Barometric pressure in Rio Grande
Over the past day, pressure has been rising slowly. A rise of 2 hPa since this time yesterday. It keeps rising until tomorrow morning.
Sea level reading, as of 14:00 local time.
The past week and the days ahead
The shaded part shows the days already gone. The thicker line is the forecast.
The week ahead
Each day at a glance: how far pressure moves, and the low and high it reaches.
Rises steadily through the day.
13° / 8°low 1022 · high 1026 hPa
Eases down slowly through the day.
11° / 7°low 1025 · high 1028 hPa
Falls quickly, most of it in the afternoon.
12° / 6°low 1020 · high 1025 hPa
Falls very rapidly through the day.
19° / 10°low 1011 · high 1020 hPa
Falls steadily through the day.
20° / 15°30.9 mmlow 1006 · high 1010 hPa
Falls first, then climbs in the evening.
21° / 14°6.9 mmlow 1002 · high 1009 hPa
Rises quickly, most of it overnight.
15° / 13°low 1009 · high 1016 hPa
Hour by hour
| Hour | Weather and temperature | Rain (mm) | Pressure (hPa) |
|---|---|---|---|
| 00:00 | 9° | 1022 | |
| 01:00 | 9° | 1022 | |
| 02:00 | 8° | 1023 | |
| 03:00 |  8° | 1023 | |
| 04:00 |  8° | 1022 | |
| 05:00 | 8° | 1022 | |
| 06:00 |  8° | 1022 | |
| 07:00 |  8° | 1023 | |
| 08:00 | 8° | 1024 | |
| 09:00 | 9° | 1024 | |
| 10:00 | 10° | 1024 | |
| 11:00 | 12° | 1024 | |
| 12:00 | 13° | 1024 | |
| 13:00 | 12° | 1024 | |
| 14:00 | 11° | 1024 | |
| 15:00 | 10° | 1024 | |
| 16:00 | 10° | 1024 | |
| 17:00 | 10° | 1025 | |
| 18:00 | 10° | 1025 | |
| 19:00 | 10° | 1025 | |
| 20:00 | 10° | 1026 | |
| 21:00 | 9° | 1026 | |
| 22:00 | 9° | 1026 | |
| 23:00 | 9° | 1026 |
Of the seven days, Wednesday moves most: down 9 hPa.
Pressure tops out near 1028 hPa tomorrow morning, and falls after that.
Rio Grande is at sea level, so a barometer there reads about the same as the sea-level figure.
The hours already past are the model's record of each hour as it passed, anchored to real observations, though not a reading from an instrument in Rio Grande.
Cities nearby
Open one to see its pressure, or search for your own city at the top of the page.
Wondering how clean the air is? See today's air quality in Rio Grande, on our sister site 
airindex.today.
Common questions
What is a normal barometric pressure?
Near 1013 hPa at sea level; the exact standard figure, 1013.25 hPa, is the same as 760 mmHg, 29.92 inHg or 101.3 kPa. Anything between roughly 1000 and 1025 hPa is ordinary. Which way it is going matters far more than the number itself.
Why does my own barometer show a different number?
Usually altitude. Weather services correct readings to what they would be at sea level, so that cities can be compared. Rio Grande is at sea level, so there is almost nothing to correct and the two figures agree.
Is a millibar the same as a hectopascal?
Yes. One millibar and one hectopascal are exactly the same amount of pressure, so 1013 mbar and 1013 hPa mean the same thing. The name changed; the number did not.
Does falling pressure mean rain?
Not by itself. Away from the tropics, falling pressure usually means a low is approaching, and lows carry the fronts that bring cloud and rain, so the two often arrive together. But a shallow fall can pass with nothing more than cloud, and rain falls under steady pressure too. The graph tells you a system is on the way, not how wet it will be. The week ahead, just above, shows the rain forecast beside the pressure.
