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Fontana, CA

87°F
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Fontana

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

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Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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10 AM

88°
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.
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rain drop 0%
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Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™87°

Heat Index88°

WindWNW 4 mph

Air QualityPoor

Max UV Index4.0 (Moderate)

Wind Gusts5 mph

Humidity40%

Indoor Humidity40% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover16%

Visibility10 mi

Cloud Ceiling34000 ft

11 AM

92°
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%
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Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™90°

Heat Index92°

WindSW 6 mph

Air QualityFair

Max UV Index5.8 (High)

Wind Gusts7 mph

Humidity36%

Indoor Humidity36% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

96°
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
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindSW 8 mph

Air QualityFair

Max UV Index7.9 (Very High)

Wind Gusts9 mph

Humidity30%

Indoor Humidity30% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

99°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™95°

Heat Index98°

WindWSW 10 mph

Air QualityFair

Max UV Index8.8 (Very High)

Wind Gusts14 mph

Humidity26%

Indoor Humidity26% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

101°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™97°

Heat Index100°

WindWSW 13 mph

Air QualityFair

Max UV Index7.9 (Very High)

Wind Gusts20 mph

Humidity23%

Indoor Humidity23% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

102°
RealFeel® 102°
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
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™98°

Heat Index101°

WindWSW 15 mph

Air QualityFair

Max UV Index5.8 (High)

Wind Gusts22 mph

Humidity22%

Indoor Humidity22% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

101°
RealFeel® 100°
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
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™97°

Heat Index100°

WindWSW 16 mph

Air QualityPoor

Max UV Index4.0 (Moderate)

Wind Gusts24 mph

Humidity23%

Indoor Humidity23% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

99°
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
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™95°

Heat Index98°

WindWSW 16 mph

Air QualityPoor

Max UV Index2.5 (Moderate)

Wind Gusts27 mph

Humidity24%

Indoor Humidity24% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

97°
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
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindWSW 15 mph

Air QualityPoor

Max UV Index1.5 (Low)

Wind Gusts21 mph

Humidity27%

Indoor Humidity27% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover24%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

93°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Tuesday - 8:00 PM Saturday

RealFeel Shade™89°

Heat Index92°

WindWSW 14 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts16 mph

Humidity32%

Indoor Humidity32% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

91°
RealFeel® 87°
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

Heat Index90°

WindWSW 10 mph

Air QualityPoor

Wind Gusts12 mph

Humidity36%

Indoor Humidity36% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

88°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

Heat Index88°

WindWSW 8 mph

Air QualityPoor

Wind Gusts9 mph

Humidity40%

Indoor Humidity40% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

85°
RealFeel® 83°
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
Clear

Heat Index85°

WindSW 7 mph

Air QualityPoor

Wind Gusts7 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

83°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

Heat Index84°

WindSW 6 mph

Air QualityPoor

Wind Gusts6 mph

Humidity48%

Indoor Humidity48% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Fontana

AccuWeather's hourly forecast for Fontana provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 88° with a RealFeel® of 94°, mostly 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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