NowPartly cloudyTemperature 74°23°Rain chance 11%Wind 6 mph9 km/hENETrack temperature 74°23°
OvercastTemperature 74°23°Rain chance 12%Wind 5 mph8 km/hNETrack temperature 74°23°
OvercastTemperature 73°23°Rain chance 8%Wind 7 mph11 km/hENETrack temperature 73°23°
OvercastTemperature 72°22°Rain chance 7%Wind 7 mph12 km/hENETrack temperature 72°22°
OvercastTemperature 72°22°Rain chance 5%Wind 9 mph14 km/hETrack temperature 72°22°
OvercastTemperature 72°22°Rain chance 7%Wind 8 mph14 km/hETrack temperature 72°22°
OvercastTemperature 71°22°Rain chance 14%Wind 9 mph15 km/hETrack temperature 71°22°
OvercastTemperature 70°21°Rain chance 18%Wind 9 mph14 km/hETrack temperature 70°21°
OvercastTemperature 69°21°Rain chance 20%Wind 7 mph11 km/hETrack temperature 69°21°
OvercastTemperature 69°20°Rain chance 21%Wind 8 mph12 km/hETrack temperature 69°20°
OvercastTemperature 69°20°Rain chance 26%Wind 9 mph15 km/hETrack temperature 69°20°
OvercastTemperature 69°21°Rain chance 32%Wind 8 mph12 km/hETrack temperature 69°21°
OvercastTemperature 69°21°Rain chance 33%Wind 8 mph13 km/hETrack temperature 69°21°
OvercastTemperature 69°21°Rain chance 32%Wind 10 mph16 km/hETrack temperature 69°21°
OvercastTemperature 70°21°Rain chance 38%Wind 10 mph17 km/hENETrack temperature 70°21°
OvercastTemperature 70°21°Rain chance 45%Wind 10 mph16 km/hETrack temperature 73°23°
OvercastTemperature 70°21°Rain chance 35%Wind 9 mph14 km/hENETrack temperature 72°22°
OvercastTemperature 72°22°Rain chance 36%Wind 10 mph16 km/hETrack temperature 84°29°
OvercastTemperature 71°22°Rain chance 34%Wind 6 mph10 km/hETrack temperature 73°23°
Light showersTemperature 71°22°Rain chance 32%Wind 4 mph6 km/hESETrack temperature 72°22°
OvercastTemperature 73°23°Rain chance 31%Wind 7 mph12 km/hENETrack temperature 75°24°
OvercastTemperature 74°24°Rain chance 26%Wind 9 mph14 km/hETrack temperature 84°29°
OvercastTemperature 73°23°Rain chance 22%Wind 7 mph11 km/hENETrack temperature 75°24°
OvercastTemperature 72°22°Rain chance 15%Wind 7 mph11 km/hENETrack temperature 72°22°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,086ft331mField elevation 59 ft
Air density1.187kg/m³96.9% of standard (RAD)
Water grains104grgrains per lb of dry air
Track temp (est.)74°F23°CDirt in no sun
Dew point69°F20°C83% humidity
Barometer30.14inHg1021hPaRising 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 3183°28°67°20° 12%Green flag
TomorrowNov 174°24°69°20° 45%Red flag
MonNov 279°26°65°18° 3%Green flag
TueNov 381°27°66°19° 16%Green flag
WedNov 481°27°70°21° 50%Red flag
ThuNov 580°27°63°17° 35%Green flag
FriNov 677°25°58°14° 7%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
83°28°67°20°
12%
24 mph38 km/h E
100°38°
1,623 ft495 m
7:00 AM · 6:01 PM
Tomorrow Nov 1
Red flagrain
Light showers
74°24°69°20°
45% 0.06 in1.4 mm
24 mph39 km/h ENE
84°29°
1,116 ft340 m
6:01 AM · 5:00 PM
Mon Nov 2
Green flag
Light drizzle
79°26°65°18°
3% <0.01 in0.1 mm
25 mph40 km/h E
95°35°
1,466 ft447 m
6:02 AM · 5:00 PM
Tue Nov 3
Green flag
Drizzle
81°27°66°19°
16% 0.09 in2.3 mm
23 mph36 km/h E
96°36°
1,696 ft517 m
6:03 AM · 4:59 PM
Wed Nov 4
Red flagrain
Light showers
81°27°70°21°
50% 0.25 in6.4 mm
13 mph20 km/h SSE
96°36°
1,870 ft570 m
6:04 AM · 4:58 PM
Thu Nov 5
Green flag
Partly cloudy
80°27°63°17°
35% 0.02 in0.6 mm
6 mph9 km/h NW
103°40°
1,768 ft539 m
6:04 AM · 4:57 PM
Fri Nov 6
Green flag
Clear
77°25°58°14°
7%
5 mph9 km/h NW
98°37°
1,580 ft482 m
6:05 AM · 4:57 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 5 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
74°23°
69°20°
83%
30.14 inHg1021 hPa
1,086 ft331 m
1.187
104
74°23°
6 mph9 km/h ENE
11%
74°23°
69°20°
84%
30.16 inHg1022 hPa
1,051 ft320 m
1.188
104
74°23°
5 mph8 km/h NE
12%
73°23°
66°19°
78%
30.20 inHg1023 hPa
968 ft295 m
1.191
96
73°23°
7 mph11 km/h ENE · gusts 17 mph28 km/h
8%
72°22°
65°19°
79%
30.19 inHg1022 hPa
897 ft273 m
1.193
93
72°22°
7 mph12 km/h ENE · gusts 16 mph25 km/h
7%
72°22°
65°18°
77%
30.20 inHg1023 hPa
884 ft269 m
1.194
90
72°22°
9 mph14 km/h E · gusts 24 mph38 km/h
5%
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 Southern Raceway
Pit box, all week
Every forecast hour for the next seven days at Southern Raceway: 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 Southern Raceway, and a heads-up three days out.
OvercastTemperature 74°23°Rain chance 12%Wind 5 mph8 km/hNETrack temperature 74°23°
OvercastTemperature 69°21°Rain chance 32%Wind 10 mph16 km/hETrack temperature 69°21°
Light showersTemperature 71°22°Rain chance 32%Wind 4 mph6 km/hESETrack temperature 72°22°
79°26° 65°18° 3%Green flag
80°27° 63°17° 35%Green flag
77°25° 58°14° 7%Green flagpartial