NowOvercastTemperature 58°14°Rain chance 0%Wind 5 mph7 km/hNWTrack temperature 62°17°
OvercastTemperature 54°12°Rain chance 0%Wind 3 mph4 km/hNWTrack temperature 55°13°
OvercastTemperature 52°11°Rain chance 0%Wind 3 mph5 km/hNWTrack temperature 52°11°
OvercastTemperature 50°10°Rain chance 0%Wind 3 mph4 km/hNTrack temperature 50°10°
OvercastTemperature 49°10°Rain chance 0%Wind 3 mph5 km/hNTrack temperature 49°10°
OvercastTemperature 48°9°Rain chance 0%Wind 2 mph3 km/hNTrack temperature 48°9°
OvercastTemperature 47°9°Rain chance 0%Wind 1 mph2 km/hWTrack temperature 47°9°
OvercastTemperature 47°8°Rain chance 0%Wind 1 mph2 km/hWNWTrack temperature 47°8°
OvercastTemperature 46°8°Rain chance 1%Wind 1 mph2 km/hWTrack temperature 46°8°
OvercastTemperature 46°8°Rain chance 1%Wind 2 mph3 km/hNNWTrack temperature 46°8°
OvercastTemperature 45°7°Rain chance 1%Wind 1 mph2 km/hNTrack temperature 45°7°
OvercastTemperature 44°7°Rain chance 1%Wind 1 mph2 km/hNTrack temperature 44°7°
OvercastTemperature 44°7°Rain chance 1%Wind 4 mph6 km/hNNWTrack temperature 44°7°
OvercastTemperature 43°6°Rain chance 1%Wind 4 mph6 km/hNNWTrack temperature 43°6°
OvercastTemperature 43°6°Rain chance 2%Wind 4 mph6 km/hNNWTrack temperature 43°6°
OvercastTemperature 44°7°Rain chance 2%Wind 4 mph6 km/hNWTrack temperature 44°7°
OvercastTemperature 46°8°Rain chance 2%Wind 3 mph5 km/hNWTrack temperature 49°10°
OvercastTemperature 51°11°Rain chance 2%Wind 1 mph2 km/hNWTrack temperature 61°16°
OvercastTemperature 55°13°Rain chance 2%Wind 5 mph7 km/hSSETrack temperature 66°19°
OvercastTemperature 57°14°Rain chance 2%Wind 7 mph12 km/hSTrack temperature 73°23°
OvercastTemperature 59°15°Rain chance 2%Wind 7 mph12 km/hSTrack temperature 76°25°
OvercastTemperature 60°16°Rain chance 2%Wind 7 mph12 km/hSTrack temperature 73°23°
OvercastTemperature 61°16°Rain chance 2%Wind 8 mph12 km/hSTrack temperature 76°25°
OvercastTemperature 61°16°Rain chance 2%Wind 7 mph11 km/hSTrack 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 altitude793ft242mField elevation 1,093 ft
Air density1.197kg/m³97.7% of standard (RAD)
Water grains29grgrains per lb of dry air
Track temp (est.)62°F17°CDirt in 131 W/m² sun
Dew point34°F1°C41% humidity
Barometer30.41inHg1030hPaSteady 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 3158°15°38°3° 0%Green flag
TomorrowNov 161°16°43°6° 3%Green flag
MonNov 257°14°45°7° 3%Green flag
TueNov 365°18°43°6° 1%Green flag
WedNov 469°21°47°8° 17%Yellow flag
ThuNov 567°20°53°12° 46%Green flag
FriNov 661°16°60°15° 47%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
58°15°38°3°
0%
10 mph15 km/h NW
79°26°
826 ft252 m
7:38 AM · 6:11 PM
Tomorrow Nov 1
Green flag
Overcast
61°16°43°6°
3%
9 mph15 km/h SSW
76°25°
914 ft279 m
6:39 AM · 5:10 PM
Mon Nov 2
Green flag
Overcast
57°14°45°7°
3%
9 mph15 km/h S
72°22°
854 ft260 m
6:40 AM · 5:08 PM
Tue Nov 3
Green flag
Mostly clear
65°18°43°6°
1%
11 mph18 km/h S
83°28°
1,530 ft466 m
6:41 AM · 5:07 PM
Wed Nov 4
Yellow flaggusty wind
Overcast
69°21°47°8°
17%
28 mph45 km/h SSE
82°28°
2,019 ft615 m
6:42 AM · 5:06 PM
Thu Nov 5
Green flag
Light drizzle
67°20°53°12°
46% 0.05 in1.2 mm
12 mph19 km/h SSE
78°26°
2,069 ft631 m
6:44 AM · 5:05 PM
Fri Nov 6
Green flag
Drizzle
61°16°60°15°
47% 0.7 in17.9 mm
17 mph27 km/h E
62°17°
1,878 ft572 m
6:45 AM · 5:04 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
58°14°
34°1°
41%
30.41 inHg1030 hPa
793 ft242 m
1.197
29
62°17°
5 mph7 km/h NW
0%
54°12°
32°0°
43%
30.45 inHg1031 hPa
536 ft163 m
1.206
27
55°13°
3 mph4 km/h NW
0%
52°11°
31°-1°
44%
30.45 inHg1031 hPa
350 ft107 m
1.212
25
52°11°
3 mph5 km/h NW
0%
50°10°
30°-1°
45%
30.47 inHg1032 hPa
250 ft76 m
1.216
25
50°10°
3 mph4 km/h N
0%
49°10°
29°-1°
46%
30.46 inHg1031 hPa
206 ft63 m
1.218
24
49°10°
3 mph5 km/h N
0%
48°9°
29°-2°
47%
30.47 inHg1032 hPa
94 ft29 m
1.222
24
48°9°
2 mph3 km/h N
0%
47°9°
29°-2°
48%
30.48 inHg1032 hPa
50 ft15 m
1.223
24
47°9°
1 mph2 km/h W
0%
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 Path Valley
Pit box, all week
Every forecast hour for the next seven days at Path Valley: 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 Path Valley, and a heads-up three days out.
OvercastTemperature 52°11°Rain chance 0%Wind 3 mph5 km/hNWTrack temperature 52°11°
65°18° 43°6° 1%Green flag
67°20° 53°12° 46%Green flag