- In sign
- ♈︎ Aries
Warm winds drive dryness inland
Nicasio at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 4 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 94946
16-Day Forecast — Nicasio
- Mon69°54°2%
- Tue64°52°5%
- Wed77°51°1%
- Thu82°51°0%
- Fri80°51°0%
- Sat80°55°1%
- Sun82°55°2%
- Mon88°56°2%
- Tue88°54°1%
- Wed84°52°1%
- Thu86°54°1%
- Fri91°55°3%
- Sat92°58°0%
- Sun85°57°0%
- Mon79°55°0%
- Tue82°53°0%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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.
ZIP codes in Nicasio
- 94946