REST OF Tonight Partly cloudy with isolated showers early in the
evening, then variably cloudy with scattered showers after midnight.
Lows 80 lower elevations ranging to 73 higher elevations. South
winds up to 5 mph early in the evening becoming light. Chance of
rain 40 percent.
Sun Partly cloudy in the morning then becoming variably
cloudy. Isolated showers in the morning, then scattered showers
early in the afternoon. showers and scattered thunderstorms late in
the afternoon. Highs 90 lower elevations ranging to 84 higher
elevations. East winds up to 5 mph. Chance of rain 80 percent.
San Juan, PR temperatures for today from to .
The following chart reports hourly San Juan, PR temperature today (). .
San Juan, PR humidity today from on until .
The following chart shows hourly San Juan, PR humidity today (). The lowest humidity reading has been , while the highest recorded humidity is .
San Juan, PR barometric pressure today from on until .
The following chart outlines hourly San Juan, PR barometric pressure today (). .
San Juan, PR wind speeds today from on until .
The following chart displays hourly San Juan, PR wind speed today (). .
San Juan, PR wind gusts today from on until .
The following chart provides hourly San Juan, PR wind gusts today (). .
San Juan, PR rain amount today from on until .
The following chart reports hourly San Juan, PR precipitation today (). .
San Juan, PR dew points today from on until .
The following chart displays hourly San Juan, PR dew points today (). The lowest dew point reading has been , while the highest dew point is .
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The "Approx. Precipitation / Rain Total" is calculated in whole based on the last measurement from each hour reported - which is accumulative and reset at the beginning of each hour - ideally. However, some stations reset at the wrong time, such as a few minutes after the hour. We have tried to account for this issue. Most gauges report multiple times per hour. For example, a measurement of precipitation at 8:15am could be 0.04 in. of water - then when a measurement is taken at 8:30am might be 0.06 in. - and at 8:56am might be 0.08 in. So, the accumulative total for that hour would be 0.08 in. - not calculated together to equal 0.18 in. of precipitation. Finally, each hourly total for the day is summed to provide the "Approx. Precipitation / Rain Total" figure.
One other note: if the total is 0, but there was obviously rain - then the instrument is not properly distributing its data from the station. The issue could be temporary or permanent.