NowOvercastTemperature 75°24°Rain chance 1%Wind 5 mph9 km/hSSETrack temperature 80°27°
OvercastTemperature 71°22°Rain chance 1%Wind 4 mph6 km/hSETrack temperature 74°23°
OvercastTemperature 66°19°Rain chance 1%Wind 4 mph7 km/hESETrack temperature 66°19°
OvercastTemperature 64°18°Rain chance 2%Wind 3 mph4 km/hSETrack temperature 64°18°
OvercastTemperature 63°17°Rain chance 4%Wind 5 mph9 km/hENETrack temperature 63°17°
OvercastTemperature 61°16°Rain chance 5%Wind 5 mph8 km/hENETrack temperature 61°16°
OvercastTemperature 60°15°Rain chance 5%Wind 4 mph7 km/hENETrack temperature 60°15°
OvercastTemperature 58°15°Rain chance 5%Wind 3 mph6 km/hENETrack temperature 58°15°
OvercastTemperature 57°14°Rain chance 3%Wind 4 mph7 km/hENETrack temperature 57°14°
OvercastTemperature 57°14°Rain chance 3%Wind 3 mph5 km/hNETrack temperature 57°14°
OvercastTemperature 56°13°Rain chance 4%Wind 1 mph2 km/hWSWTrack temperature 56°13°
OvercastTemperature 55°13°Rain chance 6%Wind 2 mph3 km/hNNETrack temperature 55°13°
OvercastTemperature 54°12°Rain chance 6%Wind 2 mph3 km/hNNETrack temperature 54°12°
OvercastTemperature 55°13°Rain chance 6%Wind 1 mph2 km/hETrack temperature 55°13°
OvercastTemperature 53°12°Rain chance 8%Wind 3 mph5 km/hNETrack temperature 53°12°
OvercastTemperature 54°12°Rain chance 8%Wind 8 mph13 km/hENETrack temperature 54°12°
OvercastTemperature 55°13°Rain chance 10%Wind 7 mph12 km/hETrack temperature 56°14°
OvercastTemperature 59°15°Rain chance 12%Wind 2 mph3 km/hETrack temperature 62°17°
Light drizzleTemperature 61°16°Rain chance 11%Wind 5 mph8 km/hETrack temperature 69°21°
OvercastTemperature 64°18°Rain chance 6%Wind 5 mph9 km/hETrack temperature 74°24°
OvercastTemperature 64°18°Rain chance 6%Wind 2 mph4 km/hETrack temperature 72°22°
OvercastTemperature 65°19°Rain chance 5%Wind 4 mph6 km/hESETrack temperature 74°24°
OvercastTemperature 67°19°Rain chance 8%Wind 6 mph10 km/hETrack temperature 74°23°
OvercastTemperature 65°19°Rain chance 6%Wind 7 mph11 km/hSETrack temperature 68°20°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude2,063ft629mField elevation 1,142 ft
Air density1.153kg/m³94.1% of standard (RAD)
Water grains29grgrains per lb of dry air
Track temp (est.)80°F27°CDirt in 145 W/m² sun
Dew point34°F1°C22% humidity
Barometer30.29inHg1026hPaSteady 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 3176°25°48°9° 5%Green flag
TomorrowNov 167°19°53°12° 12%Green flag
MonNov 272°22°54°12° 11%Green flag
TueNov 375°24°49°10° 1%Yellow flag
WedNov 472°22°57°14° 45%Yellow flag
ThuNov 564°18°61°16° 51%Red flag
FriNov 667°19°60°15° 33%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
76°25°48°9°
5%
13 mph20 km/h ENE
98°37°
2,156 ft657 m
7:53 AM · 6:38 PM
Tomorrow Nov 1
Green flag
Light drizzle
67°19°53°12°
12% 0.02 in0.4 mm
17 mph28 km/h E
74°24°
1,481 ft451 m
6:54 AM · 5:37 PM
Mon Nov 2
Green flag
Overcast
72°22°54°12°
11%
12 mph19 km/h E
85°30°
2,040 ft622 m
6:55 AM · 5:36 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
75°24°49°10°
1%
30 mph49 km/h ESE
90°32°
2,348 ft716 m
6:56 AM · 5:35 PM
Wed Nov 4
Yellow flaggusty wind
Light drizzle
72°22°57°14°
45% 0.01 in0.2 mm
26 mph41 km/h SE
83°28°
2,365 ft721 m
6:57 AM · 5:34 PM
Thu Nov 5
Red flagrain
Heavy drizzle
64°18°61°16°
51% 0.28 in7.2 mm
10 mph16 km/h ENE
66°19°
1,978 ft603 m
6:58 AM · 5:33 PM
Fri Nov 6
Green flag
Drizzle
67°19°60°15°
33% 0.32 in8.1 mm
14 mph23 km/h W
73°23°
2,337 ft712 m
6:59 AM · 5:32 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 7 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
75°24°
34°1°
22%
30.29 inHg1026 hPa
2,063 ft629 m
1.153
29
80°27°
5 mph9 km/h SSE
1%
71°22°
33°0°
24%
30.32 inHg1027 hPa
1,808 ft551 m
1.161
28
74°23°
4 mph6 km/h SE · gusts 12 mph19 km/h
1%
66°19°
30°-1°
26%
30.33 inHg1027 hPa
1,478 ft450 m
1.173
25
66°19°
4 mph7 km/h ESE · gusts 12 mph20 km/h
1%
64°18°
32°0°
31%
30.33 inHg1027 hPa
1,302 ft397 m
1.179
28
64°18°
3 mph4 km/h SE · gusts 13 mph20 km/h
2%
63°17°
34°1°
34%
30.34 inHg1028 hPa
1,250 ft381 m
1.181
29
63°17°
5 mph9 km/h ENE
4%
61°16°
33°1°
35%
30.34 inHg1028 hPa
1,138 ft347 m
1.185
29
61°16°
5 mph8 km/h ENE
5%
60°15°
34°1°
38%
30.35 inHg1028 hPa
1,055 ft322 m
1.188
29
60°15°
4 mph7 km/h ENE
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 Volunteer
Pit box, all week
Every forecast hour for the next seven days at Volunteer: 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 Volunteer, and a heads-up three days out.
OvercastTemperature 66°19°Rain chance 1%Wind 4 mph7 km/hESETrack temperature 66°19°
Light drizzleTemperature 61°16°Rain chance 11%Wind 5 mph8 km/hETrack temperature 69°21°