Weather Tomorrow

Weather Tomorrow in Downey, CA

Extreme Heat WatchUntil Jul 10, 3:00 AM

Extreme Heat Watch issued July 9 at 7:46AM PDT until July 16 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Monitor the latest forecasts and warnings for updates.

Heat AdvisoryUntil Jul 10, 3:00 AM

Heat Advisory issued July 9 at 7:46AM PDT until July 14 at 10:00AM PDT by NWS Los Angeles/Oxnard CA

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Monitor the latest forecasts and warnings for updates.

Friday, July 10, 2026

89°Low 66°FColdHot
Clear

Precip chance

1%

Wind

0-10 mph

Humidity

70%

Feels like

87–68°F

Data source: National Weather Service (NOAA) · Updated just now

Tomorrow by Hour

66°Temperature trend89°
TimeTempConditionRain %Wind
7 AM☽69°FMostly Cloudy
0%
5 mph SSE
8 AM☽68°FMostly Cloudy
0%
5 mph SSE
9 AM☽68°FMostly Cloudy
0%
5 mph SSE
10 AM☽66°FMostly Cloudy
0%
5 mph SSE
11 AM☽66°FMostly Cloudy
0%
5 mph SSE
12 PM☽66°FPatchy Fog
0%
5 mph SE
1 PM66°FPatchy Fog
0%
5 mph SE
2 PM69°FPatchy Fog
0%
5 mph SE
3 PM71°FPatchy Fog
0%
0 mph
4 PM75°FPatchy Fog
0%
0 mph
5 PM77°FPatchy Fog
0%
0 mph
6 PM81°FSunny
0%
5 mph S
7 PM84°FSunny
0%
5 mph S
8 PM84°FSunny
0%
5 mph S
9 PM85°FSunny
0%
10 mph S
10 PM88°FSunny
0%
10 mph S
11 PM89°FSunny
0%
10 mph S
12 AM88°FSunny
1%
10 mph SSW
1 AM☽83°FMostly Clear
1%
10 mph SSW
2 AM☽79°FMostly Clear
1%
10 mph SSW
3 AM☽76°FMostly Clear
1%
5 mph S
4 AM☽73°FMostly Clear
1%
5 mph S
5 AM☽72°FMostly Clear
1%
5 mph S
6 AM☽70°FPatchy Fog
0%
5 mph S

Precipitation Timeline

No significant precipitation expected tomorrow.

What to Wear Tomorrow

Hot — wear breathable, light clothing

Clothing

  • • Light t-shirt or tank top
  • • Shorts or light skirt
  • • Hat for sun protection

Footwear

Sandals or breathable sneakers

Accessories

  • • Sunglasses
  • • Sunscreen

Conditions

High: 89°F

Low: 66°F

Wind: 0-10 mph

Rain: 1%

Enjoy your day!

Best Time to Be Outside Tomorrow

2 PM – 3 PM99

Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)

7a1p7p1a

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Frequently Asked Questions

What is the weather forecast for tomorrow in Downey, CA?
Tomorrow in Downey: High of 89°F, Low of 66°F. Clear with 1% chance of precipitation. Wind 0-10 mph.
Will it rain tomorrow in Downey?
No significant precipitation expected tomorrow.
What should I wear tomorrow in Downey?
With a high of 89°F and low of 66°F, check our "What to Wear" section above for specific clothing recommendations based on temperature, wind, and precipitation.
How accurate is this forecast?
Our forecasts come directly from the National Weather Service (NOAA), which provides some of the most accurate weather predictions available. Tomorrow forecasts are generally 80-90% accurate, with accuracy decreasing the further out you look. Data is refreshed every 30 minutes.