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El Niño is officially underway. Here's what it means for the weather into 2027.

Severe weather to hammer eastern, central US through the weekend. See the forecast.

Onyx, CA

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Onyx, CA Weather

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8 PM

89°

RealFeel® 85°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Sunny

Heat Advisory

11:00 AM Thursday - 11:00 PM Tuesday

RealFeel Shade™85°

Heat Index86°

WindW 16 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts17 mph

Humidity23%

Indoor Humidity23% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

85°

RealFeel® 81°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Heat Advisory

11:00 AM Thursday - 11:00 PM Tuesday

Heat Index83°

WindWNW 14 mph

Air QualityFair

Wind Gusts15 mph

Humidity26%

Indoor Humidity26% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

82°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Heat Advisory

11:00 AM Thursday - 11:00 PM Tuesday

Heat Index80°

WindWNW 13 mph

Air QualityFair

Wind Gusts14 mph

Humidity28%

Indoor Humidity28% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

79°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Heat Advisory

11:00 AM Thursday - 11:00 PM Tuesday

WindWNW 10 mph

Air QualityFair

Wind Gusts12 mph

Humidity31%

Indoor Humidity31% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Onyx

AccuWeather's hourly forecast for Onyx provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 89° with a RealFeel® of 85°, sunny with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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