NowMostly clearTemperature 53°12°Rain chance 0%Wind 9 mph14 km/hWNWTrack temperature 59°15°
ClearTemperature 49°9°Rain chance 0%Wind 6 mph9 km/hWNWTrack temperature 49°9°
ClearTemperature 46°8°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 46°8°
ClearTemperature 44°7°Rain chance 0%Wind 4 mph6 km/hWSWTrack temperature 44°7°
ClearTemperature 42°6°Rain chance 0%Wind 3 mph6 km/hWSWTrack temperature 42°6°
ClearTemperature 42°6°Rain chance 0%Wind 4 mph7 km/hSWTrack temperature 42°6°
ClearTemperature 41°5°Rain chance 0%Wind 6 mph10 km/hSSWTrack temperature 41°5°
OvercastTemperature 40°4°Rain chance 0%Wind 6 mph9 km/hSSWTrack temperature 40°4°
Mostly clearTemperature 39°4°Rain chance 0%Wind 5 mph9 km/hSSWTrack temperature 39°4°
OvercastTemperature 38°4°Rain chance 0%Wind 6 mph9 km/hSSWTrack temperature 38°4°
ClearTemperature 38°3°Rain chance 0%Wind 6 mph9 km/hSSWTrack temperature 38°3°
ClearTemperature 37°3°Rain chance 0%Wind 6 mph9 km/hSSWTrack temperature 37°3°
ClearTemperature 37°3°Rain chance 0%Wind 5 mph8 km/hSTrack temperature 37°3°
ClearTemperature 36°2°Rain chance 0%Wind 5 mph8 km/hSTrack temperature 36°2°
Mostly clearTemperature 36°2°Rain chance 1%Wind 5 mph8 km/hSSWTrack temperature 36°2°
Mostly clearTemperature 37°3°Rain chance 1%Wind 6 mph10 km/hSTrack temperature 37°3°
ClearTemperature 42°6°Rain chance 2%Wind 4 mph7 km/hSSWTrack temperature 46°8°
ClearTemperature 50°10°Rain chance 2%Wind 8 mph13 km/hSSWTrack temperature 58°14°
ClearTemperature 54°12°Rain chance 3%Wind 9 mph14 km/hSWTrack temperature 67°19°
ClearTemperature 58°15°Rain chance 3%Wind 8 mph13 km/hSWTrack temperature 74°23°
ClearTemperature 62°16°Rain chance 4%Wind 8 mph13 km/hSWTrack temperature 78°26°
Partly cloudyTemperature 64°18°Rain chance 4%Wind 7 mph12 km/hSWTrack temperature 80°27°
ClearTemperature 65°18°Rain chance 4%Wind 6 mph10 km/hSWTrack temperature 80°27°
Mostly clearTemperature 65°18°Rain chance 4%Wind 6 mph9 km/hSSWTrack temperature 76°25°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude-358ft-109mField elevation 410 ft
Air density1.238kg/m³101.1% of standard (RAD)
Water grains33grgrains per lb of dry air
Track temp (est.)59°F15°CDirt in 197 W/m² sun
Dew point38°F3°C56% humidity
Barometer30.42inHg1030hPaSteady over 3 h
SurfaceTackyTacky: some moisture in the top layer
Rain, last 48 h0.28in7.2mmat 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 3153°12°39°4° 0%Green flag
TomorrowNov 165°18°36°2° 4%Green flag
MonNov 268°20°48°9° 4%Green flag
TueNov 362°17°53°11° 6%Yellow flag
WedNov 471°21°56°14° 27%Yellow flag
ThuNov 564°18°56°13° 43%Red flag
FriNov 663°17°53°12° 43%Red flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
53°12°39°4°
0%
17 mph28 km/h W
63°17°
-334 ft-102 m
7:38 AM · 6:01 PM
Tomorrow Nov 1
Green flag
Partly cloudy
65°18°36°2°
4%
19 mph30 km/h SSW
80°27°
389 ft119 m
6:39 AM · 4:59 PM
Mon Nov 2
Green flag
Overcast
68°20°48°9°
4%
24 mph39 km/h SSW
82°28°
827 ft252 m
6:40 AM · 4:58 PM
Tue Nov 3
Yellow flaggusty wind
Light drizzle
62°17°53°11°
6% 0.01 in0.2 mm
30 mph49 km/h S
70°21°
553 ft169 m
6:42 AM · 4:57 PM
Wed Nov 4
Yellow flaggusty wind
Overcast
71°21°56°14°
27%
38 mph62 km/h S
79°26°
1,348 ft411 m
6:43 AM · 4:56 PM
Thu Nov 5
Red flagrain
Drizzle
64°18°56°13°
43% 0.59 in14.9 mm
40 mph64 km/h SSW
61°16°
818 ft249 m
6:44 AM · 4:54 PM
Fri Nov 6
Red flagrain
Light rain
63°17°53°12°
43% 0.16 in4.1 mm
21 mph33 km/h ENE
71°22°
936 ft285 m
6:46 AM · 4:53 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
53°12°
38°3°
56%
30.42 inHg1030 hPa
-358 ft-109 m
1.238
33
59°15°
9 mph14 km/h WNW · gusts 16 mph25 km/h
0%
49°9°
36°2°
60%
30.46 inHg1031 hPa
-672 ft-205 m
1.249
30
49°9°
6 mph9 km/h WNW · gusts 13 mph22 km/h
0%
46°8°
36°2°
68%
30.47 inHg1032 hPa
-917 ft-280 m
1.258
30
46°8°
5 mph8 km/h WNW · gusts 12 mph19 km/h
0%
44°7°
35°2°
72%
30.49 inHg1033 hPa
-1,062 ft-324 m
1.264
30
44°7°
4 mph6 km/h WSW
0%
42°6°
35°2°
75%
30.48 inHg1032 hPa
-1,135 ft-346 m
1.266
30
42°6°
3 mph6 km/h WSW
0%
42°6°
35°2°
76%
30.48 inHg1032 hPa
-1,173 ft-358 m
1.268
30
42°6°
4 mph7 km/h SW
0%
41°5°
36°2°
83%
30.48 inHg1032 hPa
-1,243 ft-379 m
1.270
31
41°5°
6 mph10 km/h SSW
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 Weedsport
Pit box, all week
Every forecast hour for the next seven days at Weedsport: 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 Weedsport, and a heads-up three days out.
ClearTemperature 46°8°Rain chance 0%Wind 5 mph8 km/hWNWTrack temperature 46°8°
OvercastTemperature 40°4°Rain chance 0%Wind 6 mph9 km/hSSWTrack temperature 40°4°
Partly cloudyTemperature 64°18°Rain chance 4%Wind 7 mph12 km/hSWTrack temperature 80°27°
53°12° 39°4° 0%Green flag
62°17° 53°11° 6%Yellow flag
63°17° 53°12° 43%Red flagpartial