Temperature
39 F at 9 PM; 50 F at its warmest, 1 PM, and 39 F at its coolest, 6 PM.
- Now
- 39F
- 9 PM
- Highest
- 50F
- 1 PM
- Lowest
- 39F
- 6 PM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/South Dakota/Black Hills Airport-Clyde Ice Field
Black Hills Airport-Clyde Ice Field, South Dakota
Small airport in Lawrence County, South Dakota* WHAT...Sub-freezing temperatures as low as 22 degrees. * WHERE...Portions of northwestern and southwestern South Dakota and northeast Wyoming. * WHEN...Until 9 AM MDT Friday. * 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.
38°
51°/38°
Overcast·
Feels like 29°·Moderate breeze 16 mph WNW
Alert. A Freeze Warning is in force for Black Hills Airport-Clyde Ice Field until 9 AM tomorrow. Read the alert in full, and see what it means in the Field Book.
Now. Black Hills Airport-Clyde Ice Field is 38° and overcast at 11 PM. With the wind it feels like 29°. The dew point is 25°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 16 mph, gusting to 26 mph.
Today and tonight. Tonight falls to about 28° by 6 AM, under a mostly clear sky. A freeze: protect plants and pipes. No rain is expected for the rest of the day.
The week. The warmest day ahead is Saturday, near 77°, and the coolest tomorrow, near 53°. The days ahead look dry. The first freeze could come tomorrow, a low of 28°.
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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 2 minutes long, 3 minutes shorter than yesterday.
0UV Low
31Air quality
56%Humidity
98%Cloud
Now
11:00 PM
38feels29
16mph
Today
Oct 15
5138
31mph
Fri
Oct 16
5328
14mph
Sat
Oct 17
7742
12mph
Sun
Oct 18
6147
clear day
Mon
Oct 19
6439
12mph
Tue
Oct 20
7346
mostly clear day
Wed
Oct 21
7050
mostly clear day
38°
51°38°
53°28°
77°42°
61°47°
64°39°
73°46°
70°50°
As of 11:00 PM in Black Hills Airport-Clyde Ice Field, South Dakota.
Air quality
The air at Black Hills Airport-Clyde Ice Field
Index 31, good, led by ozone. Read at 10 PM from its reporting area, Rapid City (SD), 37 miles off.
31Good
- Fine particles (PM2.5)18Good-
- Ozone31Good-
- Coarse particles (PM10)28Good-
The days ahead
Yesterday measured 16, good.
GoodModerate
- 16YesterdayOct 14
Smoke, the next 44 hours
No smoke near the ground through Sat 6 PM.
Precipitation
What has fallen at Black Hills Airport-Clyde Ice Field
0.04 in in the last 24 hours, 0.05 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.04in
- Last 3 days
- 0.05in
3 days agoLast 24 hours 80%
Visibility
How far you can see at Black Hills Airport-Clyde Ice Field, the next 44 hours
Visibility stays 10 miles or more through Sat 6 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- SPF
- ICAO
- KSPF
- IATA
- SPF
- Field elevation
- 3,931 ft
- Serves
- Spearfish
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- SPF
- Wind now
- From 300° at 16 mph, read 15 Oct, 22:35
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 04 / 22 unlit | 1,995 ft | 120 ft | Turf | 41° / 221° | 3 mph head, on 22 | 16 mph from the right |
| 08 / 26 unlit | 4,003 ft | 100 ft | Grass | 90° / 270° | 14 mph head, on 26 | 8 mph from the right |
| 13 / 31 | 6,401 ft | 75 ft | Asphalt | 134° / 314° | 16 mph head, on 31 | 4 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Spearfish (SPF), Black Hills Airport-Clyde Ice Field's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 25 F, the air 56% saturated; the humidity ran from 35% at 2 PM to 100% at 12 AM.
- Dew point now
- 25F
- 9 PM
- Humidity now
- 56%
- Humidity, range
- 35 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
15 mph from the west northwest at 9 PM; at its strongest 32 mph, 3 PM, with a gust of 44 mph at 2 PM.
- Now
- 15mph
- from the west northwest
- Strongest
- 32mph
- 3 PM
- Highest gust
- 44mph
- 2 PM
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.68 inHg at 9 PM, rising 0.08 inHg over 3 hours; 0.50 inHg higher than a day before.
- Now
- 30.68inHg
- 9 PM
- 3 hours
- +0.08inHg
- rising
- 24 hours
- +0.50inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 6 miles at 1 AM; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 6mi
- 1 AM
- 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 500 ft at 1 AM; a base was reported in 17 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 500ft
- 1 AM
- Hours with a base reported
- 17
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Spearfish: 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 Black Hills Airport-Clyde Ice Field, 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
SpearfishSPF
At an airfield/0.0 mi away/3,892 ft/39 ft below here
temp, wind, gust, visibility, precip, pressure
Spearfish RAWSSFRS2
A remote fire weather station/2.3 mi away/4,253 ft/322 ft above here
temp, wind, gust, humidity, pressure
Sd RWIS KirkSD585
Beside a road/9.5 mi away/5,010 ft/1,079 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Spearfish 1.1 ESD-LW-21
In a volunteer observer's own ground/2.1 mi away/3,920 ft/11 ft below here
precip, snowfall, snow depth
SpearfishSPES2
At a cooperative observer's station/5.0 mi away/3,517 ft/414 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 Spearfish (SPES2), 5.0 miles from here, read 15 Oct, 09:13. measured daily
Elsewhere in South Dakota
24 places, each with its own forecast and its own instruments.
AberdeencityBadlandsfeatureBelle FourchecityBlack Elk PeakfeatureBlack HillsfeatureBrookingscityCustercityDeadwoodcityGreat Bearski areaHot SpringscityHuroncityLake OahefeatureLeadcityMitchellcityPierrecityRapid CitycitySioux FallscitySpearfishcitySturgiscityTerry Peakski areaVermillioncityWatertowncityWind Cave National ParkfeatureYanktoncity
Near Black Hills Airport-Clyde Ice Field
The nearest places, each with its own forecast and the instruments nearest it.
- Spearfishcity, 4 mi
- Mountain Plainscommunity, 4 mi
- North Spearfishcommunity, 5 mi
- St. Ongecommunity, 5 mi
- Whitewoodcity, 7 mi
- Crook Citycommunity, 8 mi
- Central Citycity, 8 mi
- Deadwoodcity, 8 mi
- Leadcity, 9 mi
- Terry Peakski area, 11 mi
- Boulder Canyoncommunity, 11 mi
- Fruitdaletown, 14 mi
Airports near Black Hills Airport-Clyde Ice Field
- Sturgis Municipal Airport49B, 21 mi
- Ellsworth Air Force BaseRCA, 41 mi
- Rapid City Regional AirportRAP, 47 mi
- Custer County AirportCUT, 52 mi
- Faith Municipal AirportD07, 95 mi
- Philip AirportPHP, 112 mi
- Pine Ridge AirportIEN, 119 mi
- Rosebud Sioux Tribal AirportSUO, 168 mi