Will it rain in San Antonio, PR 00646 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 San Antonio, PR 00646?

The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 5 to Nov 6) come from the NOAA National Blend of Models, with highs of 88°F to 89°F and up to an 81% chance of precipitation. Model guidance this far out often changes.

What time is sunrise and sunset in San Antonio, PR 00646 today?

Sunrise is about 6:23 AM AST and sunset is about 5:54 PM AST (calculated for the center of the area, within a few minutes).

Checked Oct 28, 2026

San Antonio, PR 00646 Weather

Tonight: Scattered Rain Showers, low 76°F. Hourly and 10-day forecast from the National Weather Service. Times are local (AST).

San Antonio, PR 00646 current weather

82°F

Scattered Rain Showers

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

H -- / L 76°

Rip Current Statement in effect
Rain ending around 9 PM

No recent station report. NWS hourly forecast updated 10/28/2026, 4:17 PM PT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Moderate1Possible threat to life or property

Rip Current StatementSan Juan and Vicinity; Northeast; North Central; Northwest; Mayaguez and Vicinity; CulebraUntil Thu 10/29/2026, 1:00 PM AST · NWS San Juan PR

Hourly forecast

NWS, updated 10/28/2026, 4:17 PM PT

Now82°30%
8 PM81°30%
9 PM80°
10 PM79°
11 PM79°
12 AM78°Thu
1 AM78°
2 AM77°
3 AM77°
4 AM76°
5 AM76°
6 AM79°
7 AM82°
8 AM85°
9 AM87°
10 AM89°
11 AM91°
12 PM92°10%
1 PM92°10%
2 PM92°10%
3 PM91°20%
4 PM87°20%
5 PM84°20%
6 PM83°30%
7 PM82°30%
8 PM81°30%
9 PM80°10%
10 PM79°10%
11 PM79°10%
12 AM78°10%Fri
1 AM78°10%
2 AM77°10%
3 AM77°
4 AM76°
5 AM76°
6 AM78°
7 AM82°
8 AM84°
9 AM87°
10 AM88°
11 AM90°
12 PM91°50%
1 PM91°50%
2 PM91°50%
3 PM90°50%
4 PM86°50%
5 PM84°50%
6 PM82°

10-day forecast

Tap a day for details

Today10/2830% chance of precipitationLow 76°High
Tonight: Scattered rain showers. Partly cloudy, with a low around 76. Southeast wind around 5 mph. Chance of precipitation is 30%.
Scattered Rain Showers
Thu10/2930% chance of precipitationLow 76°High 92°
Thursday: Isolated rain showers. Mostly sunny. High near 92, with temperatures falling to around 84 in the afternoon. Heat index values as high as 107. East southeast wind 5 to 14 mph. Chance of precipitation is 20%.
Thursday Night: Scattered rain showers. Partly cloudy, with a low around 76. East southeast wind 5 to 8 mph. Chance of precipitation is 30%.
Isolated Rain Showers
Fri10/3050% chance of precipitationLow 76°High 91°
Friday: Scattered rain showers. Mostly sunny, with a high near 91. Heat index values as high as 106. East southeast wind 6 to 14 mph. Chance of precipitation is 50%.
Friday Night: Mostly clear, with a low around 76. East southeast wind 5 to 10 mph.
Scattered Rain Showers
Sat10/3150% chance of precipitationLow 77°High 90°
Saturday: Isolated rain showers before noon, then scattered showers and thunderstorms. Mostly sunny, with a high near 90. East wind 5 to 16 mph. Chance of precipitation is 50%.
Saturday Night: Clear, with a low around 77. East wind 5 to 13 mph.
Scattered Showers And Thunderstorms
Sun11/150% chance of precipitationLow 77°High 90°
Sunday: Isolated rain showers before noon, then scattered showers and thunderstorms. Mostly sunny, with a high near 90. East wind 5 to 12 mph. Chance of precipitation is 50%.
Sunday Night: Mostly clear, with a low around 77. East southeast wind 5 to 9 mph.
Scattered Showers And Thunderstorms
Mon11/260% chance of precipitationLow 76°High 90°
Monday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Monday Night: Isolated rain showers. Partly cloudy, with a low around 76.
Mostly Sunny then Chance Showers And Thunderstorms
Tue11/370% chance of precipitationLow 76°High 90°
Tuesday: Isolated rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Tuesday Night: Isolated rain showers. Partly cloudy, with a low around 76.
Chance Showers And Thunderstorms
Wed11/470% chance of precipitationLow High 90°
Wednesday: Isolated rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 90.
Chance Showers And Thunderstorms
Model blend
Thu11/5Model blend81% chance of precipitationLow 77°High 88°
Thursday: Rain likely. High near 88°. Low that night near 77°. About 0.21 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 blend73% chance of precipitationLow 78°High 89°
Friday: Rain likely. High near 89°. Low that night near 78°. About 0.19 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 18.431, -66.282 from the NWS SJU office, updated 10/28/2026, 4:17 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station TJIG (San Juan/Dominicci Arpt, 12 mi), model run 10/28/2026, 4:00 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

Now82°Scattered Rain Showers30%2 mph
8 PM81°Scattered Rain Showers30%2 mph
9 PM80°Isolated Rain Showers8%3 mph
10 PM79°Isolated Rain Showers8%3 mph
11 PM79°Isolated Rain Showers8%5 mph
12 AM78°Isolated Rain Showers6%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Frequently asked questions

Will it rain in San Antonio, PR 00646 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 San Antonio, PR 00646?: The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 5 to Nov 6) come from the NOAA National Blend of Models, with highs of 88°F to 89°F and up to an 81% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in San Antonio, PR 00646 today?: Sunrise is about 6:23 AM AST and sunset is about 5:54 PM AST (calculated for the center of the area, within a few minutes).

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

UV and air quality forecast

EPA and AirNow

UV index today (Dorado): 9Very high

UV index guide · Air quality

Drought

By county

Dorado Municipio, week of 10/20/2026

6% 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: 6:23 AM
Sunset: 5:54 PM
Daylight: 11 hr 31 min
Moon: Waning Gibbous 91% lit

First light (civil dawn): 6 AM
Last light (civil dusk): 6:16 PM
Moonrise: 7:55 PM
Moonset: 8:47 AM

San Antonio 00646 climate

Climate

Monthly normal temperatures and precipitation from NOAA climate stations.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

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About this data

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