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Bayamon, PR Weather Forecast | 5 Day

Updated: Wed Sep 16th 2026 4:00 PM AST

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Scattered Showers

Wed 9-16-26

Scattered Showers with a high of 89°F and a low of 74°F. Rainfall expected to have a 71% chance with an estimated 0.08in. Wind will be moderate, blowing around 13mph on average and gusts of 15.9mph at 11 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 90% at 8 PM and 73% being its lowest at 5 PM. Barometric pressure is its highest of 30.04^inHg at 9 PM, a lowest point of 29.98^inHg at 5 PM with an avg 30.02^inHg.

HI: 89°F
LO: 74°F

Rainfall: 71% | est. 0.08in
Snowfall: 0%

Wind
12.1 mph
Humidity
79% avg.

UV Index
10.7
Air Quality
Good

Sunrise
06:12 AM
Sunset
06:26 PM

Moonrise
11:18 AM
Moonset
10:25 PM
Moon Phase
First Quarter

Scattered Showers

Weather Tomorrow, Thu 9-17-26

Scattered Showers with a high of 87°F and a low of 76°F. Rainfall expected to have a 73% chance with an estimated 0.09in. Wind will be moderate, blowing around 15mph on average and gusts of 20.6mph at 1 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 91% at 9 PM and 58% being its lowest at 2 PM. Barometric pressure is its highest of 30.05^inHg at 9 PM, a lowest point of 29.97^inHg at 3 AM with an avg 30.01^inHg.

HI: 87°F
LO: 76°F

Rainfall: 73% | est. 0.09in
Snowfall: 0%

Wind
14.8 mph
Humidity
80% avg.

UV Index
8.6
Air Quality
Good

Sunrise
06:12 AM
Sunset
06:25 PM

Moonrise
12:15 PM
Moonset
11:17 PM
Moon Phase
First Quarter

Scattered Showers

Fri 9-18-26

Scattered Showers with a high of 89°F and a low of 75°F. There's a moderate 37% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 13mph on average and gusts of 22.4mph at 3 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 92% at 11 PM and 52% being its lowest at 3 PM. Barometric pressure is its highest of 30.04^inHg at 12 AM, a lowest point of 29.94^inHg at 3 PM with an avg 29.99^inHg.

HI: 89°F
LO: 75°F

Rainfall: 37% | est. 0.02in
Snowfall: 0%

Wind
12.3 mph
Humidity
76% avg.

UV Index
11.3
Air Quality
Good

Sunrise
06:12 AM
Sunset
06:24 PM

Moonrise
01:09 PM
Moonset
Does not set today
Moon Phase
First Quarter

Scattered Showers

Sat 9-19-26

Scattered Showers with a high of 88°F and a low of 74°F. There's a moderate 34% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 12mph on average and gusts of 22.8mph at 1 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 93% at 5 AM and 56% being its lowest at 11 AM. Barometric pressure is its highest of 29.99^inHg at 10 PM, a lowest point of 29.9^inHg at 3 PM with an avg 29.95^inHg.

HI: 88°F
LO: 74°F

Rainfall: 34% | est. 0.01in
Snowfall: 0%

Wind
11.6 mph
Humidity
77% avg.

UV Index
10
Air Quality
Good

Sunrise
06:13 AM
Sunset
06:23 PM

Moonrise
01:59 PM
Moonset
12:10 AM
Moon Phase
First Quarter

Scattered Showers

Sun 9-20-26

Scattered Showers with a high of 88°F and a low of 73°F. Rainfall expected to have a 59% chance with an estimated 0.05in. Wind will be moderate, blowing around 12mph on average and gusts of 23mph at 1 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 94% at 5 AM and 52% being its lowest at 3 PM. Barometric pressure is its highest of 29.99^inHg at 11 PM, a lowest point of 29.9^inHg at 3 PM with an avg 29.95^inHg.

HI: 88°F
LO: 73°F

Rainfall: 59% | est. 0.05in
Snowfall: 0%

Wind
11.9 mph
Humidity
78% avg.

UV Index
10.3
Air Quality
Good

Sunrise
06:13 AM
Sunset
06:22 PM

Moonrise
02:45 PM
Moonset
01:04 AM
Moon Phase
Waxing Gibbous

Scattered Showers

Mon 9-21-26

Scattered Showers with a high of 89°F and a low of 74°F. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 13mph on average and gusts of 23.5mph at 2 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 95% at 5 AM and 52% being its lowest at 1 PM. Barometric pressure is its highest of 30.01^inHg at 11 PM, a lowest point of 29.94^inHg at 4 PM with an avg 29.97^inHg.

HI: 89°F
LO: 74°F

Rainfall: 36% | est. 0.01in
Snowfall: 0%

Wind
12.3 mph
Humidity
77% avg.

UV Index
7
Air Quality
TBA

Sunrise
06:13 AM
Sunset
06:22 PM

Moonrise
03:25 PM
Moonset
01:58 AM
Moon Phase
Waxing Gibbous

Bayamon, PR Weather Forecast - 10 Day Detailed

This 5-Day weather forecast is relevant for ZIP codes from 00956 through 00961, accurately covering all areas within Bayamon, PR.

Currently

	85°F	29.96 inHg. Barometer 66% Humidity E 17.6 mph Wind
Patchy Rain Nearby

Full Report

National Outlook

Storms and Heat Hit Central U.S. 09-15 to 09-17

Tue Sep 15th 2026, 8:34am PDT

Read

Rain and Thunderstorms Shake Up the Plains 09-18 to 09-22

Extended Forecast
Tue Sep 15th 2026, 8:35am PDT

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5 Day Forecast Nearby

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