Temperature
45 F at 10 PM; 50 F at its warmest, 2 PM, and 45 F at its coolest, 9 PM.
- Now
- 45F
- 10 PM
- Highest
- 50F
- 2 PM
- Lowest
- 45F
- 9 PM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/South Dakota/Madison Municipal Airport
Alert. A Freeze Watch is in force for Madison Municipal Airport until 8 AM Saturday. Read the alert in full, and see what it means in the Field Book. Tomorrow is 8 degrees cooler: a high of 48° after 56° today.
Now. Madison Municipal Airport is 44° and mostly cloudy at 11 PM. With the wind it feels like 35°. The dew point is 38°, so the air feels dry and comfortable. Fresh breeze from the northwest at 21 mph.
Today and tonight. Tonight falls to about 37° by 8 AM, under cloud. No rain is expected for the rest of the day.
The week. The warmest day ahead is Wednesday, near 71°, and the coolest tomorrow, near 48°. The days ahead look dry. The windiest day is tomorrow, with wind to 23 mph. The first freeze could come Saturday, a low of 31°.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the south-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 3 minutes long, 3 minutes shorter than yesterday.
As of 11:00 PM in Madison Municipal Airport, South Dakota.
Air quality
Index 42, good, led by fine particles. Read at 10 PM from its reporting area, Brookings (SD), 27 miles off.
Yesterday measured 21, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.30 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Fri 4 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 03 / 21 unlit | 2,380 ft | 200 ft | Grass | 34° / 214° | 2 mph head, on 03 | 23 mph from the left |
| 15 / 33 | 5,000 ft | 75 ft | Asphalt | 154° / 334° | 21 mph head, on 33 | 9 mph from the left |
Measured here
Every hour from Madison (MDS), Madison Municipal Airport's own instrument, measure by measure, on the field's own clock.
45 F at 10 PM; 50 F at its warmest, 2 PM, and 45 F at its coolest, 9 PM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 39 F, the air 79% saturated; the humidity ran from 68% at 5 PM to 100% at 12 AM.
How it is measured: Humidity variables, Field Book FB-WAT-002
21 mph from the northwest at 10 PM; at its strongest 28 mph, 4 PM, with a gust of 39 mph at 4 PM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.21 inHg at 10 PM, steady over 3 hours; 0.07 inHg higher than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
10 miles or more every hour.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 500 ft at 8 AM; a base was reported in 23 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
None measured in the gauge in the last 24 hours.
How it is measured: ASOS, Field Book FB-INS-002
Madison: every reading, the last 7 days, 30 days and the year, and how well it reports
The 7 instruments nearest Madison Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now5 instruments
MadisonMDS
At an airfield/0.0 mi away/1,709 ft/9 ft below here
temp, wind, gust, visibility, precip, pressure
Sd RWIS MadisonSD636
Beside a road/2.2 mi away/1,667 ft/51 ft below here
temp, pavement temp, wind, visibility, precip
Big Sioux River 10 SE BrookingsBRKS2
At a river or reservoir gauge/20.2 mi away/1,558 ft/160 ft below here
temp, wind, gust, humidity, pressure
Eros Data CenterS2072
At a soil climate station/30.4 mi away/1,551 ft/167 ft below here
temp, humidity, soil temp, soil moisture
Sioux Falls 14 NNE04990
At a climate reference station/30.5 mi away/1,594 ft/124 ft below here
temp, humidity, wind, solar, precip
measured daily2 instruments
Madison 0.8 NESD-LK-13
In a volunteer observer's own ground/0.5 mi away/1,722 ft/4 ft above here
precip, snowfall, snow depth
MadisonMRFS2
At a cooperative observer's station/7.4 mi away/1,742 ft/24 ft above here
snowfall, snow depth, precip, high, low
0in
Snow on the ground
Measured at Madison (MRFS2), 7.4 miles from here, read 15 Oct, 09:00. 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.