NowOvercastTemperature 66°19°Rain chance 4%Wind 9 mph15 km/hESETrack temperature 73°23°
OvercastTemperature 64°18°Rain chance 3%Wind 8 mph12 km/hESETrack temperature 67°20°
OvercastTemperature 61°16°Rain chance 3%Wind 6 mph9 km/hESETrack temperature 61°16°
OvercastTemperature 59°15°Rain chance 4%Wind 7 mph11 km/hESETrack temperature 59°15°
OvercastTemperature 58°15°Rain chance 4%Wind 7 mph11 km/hESETrack temperature 58°15°
OvercastTemperature 58°14°Rain chance 3%Wind 8 mph13 km/hSETrack temperature 58°14°
OvercastTemperature 58°14°Rain chance 4%Wind 6 mph10 km/hSETrack temperature 58°14°
OvercastTemperature 57°14°Rain chance 4%Wind 5 mph8 km/hSETrack temperature 57°14°
OvercastTemperature 56°14°Rain chance 4%Wind 5 mph8 km/hSETrack temperature 56°14°
OvercastTemperature 55°13°Rain chance 5%Wind 4 mph6 km/hSETrack temperature 55°13°
Light rainTemperature 55°13°Rain chance 3%Wind 10 mph15 km/hSSETrack temperature 55°13°
OvercastTemperature 54°12°Rain chance 7%Wind 5 mph8 km/hSETrack temperature 54°12°
OvercastTemperature 53°12°Rain chance 9%Wind 6 mph10 km/hETrack temperature 53°12°
OvercastTemperature 53°12°Rain chance 13%Wind 4 mph6 km/hESETrack temperature 53°12°
OvercastTemperature 53°12°Rain chance 19%Wind 6 mph10 km/hESETrack temperature 53°12°
OvercastTemperature 55°13°Rain chance 23%Wind 4 mph6 km/hSSETrack temperature 55°13°
OvercastTemperature 55°13°Rain chance 19%Wind 6 mph9 km/hESETrack temperature 55°13°
OvercastTemperature 56°14°Rain chance 19%Wind 6 mph10 km/hESETrack temperature 57°14°
OvercastTemperature 60°15°Rain chance 21%Wind 8 mph13 km/hSETrack temperature 63°17°
OvercastTemperature 61°16°Rain chance 14%Wind 7 mph12 km/hSETrack temperature 64°18°
OvercastTemperature 63°17°Rain chance 13%Wind 7 mph11 km/hSETrack temperature 68°20°
OvercastTemperature 65°18°Rain chance 7%Wind 8 mph12 km/hESETrack temperature 74°23°
OvercastTemperature 66°19°Rain chance 6%Wind 7 mph11 km/hSETrack temperature 71°22°
OvercastTemperature 69°21°Rain chance 5%Wind 10 mph16 km/hSETrack temperature 81°27°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,191ft363mField elevation 860 ft
Air density1.183kg/m³96.6% of standard (RAD)
Water grains40grgrains per lb of dry air
Track temp (est.)73°F23°CAsphalt in 205 W/m² sun
Dew point42°F6°C42% humidity
Barometer30.30inHg1026hPaSteady over 3 h
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 3167°19°51°11° 6%Green flag
TomorrowNov 169°21°53°12° 23%Green flag
MonNov 260°16°53°12° 11%Yellow flag
TueNov 376°24°58°15° 37%Yellow flag
WedNov 466°19°59°15° 59%Red flag
ThuNov 566°19°51°11° 39%Green flag
FriNov 657°14°48°9° 24%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
67°19°51°11°
6%
21 mph35 km/h ESE
85°30°
1,239 ft378 m
8:09 AM · 6:43 PM
Tomorrow Nov 1
Green flag
Overcast
69°21°53°12°
23% 0.06 in1.4 mm
19 mph30 km/h SE
81°27°
1,381 ft421 m
7:10 AM · 5:41 PM
Mon Nov 2
Yellow flaggusty wind
Light drizzle
60°16°53°12°
11% 0.02 in0.4 mm
35 mph57 km/h S
66°19°
1,069 ft326 m
7:12 AM · 5:40 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
76°24°58°15°
37%
38 mph60 km/h S
87°31°
2,284 ft696 m
7:13 AM · 5:39 PM
Wed Nov 4
Red flagrain, gusty wind
Rain
66°19°59°15°
59% 0.37 in9.3 mm
37 mph59 km/h SSW
67°19°
1,704 ft519 m
7:14 AM · 5:38 PM
Thu Nov 5
Green flag
Clear
66°19°51°11°
39%
15 mph23 km/h NNW
87°31°
1,664 ft507 m
7:15 AM · 5:37 PM
Fri Nov 6
Green flag
Overcast
57°14°48°9°
24%
15 mph24 km/h NNE
65°18°
1,233 ft376 m
7:16 AM · 5:36 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
66°19°
42°6°
42%
30.30 inHg1026 hPa
1,191 ft363 m
1.183
40
73°23°
9 mph15 km/h ESE
4%
64°18°
42°5°
44%
30.31 inHg1026 hPa
1,045 ft319 m
1.188
39
67°20°
8 mph12 km/h ESE · gusts 15 mph25 km/h
3%
61°16°
41°5°
47%
30.34 inHg1028 hPa
819 ft250 m
1.196
38
61°16°
6 mph9 km/h ESE · gusts 12 mph20 km/h
3%
59°15°
41°5°
50%
30.34 inHg1027 hPa
724 ft221 m
1.199
38
59°15°
7 mph11 km/h ESE · gusts 16 mph26 km/h
4%
58°15°
40°4°
50%
30.33 inHg1027 hPa
663 ft202 m
1.201
37
58°15°
7 mph11 km/h ESE · gusts 16 mph26 km/h
4%
58°14°
37°3°
46%
30.32 inHg1027 hPa
640 ft195 m
1.202
33
58°14°
8 mph13 km/h SE · gusts 17 mph27 km/h
3%
58°14°
37°3°
46%
30.33 inHg1027 hPa
613 ft187 m
1.203
33
58°14°
6 mph10 km/h SE · gusts 15 mph24 km/h
4%
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 Anderson
Pit box, all week
Every forecast hour for the next seven days at Anderson: 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 Anderson, and a heads-up three days out.
OvercastTemperature 61°16°Rain chance 3%Wind 6 mph9 km/hESETrack temperature 61°16°
Light rainTemperature 55°13°Rain chance 3%Wind 10 mph15 km/hSSETrack temperature 55°13°
60°16° 53°12° 11%Yellow flag
66°19° 59°15° 59%Red flag
66°19° 51°11° 39%Green flag