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Rialto, CA

101°F
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Rialto

California

101°
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Rialto, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 PM

102°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
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rain drop 0%
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Sunny
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

RealFeel Shade™99°

Heat Index99°

WindWSW 9 mph

Air QualityPoor

Max UV Index4.7 (Moderate)

Wind Gusts18 mph

Humidity17%

Indoor Humidity17% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling33400 ft

5 PM

101°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

RealFeel Shade™98°

Heat Index98°

WindWSW 10 mph

Air QualityPoor

Max UV Index3.2 (Moderate)

Wind Gusts22 mph

Humidity19%

Indoor Humidity19% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

98°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

RealFeel Shade™95°

Heat Index96°

WindWSW 9 mph

Air QualityPoor

Max UV Index1.9 (Low)

Wind Gusts17 mph

Humidity22%

Indoor Humidity22% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

96°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

RealFeel Shade™94°

Heat Index94°

WindWSW 8 mph

Air QualityPoor

Max UV Index0.9 (Low)

Wind Gusts14 mph

Humidity25%

Indoor Humidity25% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

92°
RealFeel® 89°
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.
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rain drop 0%
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Mostly clear
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

Heat Index91°

WindWSW 8 mph

Air QualityPoor

Wind Gusts10 mph

Humidity34%

Indoor Humidity34% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

88°
RealFeel® 86°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

Heat Index88°

WindWSW 7 mph

Air QualityPoor

Wind Gusts7 mph

Humidity40%

Indoor Humidity40% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

84°
RealFeel® 82°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

Heat Index85°

WindWSW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity46%

Indoor Humidity46% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

80°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

10:00 AM Thursday - 8:00 PM Sunday
alerts

Air Quality Alert

4:00 PM Thursday - 8:00 PM Sunday

Heat Index81°

WindWSW 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity52%

Indoor Humidity52% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Rialto

AccuWeather's hourly forecast for Rialto provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 102° with a RealFeel® of 103°, 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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  • Long Beach, CA
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