Outdoor conditions in

Port St. John

Florida
Now
  1. 86°Mostly Sunny10% rain68% humidityGusts 12 mph
  2. 86°Mostly Sunny11% rain68% humidityGusts 13 mph
  3. 86°Mostly Sunny12% rain68% humidityGusts 14 mph
  4. 86°Mostly Sunny14% rain65% humidityGusts 15 mph
  5. 87°Mostly Sunny10% rain63% humidityGusts 15 mph
  6. 85°Mostly Sunny12% rain67% humidityGusts 15 mph
  7. 83°Partly Cloudy14% rain72% humidityGusts 13 mph
  8. 82°Partly Cloudy10% rain74% humidityGusts 10 mph
  9. 79°Partly Cloudy11% rain82% humidityGusts 10 mph
  10. 78°Partly Cloudy11% rain88% humidityGusts 9 mph
  11. 78°Partly Cloudy11% rain88% humidityGusts 9 mph
  12. 77°Partly Cloudy11% rain90% humidityGusts 8 mph
  13. 77°Partly Cloudy9% rain90% humidityGusts 8 mph
  14. 77°Partly Cloudy8% rain90% humidityGusts 7 mph
  15. 76°Partly Cloudy6% rain94% humidityGusts 6 mph
  16. 76°Partly Cloudy7% rain94% humidityGusts 5 mph
  17. 76°Partly Cloudy8% rain94% humidityGusts 3 mph
  18. 75°Partly Cloudy9% rain97% humidityGusts 3 mph
  19. 75°Mostly Sunny10% rain97% humidityGusts 3 mph
  20. 75°Mostly Sunny11% rain97% humidityGusts 3 mph
  21. 76°Mostly Sunny12% rain97% humidityGusts 3 mph
  22. 78°Slight Chance Rain Showers15% rain97% humidityGusts 3 mph
  23. 82°Slight Chance Rain Showers18% rain88% humidityGusts 5 mph
  24. 85°Slight Chance Showers And Thunderstorms21% rain77% humidityGusts 6 mph

No suitable complete window was found within these hours. Try a shorter visit or a wider search.

Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
14%
Humidity
63–97%
Wind
15 mph
Fri

Friday carries a thunderstorm chance.

Rain
55%
Humidity
70–100%
Wind
8 mph
Sat

Saturday carries a thunderstorm chance.

Rain
65%
Humidity
77–100%
Wind
35 mph
Sun

Sunday has a real shower chance.

Rain
45%
Humidity
69–90%
Wind
38 mph
Mon

Monday has a real shower chance.

Rain
43%
Humidity
69–87%
Wind
37 mph
  1. 87° / 74°Today looks fairly quiet.14% rain · Humidity 63–97% · Wind 15 mph
  2. 87° / 75°Friday carries a thunderstorm chance.55% rain · Humidity 70–100% · Wind 8 mph
  3. 81° / 71°Saturday carries a thunderstorm chance.65% rain · Humidity 77–100% · Wind 35 mph
  4. 77° / 69°Sunday has a real shower chance.45% rain · Humidity 69–90% · Wind 38 mph
  5. 79° / 68°Monday has a real shower chance.43% rain · Humidity 69–87% · Wind 37 mph

Environmental watch

Air quality + smoke

Air quality

Melbourne area · Updated Thu 12:26 PM
32GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 8:45 AM

Air near ground32 · Good US AQI

Rain, in motion · Past four hours

Port St. John radar

Ready when you areSee what is moving toward Port St. John.

Watch the last four hours of rain, then search any nearby trail, lake, or address.

View the official forecast ↗

Outdoor fire check

Thinking about a backyard fire?

Use extra caution.

There is no lower-concern three-hour stretch in the next 12 hours.

Next 12 hoursChoose a time to see what is driving the concern.
Selected timeNowUse caution

Sustained wind is 10 mph. Thunder is possible.

Humidity
68%
Wind
10 mph
Gusts
12 mph

Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.

About these readingsSources and local limits

Weather

Forecasts, alerts, and radar come from NOAA and the National Weather Service.

Air quality

This reading describes Melbourne area, about 13 miles away. Conditions can differ at this exact spot.

Smoke

Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.

This page represents Port St. John, FL, so conditions can vary from street to street. Environmental data: AirNow · participating air agencies · preliminary real-time US AQI · NOAA Hazard Mapping System · satellite-observed smoke.