Calexico, California Weather
Heat hardens the dust. Day 77 of spring. Read this microseason across nine climate regions →
Calexico weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——110°72°—
- FridayJun 5Clear——108°69°-2°
- SaturdayJun 6Overcast——107°78°-1°
- SundayJun 7Overcast——104°75°-3°
- MondayJun 8Overcast——103°72°-1°
- TuesdayJun 9Clear——104°73°+1°
- WednesdayJun 10Clear——100°76°-4°
PM2.5 at 22.3 µg/m³ (AQI 76) with a 0.84 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust. AQI down 20 over the last 6 hours — air quality is improving sharply.
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 22.3 µg/m³ (AQI 76) with a 0.84 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.84
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
NO₂ × Time of day
NO₂ at AQI 28 during overnight — within the expected overnight baseline, no source signature.
- Present
- AQI 28
- Phase
- overnight calm
- Pattern
- traffic typical
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
- 5:52 AM
- Moonset
- 4:08 PM
- In sign
- ♑︎ Capricorn
Heat hardens the dust
Calexico at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: March 3 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, 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.