NowOvercastTemperature 71°22°Rain chance 4%Wind 4 mph7 km/hSWTrack temperature 81°27°
OvercastTemperature 71°22°Rain chance 5%Wind 2 mph4 km/hWSWTrack temperature 80°27°
OvercastTemperature 71°22°Rain chance 15%Wind 1 mph2 km/hSSWTrack temperature 73°23°
DrizzleTemperature 68°20°Rain chance 24%Wind 5 mph8 km/hWTrack temperature 69°21°
OvercastTemperature 65°18°Rain chance 25%Wind 7 mph11 km/hWNWTrack temperature 65°18°
OvercastTemperature 63°17°Rain chance 32%Wind 5 mph7 km/hWNWTrack temperature 63°17°
OvercastTemperature 62°17°Rain chance 35%Wind 2 mph3 km/hNWTrack temperature 62°17°
Light drizzleTemperature 61°16°Rain chance 41%Wind 3 mph5 km/hENETrack temperature 61°16°
OvercastTemperature 61°16°Rain chance 47%Wind 4 mph6 km/hNTrack temperature 61°16°
Light drizzleTemperature 60°16°Rain chance 51%Wind 5 mph8 km/hNNETrack temperature 60°16°
Light drizzleTemperature 60°15°Rain chance 51%Wind 4 mph7 km/hNETrack temperature 60°15°
DrizzleTemperature 60°15°Rain chance 48%Wind 2 mph4 km/hENETrack temperature 60°15°
OvercastTemperature 60°15°Rain chance 44%Wind 5 mph8 km/hSTrack temperature 60°15°
OvercastTemperature 57°14°Rain chance 38%Wind 8 mph13 km/hNNWTrack temperature 57°14°
OvercastTemperature 57°14°Rain chance 37%Wind 8 mph13 km/hNWTrack temperature 57°14°
OvercastTemperature 56°14°Rain chance 28%Wind 6 mph9 km/hNNWTrack temperature 56°14°
OvercastTemperature 56°13°Rain chance 16%Wind 8 mph13 km/hNNWTrack temperature 56°13°
Partly cloudyTemperature 55°13°Rain chance 13%Wind 7 mph11 km/hNWTrack temperature 55°13°
Mostly clearTemperature 53°12°Rain chance 8%Wind 7 mph11 km/hNWTrack temperature 54°12°
ClearTemperature 55°13°Rain chance 6%Wind 8 mph14 km/hWNWTrack temperature 61°16°
OvercastTemperature 58°14°Rain chance 4%Wind 12 mph19 km/hNWTrack temperature 68°20°
OvercastTemperature 58°15°Rain chance 3%Wind 11 mph17 km/hNNWTrack temperature 68°20°
OvercastTemperature 60°16°Rain chance 2%Wind 10 mph16 km/hNNWTrack temperature 73°23°
Mostly clearTemperature 63°17°Rain chance 1%Wind 10 mph16 km/hNWTrack temperature 81°27°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,295ft395mField elevation 236 ft
Air density1.179kg/m³96.3% of standard (RAD)
Water grains54grgrains per lb of dry air
Track temp (est.)81°F27°CDirt in 268 W/m² sun
Dew point50°F10°C47% humidity
Barometer29.88inHg1012hPaFalling over 3 h
SurfaceDryDry, likely dusty: little rain in 48 h
Rain, last 48 h0.0in0mmat the track
Computed from the forecast air temperature, dew point and station pressure (NWS formulas). Track temperature is estimated from sun, wind and the surface; it is not a sensor reading. How these are figured.
This week
Day by day
TodayOct 3171°22°54°12° 51%Green flag
TomorrowNov 165°18°49°10° 51%Green flag
MonNov 269°21°49°10° 0%Green flag
TueNov 373°23°55°13° 2%Yellow flag
WedNov 466°19°49°9° 2%Green flag
ThuNov 569°21°52°11° 1%Green flag
FriNov 674°24°52°11° 0%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Drizzle
71°22°54°12°
51% 0.06 in1.5 mm
10 mph17 km/h WNW
92°33°
1,315 ft401 m
7:19 AM · 6:04 PM
Tomorrow Nov 1
Green flag
Overcast
65°18°49°10°
51% 0.04 in1.1 mm
22 mph36 km/h NW
82°28°
800 ft244 m
6:20 AM · 5:03 PM
Mon Nov 2
Green flag
Overcast
69°21°49°10°
0%
5 mph8 km/h NW
95°35°
839 ft256 m
6:21 AM · 5:02 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
73°23°55°13°
2%
32 mph51 km/h NW
96°36°
1,146 ft349 m
6:22 AM · 5:01 PM
Wed Nov 4
Green flag
Overcast
66°19°49°9°
2%
29 mph47 km/h NW
85°30°
767 ft234 m
6:23 AM · 5:00 PM
Thu Nov 5
Green flag
Overcast
69°21°52°11°
1%
6 mph9 km/h NW
85°29°
1,028 ft313 m
6:24 AM · 4:59 PM
Fri Nov 6
Green flag
Partly cloudy
74°24°52°11°
0%
5 mph8 km/h NW
95°35°
1,285 ft392 m
6:25 AM · 4:58 PM
Flags judge the racing hours, 9 am to 10 pm at the track. Days marked partial are at the edge of the forecast.
Today’s remaining 10 hours are free. Pro members get all seven days and the CSV.
Hour
Air
Dew pt
Humidity
Barometer
Density alt.
Air density kg/m³
Grains
Track temp (est.)
Wind
Rain
71°22°
50°10°
47%
29.88 inHg1012 hPa
1,295 ft395 m
1.179
54
81°27°
4 mph7 km/h SW
4%
71°22°
50°10°
47%
29.86 inHg1011 hPa
1,315 ft401 m
1.179
54
80°27°
2 mph4 km/h WSW
5%
71°22°
49°9°
46%
29.84 inHg1010 hPa
1,290 ft393 m
1.179
52
73°23°
1 mph2 km/h SSW
15%
68°20°
52°11°
55%
29.84 inHg1011 hPa
1,153 ft351 m
1.184
57
69°21°
5 mph8 km/h W
24%
65°18°
55°13°
71%
29.85 inHg1011 hPa
949 ft289 m
1.191
66
65°18°
7 mph11 km/h WNW
25%
63°17°
56°13°
77%
29.83 inHg1010 hPa
866 ft264 m
1.194
67
63°17°
5 mph7 km/h WNW
32%
62°17°
58°14°
87%
29.84 inHg1010 hPa
784 ft239 m
1.197
72
62°17°
2 mph3 km/h NW
35%
61°16°
58°15°
90%
29.85 inHg1011 hPa
723 ft220 m
1.199
73
61°16°
3 mph5 km/h ENE
41%
61°16°
58°15°
92%
29.84 inHg1011 hPa
714 ft218 m
1.200
74
61°16°
4 mph6 km/h N
47%
60°16°
58°14°
92%
29.83 inHg1010 hPa
675 ft206 m
1.201
72
60°16°
5 mph8 km/h NNE
51%
Every hour from the forecast, the same arithmetic as the pit box above (NWS density-altitude formula; track temperature is an estimate). Hours in your time zone, the track’s when they match.
Raceway Weather Pro
Plan the whole week at Kings
Pit box, all week
Every forecast hour for the next seven days at Kings: density altitude, air density, grains, track temp and more, with a CSV for the tuning laptop.
Do the models agree?
ECMWF, GFS and ICON side by side for the next three racing days, so you know when the forecast is shaky.
Next 6 hours of rain
Rain in 15-minute steps for the next six hours at your tracks, refreshed every hour.
Alerts for your tracks
An email the morning a red or yellow flag is due at Kings, and a heads-up three days out.
DrizzleTemperature 68°20°Rain chance 24%Wind 5 mph8 km/hWTrack temperature 69°21°
OvercastTemperature 63°17°Rain chance 32%Wind 5 mph7 km/hWNWTrack temperature 63°17°
Partly cloudyTemperature 55°13°Rain chance 13%Wind 7 mph11 km/hNWTrack temperature 55°13°
Mostly clearTemperature 53°12°Rain chance 8%Wind 7 mph11 km/hNWTrack temperature 54°12°
74°24° 52°11° 0%Green flagpartial