Winterhaven, California Weather
The first anvil tops. Day 90 of spring. Read this microseason across nine climate regions →
Winterhaven weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Thunderstorm——112°83°—
- WednesdayJun 17Clear——110°81°-2°
- ThursdayJun 18Clear——105°72°-5°
- FridayJun 19Overcast——104°74°-1°
- SaturdayJun 20Clear——104°68°0°
- SundayJun 21Clear——105°68°+1°
- MondayJun 22Clear——105°67°0°
AQI 59 (Moderate), driven by Ozone. AQI up 17 in the last 6 hours — air quality is degrading. Ozone at AQI 45 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 11 around 1 PM.
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 45 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 11 around 1 PM.
- Present
- AQI 45
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 7.0 µg/m³, PM10 at 19.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.36
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:05 AM
- Moonset
- 9:57 PM
- In sign
- ♋︎ Cancer
The first anvil tops
Winterhaven at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: March 3 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Winterhaven
- Tue112°83°1%
- Wed110°80°1%
- Thu105°72°0%
- Fri104°74°0%
- Sat104°68°0%
- Sun105°68°0%
- Mon105°67°0%
- Tue109°67°0%
- Wed114°75°0%
- Thu115°80°0%
- Fri112°77°0%
- Sat109°73°0%
- Sun108°70°3%
- Mon107°72°0%
- Tue108°75°3%
- Wed102°81°3%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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.
SPC Convective Outlook
Storm Prediction Center — Winterhaven
SPC has placed Winterhaven in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Winterhaven
- 92283