NowOvercastTemperature 72°22°Rain chance 1%Wind 7 mph11 km/hENETrack temperature 78°26°
OvercastTemperature 70°21°Rain chance 0%Wind 6 mph10 km/hENETrack temperature 72°22°
OvercastTemperature 66°19°Rain chance 0%Wind 5 mph8 km/hNETrack temperature 66°19°
OvercastTemperature 64°18°Rain chance 0%Wind 5 mph8 km/hENETrack temperature 64°18°
OvercastTemperature 62°17°Rain chance 1%Wind 5 mph8 km/hENETrack temperature 62°17°
OvercastTemperature 62°17°Rain chance 2%Wind 6 mph9 km/hNETrack temperature 62°17°
OvercastTemperature 61°16°Rain chance 1%Wind 6 mph9 km/hNETrack temperature 61°16°
OvercastTemperature 61°16°Rain chance 0%Wind 5 mph7 km/hENETrack temperature 61°16°
OvercastTemperature 59°15°Rain chance 0%Wind 6 mph10 km/hNETrack temperature 59°15°
OvercastTemperature 59°15°Rain chance 0%Wind 5 mph7 km/hENETrack temperature 59°15°
OvercastTemperature 59°15°Rain chance 0%Wind 5 mph8 km/hNNETrack temperature 59°15°
OvercastTemperature 58°14°Rain chance 3%Wind 5 mph8 km/hNETrack temperature 58°14°
OvercastTemperature 57°14°Rain chance 3%Wind 6 mph10 km/hNETrack temperature 57°14°
OvercastTemperature 56°14°Rain chance 2%Wind 7 mph11 km/hNNETrack temperature 56°14°
OvercastTemperature 56°13°Rain chance 1%Wind 9 mph15 km/hNETrack temperature 56°13°
OvercastTemperature 58°14°Rain chance 2%Wind 4 mph7 km/hETrack temperature 58°14°
OvercastTemperature 58°15°Rain chance 2%Wind 9 mph14 km/hNETrack temperature 59°15°
OvercastTemperature 59°15°Rain chance 4%Wind 7 mph12 km/hENETrack temperature 62°17°
OvercastTemperature 60°16°Rain chance 6%Wind 9 mph15 km/hENETrack temperature 63°17°
OvercastTemperature 62°17°Rain chance 2%Wind 8 mph12 km/hNETrack temperature 68°20°
OvercastTemperature 64°18°Rain chance 3%Wind 9 mph15 km/hENETrack temperature 65°18°
Light drizzleTemperature 65°18°Rain chance 2%Wind 8 mph14 km/hENETrack temperature 69°21°
OvercastTemperature 65°18°Rain chance 5%Wind 8 mph13 km/hENETrack temperature 72°22°
OvercastTemperature 65°18°Rain chance 3%Wind 9 mph14 km/hENETrack temperature 68°20°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,003ft306mField elevation 400 ft
Air density1.189kg/m³97.1% of standard (RAD)
Water grains31grgrains per lb of dry air
Track temp (est.)78°F26°CDirt in 175 W/m² sun
Dew point36°F2°C27% humidity
Barometer30.29inHg1026hPaSteady 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 3173°23°54°12° 2%Green flag
TomorrowNov 165°19°56°13° 6%Green flag
MonNov 276°25°56°13° 15%Green flag
TueNov 377°25°58°15° 3%Yellow flag
WedNov 481°27°64°18° 42%Yellow flag
ThuNov 568°20°65°18° 42%Green flag
FriNov 676°25°63°17° 30%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
73°23°54°12°
2%
24 mph39 km/h ENE
92°33°
1,063 ft324 m
7:46 AM · 6:38 PM
Tomorrow Nov 1
Green flag
Light drizzle
65°19°56°13°
6% 0.03 in0.8 mm
26 mph41 km/h NE
72°22°
496 ft151 m
6:47 AM · 5:37 PM
Mon Nov 2
Green flag
Overcast
76°25°56°13°
15%
25 mph40 km/h ENE
90°32°
1,475 ft450 m
6:48 AM · 5:36 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
77°25°58°15°
3%
26 mph42 km/h ENE
95°35°
1,586 ft483 m
6:48 AM · 5:35 PM
Wed Nov 4
Yellow flaggusty wind
Light drizzle
81°27°64°18°
42% 0.04 in1.1 mm
27 mph43 km/h ESE
93°34°
2,101 ft640 m
6:49 AM · 5:34 PM
Thu Nov 5
Green flag
Drizzle
68°20°65°18°
42% 0.46 in11.8 mm
21 mph33 km/h ENE
69°21°
1,378 ft420 m
6:50 AM · 5:34 PM
Fri Nov 6
Green flag
Light drizzle
76°25°63°17°
30% 0.02 in0.5 mm
11 mph17 km/h WNW
93°34°
2,082 ft635 m
6:51 AM · 5:33 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
72°22°
36°2°
27%
30.29 inHg1026 hPa
1,003 ft306 m
1.189
31
78°26°
7 mph11 km/h ENE
1%
70°21°
34°1°
27%
30.30 inHg1026 hPa
824 ft251 m
1.196
29
72°22°
6 mph10 km/h ENE · gusts 16 mph25 km/h
0%
66°19°
34°1°
30%
30.32 inHg1027 hPa
594 ft181 m
1.204
29
66°19°
5 mph8 km/h NE · gusts 12 mph20 km/h
0%
64°18°
35°2°
34%
30.33 inHg1027 hPa
464 ft141 m
1.208
30
64°18°
5 mph8 km/h ENE · gusts 14 mph22 km/h
0%
62°17°
37°3°
39%
30.35 inHg1028 hPa
322 ft98 m
1.214
33
62°17°
5 mph8 km/h ENE · gusts 14 mph23 km/h
1%
62°17°
40°4°
44%
30.35 inHg1028 hPa
291 ft89 m
1.215
36
62°17°
6 mph9 km/h NE · gusts 14 mph22 km/h
2%
61°16°
38°4°
43%
30.36 inHg1028 hPa
228 ft69 m
1.217
34
61°16°
6 mph9 km/h NE · gusts 17 mph27 km/h
1%
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 Modoc
Pit box, all week
Every forecast hour for the next seven days at Modoc: 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 Modoc, and a heads-up three days out.
OvercastTemperature 66°19°Rain chance 0%Wind 5 mph8 km/hNETrack temperature 66°19°
Light drizzleTemperature 65°18°Rain chance 2%Wind 8 mph14 km/hENETrack temperature 69°21°