NowOvercastTemperature 51°11°Rain chance 7%Wind 7 mph12 km/hESETrack temperature 52°11°
OvercastTemperature 51°10°Rain chance 11%Wind 6 mph10 km/hESETrack temperature 51°11°
OvercastTemperature 50°10°Rain chance 7%Wind 6 mph9 km/hESETrack temperature 50°10°
OvercastTemperature 50°10°Rain chance 6%Wind 5 mph8 km/hESETrack temperature 50°10°
OvercastTemperature 50°10°Rain chance 4%Wind 6 mph10 km/hESETrack temperature 50°10°
OvercastTemperature 50°10°Rain chance 2%Wind 6 mph10 km/hSETrack temperature 50°10°
OvercastTemperature 51°10°Rain chance 2%Wind 6 mph9 km/hSETrack temperature 51°10°
OvercastTemperature 51°11°Rain chance 5%Wind 7 mph11 km/hSSETrack temperature 51°11°
OvercastTemperature 52°11°Rain chance 9%Wind 6 mph10 km/hSSETrack temperature 52°11°
OvercastTemperature 53°11°Rain chance 3%Wind 7 mph12 km/hSTrack temperature 53°11°
OvercastTemperature 53°12°Rain chance 4%Wind 7 mph11 km/hSSETrack temperature 53°12°
OvercastTemperature 53°11°Rain chance 6%Wind 8 mph13 km/hSTrack temperature 53°11°
OvercastTemperature 51°11°Rain chance 5%Wind 9 mph14 km/hSTrack temperature 51°11°
OvercastTemperature 53°12°Rain chance 4%Wind 7 mph12 km/hSTrack temperature 53°12°
OvercastTemperature 52°11°Rain chance 4%Wind 7 mph12 km/hSTrack temperature 52°11°
OvercastTemperature 52°11°Rain chance 6%Wind 7 mph11 km/hSTrack temperature 52°11°
OvercastTemperature 51°11°Rain chance 5%Wind 6 mph10 km/hSSETrack temperature 51°11°
OvercastTemperature 53°12°Rain chance 5%Wind 7 mph11 km/hSTrack temperature 53°12°
OvercastTemperature 55°13°Rain chance 4%Wind 6 mph9 km/hSSETrack temperature 57°14°
OvercastTemperature 57°14°Rain chance 4%Wind 7 mph12 km/hSTrack temperature 61°16°
Partly cloudyTemperature 60°16°Rain chance 5%Wind 13 mph20 km/hSTrack temperature 69°21°
Heavy drizzleTemperature 58°15°Rain chance 5%Wind 10 mph17 km/hSTrack temperature 60°16°
OvercastTemperature 61°16°Rain chance 6%Wind 12 mph20 km/hSTrack temperature 68°20°
OvercastTemperature 61°16°Rain chance 5%Wind 12 mph20 km/hSTrack temperature 67°19°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude519ft158mField elevation 899 ft
Air density1.206kg/m³98.5% of standard (RAD)
Water grains51grgrains per lb of dry air
Track temp (est.)52°F11°CDirt in 34 W/m² sun
Dew point48°F9°C89% humidity
Barometer30.12inHg1020hPaSteady 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 3151°11°39°4° 11%Green flag
TomorrowNov 161°16°51°11° 9%Red flag
MonNov 257°14°54°12° 97%Red flag
TueNov 349°10°42°5° 95%Red flag
WedNov 452°11°43°6° 46%Yellow flag
ThuNov 552°11°40°4° 10%Green flag
FriNov 658°14°44°7° 3%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
51°11°39°4°
11%
16 mph26 km/h ESE
54°12°
543 ft166 m
8:06 AM · 6:12 PM
Tomorrow Nov 1
Red flagrain
Heavy drizzle
61°16°51°11°
9% 0.04 in1.1 mm
26 mph41 km/h SSE
69°21°
1,297 ft395 m
7:08 AM · 5:11 PM
Mon Nov 2
Red flagrain, gusty wind
Heavy showers
57°14°54°12°
97% 2.78 in70.7 mm
39 mph62 km/h E
57°14°
1,705 ft520 m
7:09 AM · 5:09 PM
Tue Nov 3
Red flagrain, gusty wind
Drizzle
49°10°42°5°
95% 0.47 in12 mm
38 mph61 km/h NW
48°9°
1,093 ft333 m
7:11 AM · 5:08 PM
Wed Nov 4
Yellow flaggusty wind
Light drizzle
52°11°43°6°
46% 0.22 in5.7 mm
34 mph55 km/h NW
55°13°
900 ft274 m
7:12 AM · 5:06 PM
Thu Nov 5
Green flag
Overcast
52°11°40°4°
10%
15 mph25 km/h S
65°18°
611 ft186 m
7:14 AM · 5:05 PM
Fri Nov 6
Green flag
Overcast
58°14°44°7°
3%
23 mph37 km/h S
68°20°
1,232 ft376 m
7:15 AM · 5:03 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 8 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
51°11°
48°9°
89%
30.12 inHg1020 hPa
519 ft158 m
1.206
51
52°11°
7 mph12 km/h ESE
7%
51°10°
48°9°
92%
30.13 inHg1020 hPa
479 ft146 m
1.208
52
51°11°
6 mph10 km/h ESE · gusts 13 mph21 km/h
11%
50°10°
48°9°
94%
30.14 inHg1021 hPa
429 ft131 m
1.210
52
50°10°
6 mph9 km/h ESE
7%
50°10°
48°9°
94%
30.16 inHg1021 hPa
402 ft123 m
1.211
51
50°10°
5 mph8 km/h ESE
6%
50°10°
48°9°
94%
30.14 inHg1021 hPa
422 ft129 m
1.210
51
50°10°
6 mph10 km/h ESE
4%
50°10°
49°9°
95%
30.12 inHg1020 hPa
480 ft146 m
1.208
53
50°10°
6 mph10 km/h SE
2%
51°10°
49°10°
96%
30.12 inHg1020 hPa
492 ft150 m
1.208
54
51°10°
6 mph9 km/h SE · gusts 13 mph21 km/h
2%
51°11°
50°10°
96%
30.12 inHg1020 hPa
551 ft168 m
1.205
55
51°11°
7 mph11 km/h SSE
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 Ada
Pit box, all week
Every forecast hour for the next seven days at Ada: 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 Ada, and a heads-up three days out.
OvercastTemperature 50°10°Rain chance 6%Wind 5 mph8 km/hESETrack temperature 50°10°
Partly cloudyTemperature 60°16°Rain chance 5%Wind 13 mph20 km/hSTrack temperature 69°21°
Heavy drizzleTemperature 58°15°Rain chance 5%Wind 10 mph17 km/hSTrack temperature 60°16°
57°14° 54°12° 97%Red flag