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Port St. Lucie, Florida · now

77°

Partly Cloudy

Feels
79°
High / Low
87° / 70°
Wind
25 mph SW
Humidity
94%

Tomorrow· Thursday86°/70°· Mostly Sunny then Slight Chance Showers And Thunderstorms

cooler than yesterday at this time

No precipitation expected in the next 1.6 hours.

Current weather and 7-day forecast for Port St. Lucie, Florida, sourced directly from the National Weather Service. Expect partly sunny then slight chance showers and thunderstorms today. Today's high is 87° with a low near 70°.

What to wear today

Rain jacket and umbrella

Plan for showers (70%). Skip cotton or anything that dries slow.

Temperature · next 24 hours

65° 80° 90° 86° 71° 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM 2 AM 5 AM

Next 24 hours

  1. 8 AM

    76°

    3%

  2. 10 AM

    82°

    5%

  3. 12 PM

    84°

    14%

  4. 2 PM

    85°

    66%

  5. 4 PM

    86°

    62%

  6. 6 PM

    83°

    41%

  7. 8 PM

    79°

    15%

  8. 10 PM

    76°

    4%

  9. 12 AM

    75°

    1%

  10. 2 AM

    73°

    2%

  11. 4 AM

    72°

    1%

  12. 6 AM

    71°

    1%

Live radar

View full radar →

7 days

  1. Today 5/13 Partly Sunny then Slight Chance Showers And Thunderstorms 70% 87° · 70°
  2. Thu 5/14 Mostly Sunny then Slight Chance Showers And Thunderstorms 17% 86° · 70°
  3. Fri 5/15 Sunny then Slight Chance Showers And Thunderstorms 15% 87° · 72°
  4. Sat 5/16 Chance Showers And Thunderstorms 28% 87° · 73°
  5. Sun 5/17 Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 32% 87° · 74°
  6. Mon 5/18 Chance Showers And Thunderstorms 37% 86° · 74°
  7. Tue 5/19 Chance Showers And Thunderstorms 40% 86° · 73°
Extended outlook days 8–16
  1. Wed 5/20 Partly Cloudy 19% 86° · 76°
  2. Thu 5/21 Partly Cloudy 34% 85° · 74°
  3. Fri 5/22 Cloudy 36% 89° · 73°
  4. Sat 5/23 Cloudy 33% 86° · 74°
  5. Sun 5/24 Cloudy 40% 84° · 75°
  6. Mon 5/25 Drizzle 49% 84° · 75°
  7. Tue 5/26 Drizzle 57% 83° · 76°
  8. Wed 5/27 Drizzle 46% 84° · 75°
  9. Thu 5/28 Drizzle 56% 84° · 75°

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

  • RunTomorrow 6 AM

    warm at 71°F · calm wind · no rain expected · rain should clear by 6 AM · pollen high today — allergy sufferers, take note

    Excellent88 / 100
  • BikeTomorrow 6 AM

    comfortable at 71°F · calm wind · no rain expected · rain should clear by 6 AM · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Golf9 AM

    comfortable at 79°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Picnic9 AM

    comfortable at 79°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100

Climate normals

What weather to expect in Port St. Lucie

Port St. Lucie in May typically averages 90° highs and 72° lows, with about 20 days of rain. The hottest stretch is May (average high 90°); the coldest is January (average low 54°). September is the wettest month on average.

MonthAvg highAvg lowRainy days
Jan72°54°11
Feb77°57°10
Mar80°62°16
Apr82°68°13
May90°72°20
Jun88°74°28
Jul90°75°24
Aug90°76°28
Sep87°74°29
Oct82°72°23
Nov80°63°11
Dec77°61°12

Normals derived from the past two years of observations via Open-Meteo's historical archive.

Forecast details

NWS gridpoint
MLB 71,18
Radar station
KMLB
Time zone
America/New_York
Coordinates
27.294, -80.350