Youngstown, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Youngstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast22%—71°58°—
- MondayJul 6Overcast——74°59°+3°
- TuesdayJul 7Partly Cloudy——81°57°+7°
- WednesdayJul 8Clear——83°57°+2°
- ThursdayJul 9Clear——86°58°+3°
- FridayJul 10Overcast——89°59°+3°
- SaturdayJul 11Overcast——89°62°0°
AQI 33 (Good), driven by PM2.5. AQI projected to climb to 52 over the next 6 hours. PM2.5 at 9.9 µg/m³ (AQI 52), ratio 0.54 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
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 50. Overcast through the UV peak window (cloud cover ~85%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 8.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 27
PM × Wind × Precip
PM2.5 at 9.9 µg/m³ (AQI 52), ratio 0.54 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.54
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:17 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Youngstown at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Youngstown
- Sun71°58°22%
- Mon74°59°1%
- Tue81°57°0%
- Wed83°57°0%
- Thu86°58°0%
- Fri89°59°0%
- Sat89°62°1%
- Sun90°63°2%
- Mon93°67°6%
- Tue92°68°10%
- Wed79°60°5%
- Thu83°61°23%
- Fri89°62°16%
- Sat95°67°18%
- Sun95°71°19%
- Mon90°67°19%
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 Youngstown
- 95389