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Northeast weather to feel more like Thanksgiving than Memorial Day. See the temp forecast. Chevron right

Port St. John, FL

91°F
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Port St. John

Florida

91°
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Port St. John, FL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 PM

90°
RealFeel® 95°
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 47%
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Partly sunny
alerts

Rip Current Statement

2:41 AM Friday - 4:00 AM Saturday

RealFeel Shade™93°

Heat Index97°

WindE 10 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts17 mph

Humidity54%

Indoor Humidity54% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover33%

Visibility10 mi

Cloud Ceiling34000 ft

7 PM

88°
RealFeel® 91°
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 29%
Chevron down
Mostly sunny
alerts

Rip Current Statement

2:41 AM Friday - 4:00 AM Saturday

RealFeel Shade™91°

Heat Index93°

WindESE 10 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts21 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover24%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

85°
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 1%
Chevron down
Mostly sunny
alerts

Rip Current Statement

2:41 AM Friday - 4:00 AM Saturday

RealFeel Shade™89°

Heat Index91°

WindESE 9 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts17 mph

Humidity64%

Indoor Humidity64% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover22%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

83°
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 1%
Chevron down
Partly cloudy
alerts

Rip Current Statement

2:41 AM Friday - 4:00 AM Saturday

Heat Index88°

WindESE 8 mph

Air QualityFair

Wind Gusts15 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover33%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

80°
RealFeel® 84°
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 1%
Chevron down
Partly cloudy
alerts

Rip Current Statement

2:41 AM Friday - 4:00 AM Saturday

Heat Index84°

WindSE 7 mph

Air QualityFair

Wind Gusts13 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover43%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

77°
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 1%
Chevron down
Partly cloudy
alerts

Rip Current Statement

2:41 AM Friday - 4:00 AM Saturday

WindSE 7 mph

Air QualityFair

Wind Gusts12 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Port St. John

AccuWeather's hourly forecast for Port St. John provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 90° with a RealFeel® of 95°, partly sunny with a 47% 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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World North America United States Florida Port St. John

Weather Near Port St. John:

  • Deltona, FL
  • Melbourne, FL
  • Orlando, FL
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