Grayson, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Grayson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——91°62°—
- MondayJul 6Overcast——90°58°-1°
- TuesdayJul 7Clear——97°54°+7°
- WednesdayJul 8Clear——101°55°+4°
- ThursdayJul 9Clear——105°60°+4°
- FridayJul 10Overcast——108°62°+3°
- SaturdayJul 11Overcast——112°67°+4°
AQI 42 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.4 µg/m³ (AQI 57) with a 0.71 fine-to-coarse ratio and 6 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 12.4 µg/m³ (AQI 57) with a 0.71 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.71
- 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
- 11:23 PM
- Moonset
- 11:23 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Grayson at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Grayson
- Sun91°62°5%
- Mon90°58°0%
- Tue97°54°0%
- Wed101°55°0%
- Thu105°60°0%
- Fri108°62°0%
- Sat112°67°0%
- Sun92°74°2%
- Mon105°71°4%
- Tue110°69°5%
- Wed111°69°0%
- Thu112°70°1%
- Fri116°75°3%
- Sat111°72°3%
- Sun108°74°3%
- Mon107°66°0%
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 Grayson
- 95363