Temperature
66 F at 9 PM; 80 F at its warmest, 2 PM, and 66 F at its coolest, 9 PM.
- Now
- 66F
- 9 PM
- Highest
- 80F
- 2 PM
- Lowest
- 66F
- 9 PM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Now. Rolla National Airport is 54° and overcast at 1 AM. The dew point is 50°, so the air feels dry and comfortable. Moderate breeze from the northwest at 14 mph.
Today and tonight. The warmest of the day has passed; it cools to about 45° by 8 PM. Tonight falls to about 37° by 7 AM, with some cloud. No rain is expected for the rest of the day.
The week. The warmest day ahead is Thursday, near 80°, and the coolest tomorrow, near 58°. The days ahead look dry. Frost is possible Sunday morning, a low of 36°.
The sky tonight. The sun sets at 6:28 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:30 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 day is 11 hours 13 minutes long, 2 minutes shorter than yesterday.
As of 1:00 AM in Rolla National Airport, Missouri.
Air quality
Index 15, good, led by ozone. Read at 12 AM from its reporting area, Jefferson City (MO), 43 miles off.
Yesterday measured 18, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.21 in in the last 24 hours, 0.85 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 9 miles or more through Sat 7 PM, lowest 9 miles Sat 7 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 04 / 22 | 5,500 ft | 100 ft | Asphalt | 46° / 226° | 1 mph head, on 04 | 14 mph from the left |
| 13 / 31 | 5,501 ft | 100 ft | Asphalt | 136° / 316° | 14 mph head, on 31 | 1 mph from the right |
Measured here
Every hour from Vichy/Rolla (VIH), Rolla National Airport's own instrument, measure by measure, on the field's own clock.
66 F at 9 PM; 80 F at its warmest, 2 PM, and 66 F at its coolest, 9 PM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 64 F, the air 93% saturated; the humidity ran from 64% at 4 PM to 100% at 10 PM Wednesday.
How it is measured: Humidity variables, Field Book FB-WAT-002
17 mph from the northwest at 9 PM; at its strongest 17 mph, 9 PM, with a gust of 32 mph at 9 PM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.04 inHg at 9 PM, rising 0.05 inHg over 3 hours; 0.05 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 0.2 miles at 10 PM Wednesday, under a mile for 1 hour; 7 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 100 ft at 10 PM Wednesday; a base was reported in 24 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.11 in measured in the gauge, the most, 0.07 in, in the hour to 9 AM.
How it is measured: ASOS, Field Book FB-INS-002
Vichy/Rolla: every reading, the last 7 days, 30 days and the year, and how well it reports
The 6 instruments nearest Rolla National Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.
measured now4 instruments
Vichy/RollaVIH
At an airfield/0.2 mi away/1,093 ft/55 ft below here
temp, wind, gust, visibility, precip, pressure
Rolla Water StationRALM7
At a river or reservoir gauge/13.0 mi away/984 ft/164 ft below here
temp, wind, gust, humidity, pressure
Carver FarmS2223
At a soil climate station/34.0 mi away/581 ft/567 ft below here
temp, humidity, soil temp, soil moisture
Salem 10 W23909
At a climate reference station/34.5 mi away/1,198 ft/50 ft above here
temp, humidity, wind, solar, precip
measured daily2 instruments
St. James 7.7 NMO-MS-5
In a volunteer observer's own ground/7.2 mi away/942 ft/206 ft below here
precip, snowfall, snow depth
RollaRRGM7
At a cooperative observer's station/12.3 mi away/1,086 ft/62 ft below here
snowfall, snow depth, precip, high, low
0in
Snow on the ground
Measured at Rolla (RRGM7), 12.3 miles from here, read 15 Oct, 07:30. measured daily
24 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.