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Guaynabo, PR 00966 Weather

Today: Scattered Rain Showers, high 90°F, low 80°F. Hourly and 10-day forecast from the National Weather Service. Times are local (AST).

Guaynabo, PR 00966 current weather

88°F

Isolated Rain Showers

Forecast for this hour. No recent report from a nearby station.

H 90° / L 80°

No recent station report. NWS hourly forecast updated 10/27/2026, 11:56 PM PT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Moderate1Possible threat to life or property

Hourly forecast

NWS, updated 10/27/2026, 11:56 PM PT

  1. Now88°10%
  2. 11 AM89°10%
  3. 12 PM90°40%
  4. 1 PM90°40%
  5. 2 PM90°40%
  6. 3 PM89°30%
  7. 4 PM87°30%
  8. 5 PM85°30%
  9. 6 PM84°40%
  10. 7 PM84°40%
  11. 8 PM83°40%
  12. 9 PM83°
  13. 10 PM82°
  14. 11 PM82°
  15. Thu12 AM81°
  16. 1 AM81°
  17. 2 AM81°
  18. 3 AM80°10%
  19. 4 AM80°10%
  20. 5 AM80°10%
  21. 6 AM82°20%
  22. 7 AM84°20%
  23. 8 AM86°20%
  24. 9 AM87°10%
  25. 10 AM88°10%
  26. 11 AM89°10%
  27. 12 PM90°30%
  28. 1 PM90°30%
  29. 2 PM90°30%
  30. 3 PM89°20%
  31. 4 PM87°20%
  32. 5 PM85°20%
  33. 6 PM84°20%
  34. 7 PM84°20%
  35. 8 PM83°20%
  36. 9 PM83°20%
  37. 10 PM82°20%
  38. 11 PM82°20%
  39. Fri12 AM81°30%
  40. 1 AM81°30%
  41. 2 AM81°30%
  42. 3 AM80°30%
  43. 4 AM80°30%
  44. 5 AM80°30%
  45. 6 AM81°10%
  46. 7 AM83°10%
  47. 8 AM84°10%
  48. 9 AM86°10%

10-day forecast

Tap a day for details

  • Today10/2840% chance of precipitationLow 80°High 90°

    Today: Scattered rain showers. Mostly sunny. High near 90, with temperatures falling to around 85 in the afternoon. Heat index values as high as 103. East southeast wind 8 to 16 mph. Chance of precipitation is 40%.

    Tonight: Scattered rain showers. Partly cloudy, with a low around 80. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.

    Scattered Rain Showers
  • Thu10/2930% chance of precipitationLow 80°High 90°

    Thursday: Scattered rain showers. Mostly sunny. High near 90, with temperatures falling to around 85 in the afternoon. Heat index values as high as 102. East southeast wind 6 to 14 mph. Chance of precipitation is 30%.

    Thursday Night: Scattered rain showers. Partly cloudy, with a low around 80. East southeast wind 3 to 9 mph. Chance of precipitation is 30%.

    Scattered Rain Showers
  • Fri10/3040% chance of precipitationLow 80°High 88°

    Friday: Scattered rain showers. Mostly sunny, with a high near 88. East wind 5 to 15 mph. Chance of precipitation is 40%.

    Friday Night: Isolated rain showers. Partly cloudy, with a low around 80. East southeast wind 5 to 9 mph. Chance of precipitation is 20%.

    Scattered Rain Showers
  • Sat10/3160% chance of precipitationLow 80°High 87°

    Saturday: Isolated rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. East wind 5 to 14 mph. Chance of precipitation is 60%.

    Saturday Night: Mostly clear, with a low around 80. East wind 5 to 9 mph.

    Chance Showers And Thunderstorms
  • Sun11/150% chance of precipitationLow 80°High 87°

    Sunday: Scattered rain showers before noon, then scattered showers and thunderstorms. Partly sunny, with a high near 87. East wind 6 to 13 mph. Chance of precipitation is 50%.

    Sunday Night: Isolated rain showers. Partly cloudy, with a low around 80.

    Scattered Rain Showers
  • Mon11/260% chance of precipitationLow 79°High 87°

    Monday: Isolated rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 60%.

    Monday Night: Scattered rain showers. Partly cloudy, with a low around 79. Chance of precipitation is 30%.

    Chance Showers And Thunderstorms
  • Tue11/370% chance of precipitationLow 79°High 87°

    Tuesday: Isolated rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 70%.

    Tuesday Night: Scattered rain showers. Partly cloudy, with a low around 79.

    Chance Showers And Thunderstorms
  • Wed11/4Model blend88% chance of precipitationLow 77°High 88°

    Wednesday: Rain likely. High near 88°. Low that night near 77°. About 0.28 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Thu11/5Model blend78% chance of precipitationLow 77°High 88°

    Thursday: Rain likely. High near 88°. Low that night near 77°. About 0.23 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blend71% chance of precipitationLow High 89°

    Friday: Rain likely. High near 89°. About 0.16 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 18.401, -66.119 from the NWS SJU office, updated 10/27/2026, 11:56 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station TJIG (San Juan/Dominicci Arpt, 4 mi), model run 10/27/2026, 7:00 PM AST

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now88°Isolated Rain Showers10%8 mph
  2. 11 AM89°Isolated Rain Showers10%10 mph
  3. 12 PM90°Scattered Rain Showers40%13 mph
  4. 1 PM90°Scattered Rain Showers40%14 mph
  5. 2 PM90°Scattered Rain Showers40%16 mph
  6. 3 PM89°Scattered Rain Showers30%15 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow
75°85°95°0%100%WedThuFriSatSunMonTue90°82°90°80°88°80°87°80°87°80°87°80°87°79°

Line: temperature °F. Bars: chance of precipitation.

  1. WedNow88°10%8
  2.  11 AM89°10%10
  3.  12 PM90°40%13
  4.  1 PM90°40%14
  5.  2 PM90°40%16
  6.  3 PM89°30%15
  7.  4 PM87°30%14
  8.  5 PM85°30%13
  9.  6 PM84°40%10
  10.  7 PM84°40%8
  11.  8 PM83°40%7
  12.  9 PM83°2%6
  13.  10 PM82°2%6
  14.  11 PM82°2%5
  15. Thu 10/2912 AM81°9%6
  16.  1 AM81°9%6
  17.  2 AM81°9%6
  18.  3 AM80°10%6
  19.  4 AM80°10%6
  20.  5 AM80°10%6
  21.  6 AM82°20%6
  22.  7 AM84°20%6
  23.  8 AM86°20%7
  24.  9 AM87°10%8
  25.  10 AM88°10%9
  26.  11 AM89°10%12
  27.  12 PM90°30%13
  28.  1 PM90°30%14
  29.  2 PM90°30%14
  30.  3 PM89°20%13
  31.  4 PM87°20%13
  32.  5 PM85°20%12
  33.  6 PM84°20%9
  34.  7 PM84°20%8
  35.  8 PM83°20%7
  36.  9 PM83°20%6
  37.  10 PM82°20%6
  38.  11 PM82°20%6
  39. Fri 10/3012 AM81°30%6
  40.  1 AM81°30%5
  41.  2 AM81°30%5
  42.  3 AM80°30%5
  43.  4 AM80°30%3
  44.  5 AM80°30%3
  45.  6 AM81°10%5
  46.  7 AM83°10%6
  47.  8 AM84°10%7
  48.  9 AM86°10%8
  49.  10 AM87°10%9
  50.  11 AM87°10%12
  51.  12 PM88°40%13
  52.  1 PM88°40%15
  53.  2 PM88°40%15
  54.  3 PM87°40%14
  55.  4 PM86°40%13
  56.  5 PM84°40%10
  57.  6 PM83°20%9
  58.  7 PM83°20%8
  59.  8 PM82°20%7
  60.  9 PM82°20%6
  61.  10 PM82°20%5
  62.  11 PM81°20%5
  63. Sat 10/3112 AM81°20%5
  64.  1 AM81°20%5
  65.  2 AM81°20%5
  66.  3 AM80°20%5
  67.  4 AM80°20%5
  68.  5 AM80°20%5
  69.  6 AM81°20%5
  70.  7 AM83°20%5
  71.  8 AM84°20%6
  72.  9 AM85°20%7
  73.  10 AM86°20%8
  74.  11 AM86°20%9
  75.  12 PM87°60%12
  76.  1 PM87°60%13
  77.  2 PM87°60%14
  78.  3 PM86°60%13
  79.  4 PM85°60%13
  80.  5 PM84°60%12
  81.  6 PM83°3%9
  82.  7 PM82°3%8
  83.  8 PM82°3%7
  84.  9 PM82°3%6
  85.  10 PM81°3%6
  86.  11 PM81°3%6
  87. Sun 11/112 AM81°3%5
  88.  1 AM81°3%5
  89.  2 AM80°3%5
  90.  3 AM80°3%5
  91.  4 AM80°3%5
  92.  5 AM80°3%6
  93.  6 AM80°30%6
  94.  7 AM82°30%7
  95.  8 AM83°30%7
  96.  9 AM85°30%8
  97.  10 AM86°30%9
  98.  11 AM86°30%10
  99.  12 PM87°50%12
  100.  1 PM87°50%13
  101.  2 PM87°50%13
  102.  3 PM86°50%13
  103.  4 PM84°50%12
  104.  5 PM84°50%10
  105.  6 PM83°7%9
  106.  7 PM82°7%8
  107.  8 PM82°7%7
  108.  9 PM82°7%7
  109.  10 PM81°7%6
  110.  11 PM81°7%6
  111. Mon 11/212 AM81°7%6
  112.  1 AM81°7%6
  113.  2 AM80°7%6
  114.  3 AM80°7%5
  115.  4 AM80°7%5
  116.  5 AM80°7%5
  117.  6 AM80°7%5
  118.  7 AM82°7%6
  119.  8 AM83°7%6
  120.  9 AM85°7%8
  121.  10 AM86°7%9
  122.  11 AM86°7%12
  123.  12 PM87°60%13
  124.  1 PM87°60%14
  125.  2 PM87°60%15
  126.  3 PM86°60%15
  127.  4 PM84°60%14
  128.  5 PM83°60%12
  129.  6 PM82°30%10
  130.  7 PM82°30%9
  131.  8 PM81°30%7
  132.  9 PM81°30%7
  133.  10 PM81°30%6
  134.  11 PM80°30%6
  135. Tue 11/312 AM80°30%6
  136.  1 AM80°30%6
  137.  2 AM80°30%6
  138.  3 AM79°30%6
  139.  4 AM79°30%6
  140.  5 AM79°30%6
  141.  6 AM80°10%6
  142.  7 AM81°10%6
  143.  8 AM83°10%6
  144.  9 AM84°10%6
  145.  10 AM85°10%6
  146.  11 AM86°10%6
  147.  12 PM87°70%6
  148.  1 PM87°70%6
  149.  2 PM87°70%6
  150.  3 PM86°70%5
  151.  4 PM84°70%5
  152.  5 PM83°70%3
  153.  6 PM82°30%2
  154.  7 PM82°30%1
  155.  8 PM81°30%1
  156.  9 PM81°30%1

Temperature °F · chance of precipitation · wind in mph

NWS hourly forecast updated 10/27/2026, 11:56 PM PT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Puerto Rico hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):No risk area over this location in the next 3 days
  • Expected precipitation, next 7 days: Less than 0.01 in
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

Drought

By county

Guaynabo Municipio, week of 10/20/2026

80% of the county is in moderate drought or worse.

Tides nearby

NOAA tide stations

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise
6:22 AM
Sunset
5:53 PM
Daylight
11 hr 31 min
Moon
Waning Gibbous 93% lit
First light (civil dawn)
6 AM
Last light (civil dusk)
6:16 PM
Moonrise
7:55 PM
Moonset
8:46 AM

Guaynabo 00966 climate

Climate

Monthly normal temperatures and precipitation from NOAA climate stations.

Other places nearby

Data sources

See something wrong? Request a correction

Frequently asked questions

What is the high temperature today in Guaynabo, PR 00966?
The National Weather Service forecast for today calls for a high near 90°F. Scattered Rain Showers.
Will it rain in Guaynabo, PR 00966 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Guaynabo, PR 00966?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 88°F to 89°F and up to an 88% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Guaynabo, PR 00966 today?
Sunrise is about 6:22 AM AST and sunset is about 5:53 PM AST (calculated for the center of the area, within a few minutes).

About this data

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