Calistoga, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Calistoga weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——79°54°—
- MondayJul 6Foggy——79°51°0°
- TuesdayJul 7Foggy——86°49°+7°
- WednesdayJul 8Clear——94°52°+8°
- ThursdayJul 9Clear——96°57°+2°
- FridayJul 10Overcast——97°56°+1°
- SaturdayJul 11Overcast——102°61°+5°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.0 µg/m³ (AQI 28) with a 0.74 fine-to-coarse ratio and 5 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 5.0 µg/m³ (AQI 28) with a 0.74 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.74
- Wind
- light
- 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
- 11:30 PM
- Moonset
- 11:29 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Calistoga at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 94515
16-Day Forecast — Calistoga
- Sun78°54°0%
- Mon79°51°0%
- Tue86°49°0%
- Wed94°52°0%
- Thu96°57°0%
- Fri97°56°0%
- Sat102°61°1%
- Sun103°60°0%
- Mon109°71°2%
- Tue109°72°3%
- Wed102°64°1%
- Thu84°72°1%
- Fri107°71°3%
- Sat111°72°3%
- Sun106°67°0%
- Mon97°57°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.
ZIP codes in Calistoga
- 94515