Temperature
45 F at 12 AM; 48 F at its warmest, 8 AM Thursday, and 45 F at its coolest, 2 AM Thursday.
- Now
- 45F
- 12 AM
- Highest
- 48F
- 8 AM Thursday
- Lowest
- 45F
- 2 AM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Lake Elmo Airport, Minnesota
Small airport in Washington County, Minnesota* WHAT...Sub-freezing temperatures possible. * WHERE...Portions of central, east central, south central, southeast, southwest, and west central Minnesota and northwest and west central Wisconsin. * WHEN...From late Friday night through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
45°
50°/37°
Light rain·
Feels like 38°·Moderate breeze 13 mph WNW
Alert. A Freeze Watch is in force for Lake Elmo Airport until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book. Rain is likely early this morning, from about 4 AM, the chance peaking at 56% around 5 AM.
Now. Lake Elmo Airport is 45° and light rain at 1 AM. With the wind it feels like 38°. The dew point is 41°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 13 mph.
Today and tonight. It warms to about 49° by 3 PM. Tonight falls to about 34° by 4 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots.
The week. The warmest day ahead is Wednesday, near 70°, and the coolest tomorrow, near 56°. The days ahead look dry. The first freeze could come tomorrow, a low of 31°.
The sky tonight. The sun sets at 6:25 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:06 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 10 hours 58 minutes long, 3 minutes shorter than yesterday.
0UV Low
27Air quality
87%Humidity
100%Cloud
Now
1:00 AM
45feels38
10%
13mph
Today
Oct 16
5037
92%
18mph
Sat
Oct 17
5631
15mph
Sun
Oct 18
6239
14mph
Mon
Oct 19
6340
overcast
Tue
Oct 20
6740
overcast
Wed
Oct 21
7048
17%
Thu
Oct 22
6953
23%
45°
50°37°
56°31°
62°39°
63°40°
67°40°
70°48°
69°53°
As of 1:00 AM in Lake Elmo Airport, Minnesota.
Air quality
The air at Lake Elmo Airport
Index 27, good, led by fine particles. Read at 12 AM from its reporting area, Twin Cities (MN), 16 miles off.
27Good
- Fine particles (PM2.5)27Good9 mi
- Ozone12Good18 ppb12.5 mi
- Coarse particles (PM10)12Good19.9 mi
- Nitrogen dioxide4Good4.9 ppb19.5 mi
- Sulfur dioxide1Good1.1 ppb19.9 mi
- Carbon monoxide-0 ppm19.5 mi
The days ahead
Good each day through Sun Oct 18, led by ozone. Yesterday measured 21, good.
GoodModerate
- 21YesterdayOct 15
- 28TodayOct 16
- GoodSatOct 17
- GoodSunOct 18
Smoke, the next 43 hours
No smoke near the ground through Sat 7 PM.
Precipitation
What has fallen at Lake Elmo Airport
0.56 in in the last 24 hours, 0.60 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.56in
- Last 3 days
- 0.60in
3 days agoLast 24 hours 93%
Visibility
How far you can see at Lake Elmo Airport, the next 43 hours
Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Fri 3 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- 21D
- ICAO
- -
- IATA
- -
- Field elevation
- 933 ft
- Serves
- St Paul
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- 21D
- Wind now
- From 300° at 15 mph, read 16 Oct, 00:35
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 04 / 22 unlit | 2,496 ft | 75 ft | Asphalt | 39° / 219° | 2 mph head, on 22 | 15 mph from the right |
| 14 / 32 | 3,504 ft | 75 ft | Asphalt | 138° / 318° | 14 mph head, on 32 | 5 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from St Paul / Lake Elmo (21D), Lake Elmo Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 40 F, the air 83% saturated; the humidity ran from 81% at 10 PM Thursday to 100% at 3 PM Thursday.
- Dew point now
- 40F
- 12 AM
- Humidity now
- 83%
- Humidity, range
- 81 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
13 mph from the west northwest at 12 AM; at its strongest 13 mph, 12 AM, with a gust of 25 mph at 8 PM Thursday.
- Now
- 13mph
- from the west northwest
- Strongest
- 13mph
- 12 AM
- Highest gust
- 25mph
- 8 PM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.01 inHg at 12 AM, rising 0.02 inHg over 3 hours; 0.19 inHg lower than a day before.
- Now
- 30.01inHg
- 12 AM
- 3 hours
- +0.02inHg
- rising
- 24 hours
- -0.19inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 3 miles at 7 PM Thursday; 7 miles now.
- Now
- 7mi
- Lowest
- 3mi
- 7 PM Thursday
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 400 ft at 11 AM Thursday; a base was reported in 22 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 400ft
- 11 AM Thursday
- Hours with a base reported
- 22
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.53 in measured in the gauge, the most, 0.10 in, in the hour to 1 PM Thursday.
- Last 24 hours
- 0.53in
- Wettest hour
- 0.10in
- 1 PM Thursday
- Hours with some
- 11
How it is measured: ASOS, Field Book FB-INS-002
St Paul / Lake Elmo: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest Lake Elmo 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 now3 instruments
At an airfield/0.0 mi away/933 ft/level with here
temp, wind, gust, visibility, precip, pressure
Cayuga Street Br. I-35E Mile Post 109MN089
Beside a road/11.5 mi away/836 ft/97 ft below here
temp, pavement temp, wind, visibility, precip
William O'Brien Spring Near ScandiaWOBM5
At a river or reservoir gauge/16.4 mi away/795 ft/138 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Lake Elmo 1.9 EMN-WG-165
In a volunteer observer's own ground/0.5 mi away/922 ft/11 ft below here
precip, snowfall, snow depth
Stillwater 2SWSTIM5
At a cooperative observer's station/3.3 mi away/899 ft/34 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Stillwater 2SW (STIM5), 3.3 miles from here, read 15 Oct, 08:00. measured daily
Elsewhere in Minnesota
22 places, each with its own forecast and its own instruments.
Afton Alpsski areaBemidjicityBoundary WatersfeatureBrainerdcityBuck Hillski areaDuluthcityElycityGiants Ridgeski areaGrand MaraiscityHibbingcityInternational FallscityLutsen Mountainsski areaMinneapoliscityMoorheadcityNorth ShorefeatureRochestercitySaint PaulcitySpirit Mountainski areaSt CloudcityTwo HarborscityWelch Villageski areaWild Mountainski area
Near Lake Elmo Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Lake Elmocity, 2 mi
- Oak Park Heightscity, 3 mi
- Bayportcity, 4 mi
- Stillwatercity, 4 mi
- Lakelandcity, 5 mi
- Oakdalecity, 5 mi
- Lakeland Shorescity, 5 mi
- Pine Springscity, 6 mi
- Willerniecity, 6 mi
- Aftoncity, 6 mi
- Grantcity, 6 mi
- Mahtomedicity, 7 mi
Airports near Lake Elmo Airport
- Saint Paul Downtown Holman FieldSTP, 11 mi
- South St Paul Municipal Airport/Richard E Fleming FieldSGS, 13 mi
- Minneapolis-Saint Paul International Airport / Wold-Chamberlain FieldMSP, 20 mi
- Anoka County-Blaine (Janes Field) AirportANE, 20 mi
- Crystal AirportMIC, 25 mi
- Airlake AirportLVN, 31 mi
- Flying Cloud AirportFCM, 32 mi
- Red Wing Regional AirportRGK, 34 mi