NowOvercastTemperature 73°23°Rain chance 1%Wind 13 mph21 km/hETrack temperature 82°28°
OvercastTemperature 71°21°Rain chance 1%Wind 10 mph16 km/hETrack temperature 74°23°
OvercastTemperature 67°20°Rain chance 2%Wind 9 mph14 km/hENETrack temperature 67°20°
OvercastTemperature 66°19°Rain chance 2%Wind 10 mph16 km/hENETrack temperature 66°19°
OvercastTemperature 64°18°Rain chance 2%Wind 11 mph17 km/hENETrack temperature 64°18°
OvercastTemperature 63°17°Rain chance 2%Wind 12 mph20 km/hENETrack temperature 63°17°
OvercastTemperature 64°18°Rain chance 6%Wind 12 mph19 km/hETrack temperature 64°18°
OvercastTemperature 62°17°Rain chance 8%Wind 12 mph19 km/hETrack temperature 62°17°
OvercastTemperature 63°17°Rain chance 9%Wind 11 mph17 km/hETrack temperature 63°17°
Light drizzleTemperature 58°15°Rain chance 11%Wind 12 mph19 km/hETrack temperature 58°15°
Heavy drizzleTemperature 55°13°Rain chance 17%Wind 12 mph19 km/hETrack temperature 55°13°
RainTemperature 54°12°Rain chance 19%Wind 9 mph15 km/hETrack temperature 54°12°
OvercastTemperature 54°12°Rain chance 18%Wind 13 mph21 km/hENETrack temperature 54°12°
RainTemperature 53°11°Rain chance 19%Wind 11 mph17 km/hENETrack temperature 53°11°
Light drizzleTemperature 53°12°Rain chance 11%Wind 11 mph18 km/hENETrack temperature 53°12°
RainTemperature 52°11°Rain chance 11%Wind 11 mph18 km/hENETrack temperature 52°11°
Light drizzleTemperature 52°11°Rain chance 17%Wind 15 mph24 km/hENETrack temperature 52°11°
Heavy drizzleTemperature 52°11°Rain chance 18%Wind 10 mph16 km/hENETrack temperature 52°11°
OvercastTemperature 53°12°Rain chance 20%Wind 9 mph15 km/hENETrack temperature 55°13°
Light drizzleTemperature 55°13°Rain chance 11%Wind 10 mph17 km/hENETrack temperature 59°15°
OvercastTemperature 58°15°Rain chance 10%Wind 12 mph19 km/hETrack temperature 66°19°
OvercastTemperature 58°14°Rain chance 13%Wind 13 mph21 km/hETrack temperature 64°18°
OvercastTemperature 58°14°Rain chance 17%Wind 12 mph20 km/hETrack temperature 63°17°
OvercastTemperature 58°14°Rain chance 21%Wind 12 mph19 km/hETrack temperature 63°17°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,747ft532mField elevation 912 ft
Air density1.164kg/m³95.0% of standard (RAD)
Water grains41grgrains per lb of dry air
Track temp (est.)82°F28°CDirt in 327 W/m² sun
Dew point43°F6°C34% humidity
Barometer30.24inHg1024hPaSteady 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 3174°23°58°14° 6%Yellow flag
TomorrowNov 163°17°51°11° 21%Red flag
MonNov 274°23°50°10° 8%Yellow flag
TueNov 377°25°60°16° 6%Yellow flag
WedNov 472°22°65°19° 54%Red flag
ThuNov 572°22°65°18° 54%Red flag
FriNov 677°25°61°16° 27%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Yellow flaggusty wind
Overcast
74°23°58°14°
6%
29 mph47 km/h E
90°32°
1,854 ft565 m
7:55 AM · 6:48 PM
Tomorrow Nov 1
Red flagrain, gusty wind
Heavy drizzle
63°17°51°11°
21% 0.76 in19.4 mm
33 mph54 km/h ENE
66°19°
770 ft235 m
6:56 AM · 5:47 PM
Mon Nov 2
Yellow flaggusty wind
Overcast
74°23°50°10°
8%
32 mph52 km/h E
92°33°
1,959 ft597 m
6:56 AM · 5:46 PM
Tue Nov 3
Yellow flaggusty wind
Light drizzle
77°25°60°16°
6% 0.02 in0.5 mm
29 mph46 km/h E
94°35°
2,285 ft696 m
6:57 AM · 5:46 PM
Wed Nov 4
Red flagrain
Heavy drizzle
72°22°65°19°
54% 0.72 in18.2 mm
26 mph42 km/h ESE
81°27°
2,281 ft695 m
6:58 AM · 5:45 PM
Thu Nov 5
Red flagrain
Heavy drizzle
72°22°65°18°
54% 0.86 in21.8 mm
14 mph23 km/h E
87°30°
2,303 ft702 m
6:59 AM · 5:44 PM
Fri Nov 6
Green flag
Light drizzle
77°25°61°16°
27% 0.07 in1.8 mm
16 mph26 km/h WNW
96°35°
2,592 ft790 m
7:00 AM · 5:43 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
73°23°
43°6°
34%
30.24 inHg1024 hPa
1,747 ft532 m
1.164
41
82°28°
13 mph21 km/h E
1%
71°21°
43°6°
37%
30.25 inHg1024 hPa
1,592 ft485 m
1.169
42
74°23°
10 mph16 km/h E · gusts 19 mph30 km/h
1%
67°20°
41°5°
39%
30.28 inHg1025 hPa
1,342 ft409 m
1.178
39
67°20°
9 mph14 km/h ENE · gusts 20 mph32 km/h
2%
66°19°
38°3°
36%
30.28 inHg1026 hPa
1,232 ft376 m
1.181
34
66°19°
10 mph16 km/h ENE · gusts 23 mph37 km/h
2%
64°18°
34°1°
32%
30.29 inHg1026 hPa
1,104 ft336 m
1.186
29
64°18°
11 mph17 km/h ENE · gusts 21 mph33 km/h
2%
63°17°
35°2°
35%
30.28 inHg1026 hPa
1,052 ft321 m
1.188
30
63°17°
12 mph20 km/h ENE · gusts 29 mph47 km/h
2%
64°18°
35°2°
35%
30.30 inHg1026 hPa
1,069 ft326 m
1.187
31
64°18°
12 mph19 km/h E · gusts 27 mph44 km/h
6%
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 Senoia
Pit box, all week
Every forecast hour for the next seven days at Senoia: 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 Senoia, and a heads-up three days out.
OvercastTemperature 67°20°Rain chance 2%Wind 9 mph14 km/hENETrack temperature 67°20°
Light drizzleTemperature 58°15°Rain chance 11%Wind 12 mph19 km/hETrack temperature 58°15°
RainTemperature 54°12°Rain chance 19%Wind 9 mph15 km/hETrack temperature 54°12°