barometer.today

Barometric pressure in Reno

1017hPa
Steady

Beneath its daily wave, pressure has barely moved. It holds near this level for the coming days.

Sea level reading, as of 09:00 local time. A barometer in Reno itself reads about 870 hPa.

The past week and the days ahead

The shaded part shows the days already gone. The thicker line is the forecast. The thin grey line is the average over a whole day, so you can see where pressure is heading under the daily up and down.

now32/2032° / 18°33° / 18°35° / 19°35° / 17°34° / 19°33° / 19°34° / 19°32° / 19°33° / 17°33° / 18°33° / 18°31° / 18°31° / 16°16Mon 17Tue 18Wed 19Thu 20Fri 21Sat 22Sun 23Mon 24Tue 25Wed 26Thu 27Fri 28Sat 29101010151020
The forecast runs 7 days ahead.

The week ahead

Each day at a glance: how far pressure moves, and the low and high it reaches.

TodayAug 23 −2 hPa

Eases down slowly through the day.

Overcast34° / 19°

low 1011 · high 1017 hPa

MonAug 24 +3 hPa

Rises steadily through the day.

Light drizzle32° / 19°

low 1013 · high 1018 hPa

TueAug 25 −1 hPa

Dips in the afternoon, and comes back by the end of the day.

Partly cloudy33° / 17°

low 1014 · high 1020 hPa

WedAug 26 −2 hPa

Eases down slowly through the day.

Clear sky33° / 18°

low 1013 · high 1018 hPa

ThuAug 27 −1 hPa

Dips in the afternoon, and comes back by the end of the day.

Overcast33° / 18°

low 1012 · high 1017 hPa

FriAug 28 0 hPa

The same daily dip.

Overcast31° / 18°

low 1012 · high 1017 hPa

SatAug 29 −1 hPa

The same daily dip.

Clear sky31° / 16°

low 1012 · high 1016 hPa

Hour by hour
Today Aug 23
HourWeather and temperatureRain (mm)Pressure (hPa)
00:00Partly cloudy21°1016
01:00Partly cloudy21°1016
02:00Partly cloudy20°1016
03:00Partly cloudy19°1016
04:00Partly cloudy19°1016
05:00Partly cloudy19°1016
06:00Overcast19°1017
07:00Overcast20°1017
08:00Overcast21°1017
09:00Overcast23°1017
10:00Overcast26°1016
11:00Overcast28°1015
12:00Partly cloudy30°1014
13:00Partly cloudy32°1013
14:00Mainly clear33°1011
15:00Mainly clear34°1011
16:00Partly cloudy33°1011
17:00Partly cloudy32°1011
18:00Partly cloudy31°1011
19:00Partly cloudy29°1012
20:00Partly cloudy28°1013
21:00Partly cloudy26°1013
22:00Partly cloudy25°1014
23:00Partly cloudy23°1014

Monday has the week's biggest move: up 3 hPa.

What happens next

The forecast shows no big move in either direction this week.

The daily rhythm

In Reno pressure moves on a daily clock: about 6 hPa between its regular low and high, at much the same hours every day. That daily swing is most of the shape you see on the graph, so the change since yesterday tells you more here than the change over the past few hours.

Your own barometer

Reno sits 1372 m above sea level, so a barometer in the city reads about 147 hPa lower than the sea-level figure. A home station set to the local reading should show about 870 hPa as of 09:00.

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 Reno.

Cities nearby

Open one to see its pressure, or search for your own city at the top of the page.

Out in the sun today? Check the UV level in Reno, on our sister site uvi.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, and sometimes the instrument itself. Weather services correct readings to what they would be at sea level, so that cities can be compared. The figure for Reno, which stands 1372 m above sea level, is in the note above: about 147 hPa below the sea-level reading. If your barometer is already set to sea level and still reads slightly differently, that is the setting on the instrument rather than the weather.

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.