Current Conditions

Guaynabo, Guaynabo

78°F26°C
Drizzle

Wind

ESE 5 mph8 km/h

Humidity

87%

Cloud Cover

34%

As of Thursday, July 23, 2026 at 11:57 PM AST

Today's Outlook

Night

Partly cloudy, with a low around 76°F24°C. Light wind from the E around 5 mph9 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24DrizzleHigh 87°F31°CFeels 93°F34°CLow 76°F24°CPrecip 0.02 in0.5 mm22%Cloud 37%Wind E 8 mph13 km/hFriday: Partly cloudy and hot, with a high of 87°F31°C and morning low of 81°F27°C — feels like 93°F34°C. Breezy from the E at 10 to 11 mph16 to 18 km/h. 22% chance of drizzle in the afternoon. Heavy, humid air. Friday Night: Partly cloudy, with a low around 76°F24°C. Light wind from the E around 5 mph9 km/h.
SaturdayJul 25ShowersHigh 88°F31°CFeels 97°F36°CLow 78°F25°CPrecip 0.09 in2.3 mm87%Cloud 38%Wind E 8 mph13 km/hSaturday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 81°F27°C — feels like 97°F36°C. Breezy from the E at 11 to 12 mph17 to 19 km/h. 87% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 78°F25°C. Light wind from the ENE around 6 mph10 km/h. 28% chance of drizzle before dawn.
SundayJul 26ShowersHigh 87°F30°CFeels 94°F35°CLow 77°F25°CPrecip 0.09 in2.2 mm60%Cloud 31%Wind E 7 mph12 km/hSunday: Partly cloudy and hot, with a high of 87°F30°C and morning low of 80°F27°C — feels like 95°F35°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 60% chance of showers throughout the day. Heavy, humid air. Sunday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the E around 6 mph9 km/h. 20% chance of drizzle overnight.
MondayJul 27ShowersHigh 85°F30°CFeels 93°F34°CLow 76°F24°CPrecip 0.15 in3.8 mm84%Cloud 42%Wind E 6 mph10 km/hMonday: Partly cloudy and warm, with a high of 85°F30°C and morning low of 79°F26°C — feels like 93°F34°C. Breezy from the E at 8 mph12 km/h. 84% chance of showers throughout the day. Heavy, humid air. Monday Night: Partly cloudy, with a low around 76°F24°C. Light wind from the E around 5 mph7 km/h. 22% chance of drizzle in the evening.
TuesdayJul 28ShowersHigh 87°F30°CFeels 95°F35°CLow 76°F25°CPrecip 0.11 in2.7 mm77%Cloud 58%Wind E 7 mph11 km/hTuesday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 80°F27°C — feels like 95°F35°C. Breezy from the ESE at 9 to 10 mph14 to 16 km/h. 77% chance of showers throughout the day. Heat risk in the afternoon. Tuesday Night: Mostly cloudy, with a low around 76°F25°C. Light wind from the E around 5 mph9 km/h. 16% chance of drizzle throughout the night.
WednesdayJul 29Light RainHigh 86°F30°CFeels 95°F35°CLow 78°F25°CPrecip 0.08 in2 mm78%Cloud 73%Wind E 9 mph15 km/hWednesday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 81°F27°C — feels like 95°F35°C. Breezy from the ESE at 11 to 12 mph18 to 20 km/h. 78% chance of light rain throughout the day. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 78°F25°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. 18% chance of drizzle overnight.
ThursdayJul 30DrizzleHigh 87°F30°CFeels 94°F34°CLow 78°F26°CPrecip 0.03 in0.7 mm25%Cloud 64%Wind E 10 mph16 km/hThursday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 81°F27°C — feels like 93°F34°C. Breezy from the E at 12 to 13 mph19 to 21 km/h. 25% chance of drizzle around midday. Heavy, humid air. Thursday Night: Mostly cloudy, with a low around 78°F26°C. Breezy from the E at 8 mph13 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 18.3575°N, 66.1110°W·Elevation: 47m·Timezone: America/Puerto_Rico·Population: 81,360