NowOvercastTemperature 55°13°Rain chance 6%Wind 6 mph9 km/hESETrack temperature 57°14°
OvercastTemperature 54°12°Rain chance 5%Wind 6 mph10 km/hESETrack temperature 54°12°
OvercastTemperature 53°12°Rain chance 6%Wind 7 mph11 km/hESETrack temperature 53°12°
OvercastTemperature 51°11°Rain chance 6%Wind 5 mph8 km/hENETrack temperature 51°11°
OvercastTemperature 52°11°Rain chance 7%Wind 7 mph10 km/hESETrack temperature 52°11°
OvercastTemperature 52°11°Rain chance 9%Wind 4 mph7 km/hETrack temperature 52°11°
OvercastTemperature 52°11°Rain chance 10%Wind 5 mph8 km/hESETrack temperature 52°11°
OvercastTemperature 51°11°Rain chance 11%Wind 2 mph4 km/hETrack temperature 51°11°
OvercastTemperature 51°11°Rain chance 11%Wind 5 mph8 km/hENETrack temperature 51°11°
OvercastTemperature 50°10°Rain chance 9%Wind 8 mph14 km/hSETrack temperature 50°10°
OvercastTemperature 51°10°Rain chance 10%Wind 9 mph15 km/hSSETrack temperature 51°10°
OvercastTemperature 50°10°Rain chance 9%Wind 6 mph10 km/hSETrack temperature 50°10°
OvercastTemperature 49°10°Rain chance 8%Wind 3 mph6 km/hSSETrack temperature 49°10°
OvercastTemperature 49°10°Rain chance 9%Wind 5 mph8 km/hWSWTrack temperature 49°10°
OvercastTemperature 53°12°Rain chance 8%Wind 8 mph12 km/hSSETrack temperature 53°12°
OvercastTemperature 53°12°Rain chance 8%Wind 6 mph10 km/hSSETrack temperature 54°12°
OvercastTemperature 57°14°Rain chance 8%Wind 10 mph17 km/hSTrack temperature 61°16°
OvercastTemperature 61°16°Rain chance 10%Wind 11 mph19 km/hSSWTrack temperature 70°21°
OvercastTemperature 65°18°Rain chance 10%Wind 13 mph21 km/hSSWTrack temperature 75°24°
OvercastTemperature 67°20°Rain chance 9%Wind 11 mph17 km/hSSWTrack temperature 79°26°
OvercastTemperature 68°20°Rain chance 9%Wind 8 mph13 km/hSSWTrack temperature 81°27°
OvercastTemperature 70°21°Rain chance 8%Wind 6 mph10 km/hSSWTrack temperature 85°29°
OvercastTemperature 71°22°Rain chance 6%Wind 7 mph12 km/hSSWTrack temperature 83°28°
OvercastTemperature 69°21°Rain chance 6%Wind 6 mph10 km/hSTrack temperature 76°24°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude503ft153mField elevation 955 ft
Air density1.207kg/m³98.5% of standard (RAD)
Water grains38grgrains per lb of dry air
Track temp (est.)57°F14°CDirt in 47 W/m² sun
Dew point41°F5°C58% humidity
Barometer30.40inHg1030hPaSteady 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 3157°14°44°7° 18%Green flag
TomorrowNov 171°22°49°10° 11%Green flag
MonNov 258°15°54°12° 5%Yellow flag
TueNov 372°22°55°13° 6%Yellow flag
WedNov 467°19°59°15° 48%Red flag
ThuNov 568°20°53°12° 36%Green flag
FriNov 659°15°50°10° 29%Red flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
57°14°44°7°
18%
15 mph24 km/h ESE
65°18°
611 ft186 m
8:00 AM · 6:30 PM
Tomorrow Nov 1
Green flag
Overcast
71°22°49°10°
11%
22 mph36 km/h S
85°29°
1,514 ft461 m
7:01 AM · 5:28 PM
Mon Nov 2
Yellow flaggusty wind
Light drizzle
58°15°54°12°
5% 0.01 in0.2 mm
30 mph48 km/h S
60°16°
966 ft294 m
7:02 AM · 5:27 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
72°22°55°13°
6%
36 mph58 km/h S
82°28°
2,021 ft616 m
7:03 AM · 5:26 PM
Wed Nov 4
Red flagrain, gusty wind
Rain
67°19°59°15°
48% 0.58 in14.8 mm
38 mph60 km/h S
65°18°
1,652 ft504 m
7:05 AM · 5:25 PM
Thu Nov 5
Green flag
Overcast
68°20°53°12°
36% 0.02 in0.5 mm
13 mph21 km/h W
86°30°
1,901 ft579 m
7:06 AM · 5:24 PM
Fri Nov 6
Red flagrain
Rain
59°15°50°10°
29% 0.49 in12.5 mm
21 mph34 km/h NNE
68°20°
1,507 ft459 m
7:07 AM · 5:23 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 6 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
55°13°
41°5°
58%
30.40 inHg1030 hPa
503 ft153 m
1.207
38
57°14°
6 mph9 km/h ESE · gusts 15 mph24 km/h
6%
54°12°
40°4°
58%
30.43 inHg1030 hPa
415 ft126 m
1.210
37
54°12°
6 mph10 km/h ESE
5%
53°12°
40°4°
62%
30.41 inHg1030 hPa
329 ft100 m
1.213
37
53°12°
7 mph11 km/h ESE · gusts 14 mph23 km/h
6%
51°11°
40°4°
65%
30.41 inHg1030 hPa
248 ft76 m
1.216
37
51°11°
5 mph8 km/h ENE
6%
52°11°
40°5°
65%
30.40 inHg1030 hPa
269 ft82 m
1.215
37
52°11°
7 mph10 km/h ESE · gusts 14 mph22 km/h
7%
52°11°
40°4°
64%
30.41 inHg1030 hPa
260 ft79 m
1.216
37
52°11°
4 mph7 km/h E · gusts 13 mph22 km/h
9%
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 Attica
Pit box, all week
Every forecast hour for the next seven days at Attica: 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 Attica, and a heads-up three days out.
OvercastTemperature 54°12°Rain chance 5%Wind 6 mph10 km/hESETrack temperature 54°12°
58°15° 54°12° 5%Yellow flag
67°19° 59°15° 48%Red flag