Alert. A Freeze Watch is in force for Rochester International Airport until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Rochester International Airport is 45° and overcast at 12 AM. With the wind it feels like 38°. The dew point is 39°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 16 mph, gusting to 28 mph.
Today and tonight. It warms to about 47° by 4 PM. Tonight falls to about 32° by 6 AM, under a mostly clear sky. A freeze: protect plants and pipes.
The week. The warmest day ahead is Wednesday, near 70°, and the coolest tomorrow, near 55°. The days ahead look dry. The windiest day is Sunday, with wind to 22 mph. The first freeze could come tomorrow, a low of 30°.
The sky tonight. The sun sets at 6:25 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:09 PM. The next full Moon is Sunday, Oct 25. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 1 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in Rochester International Airport, Minnesota.
Air quality
Index 26, good, led by fine particles. Read at 11 PM from its reporting area, Rochester Area (MN), 6 miles off.
Good each day through Sun Oct 18, led by fine particles. Yesterday measured 18, good.
No smoke near the ground through Sat 7 PM.
Precipitation
1.10 in in the last 24 hours, and none in the 2 days before, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 5 miles or more through Sat 7 PM, lowest 6 miles Fri 5 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 03 / 21 | 7,301 ft | 150 ft | Concrete | 26° / 206° | 1 mph head, on 03 | 18 mph from the left |
| 13 / 31 | 9,034 ft | 150 ft | Concrete | 132° / 312° | 18 mph head, on 31 | 4 mph from the left |
Measured here
Every hour from Rochester (RST), Rochester International Airport's own instrument, measure by measure, on the field's own clock.
46 F at 10 PM Thursday; 52 F at its warmest, 4 AM Thursday, and 46 F at its coolest, 10 PM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 40 F, the air 79% saturated; the humidity ran from 79% at 10 PM Thursday to 100% at 7 AM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
20 mph from the northwest at 10 PM Thursday; at its strongest 20 mph, 10 PM Thursday, with a gust of 32 mph at 9 PM Thursday.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.00 inHg at 10 PM Thursday, steady over 3 hours; 0.15 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 2 miles at 6 AM Thursday; 8 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 400 ft at 6 AM Thursday; a base was reported in 22 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
1.11 in measured in the gauge, the most, 0.18 in, in the hour to 2 PM Thursday.
How it is measured: ASOS, Field Book FB-INS-002
Rochester: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Rochester International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.
measured now3 instruments
RochesterRST
At an airfield/0.5 mi away/1,322 ft/5 ft above here
temp, wind, gust, visibility, precip, pressure
Rochester US-63 Mile Post 32MN070
Beside a road/1.0 mi away/1,279 ft/38 ft below here
temp, pavement temp, wind, visibility, precip
Eyota 2NEWIRM5
At a river or reservoir gauge/16.7 mi away/1,197 ft/120 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Rochester AP 2NERSRM5
At a cooperative observer's station/2.2 mi away/1,243 ft/74 ft below here
snowfall, snow depth, precip, high, low
Rochester 5.6 SMN-OL-62
In a volunteer observer's own ground/2.3 mi away/1,240 ft/77 ft below here
precip, snowfall, snow depth
0in
Snow on the ground
Measured at Rochester AP 2NE (RSRM5), 2.2 miles from here, read 14 Oct, 07:00. measured daily
22 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.