Los Alamos, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Los Alamos weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——79°57°—
- MondayJul 6Foggy——75°54°-4°
- TuesdayJul 7Foggy——85°53°+10°
- WednesdayJul 8Overcast——90°55°+5°
- ThursdayJul 9Mostly Clear——96°57°+6°
- FridayJul 10Mostly Clear——96°58°0°
- SaturdayJul 11Overcast——97°61°+1°
AQI 34 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.68 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 10.6 µg/m³ (AQI 54) with a 0.68 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.68
- 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
- 11:18 PM
- Moonset
- 11:20 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Los Alamos at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: March 15 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 93440
16-Day Forecast — Los Alamos
- Sun78°58°2%
- Mon75°54°0%
- Tue85°53°1%
- Wed90°55°0%
- Thu96°57°0%
- Fri96°58°0%
- Sat97°61°0%
- Sun97°64°1%
- Mon102°65°7%
- Tue96°66°1%
- Wed100°71°1%
- Thu101°72°0%
- Fri111°75°0%
- Sat117°82°6%
- Sun104°71°5%
- Mon98°62°6%
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 Los Alamos
- 93440