NowOvercastTemperature 59°15°Rain chance 11%Wind 7 mph11 km/hESETrack temperature 62°17°
OvercastTemperature 58°15°Rain chance 11%Wind 7 mph10 km/hESETrack temperature 59°15°
OvercastTemperature 55°13°Rain chance 10%Wind 6 mph9 km/hENETrack temperature 55°13°
OvercastTemperature 54°12°Rain chance 10%Wind 7 mph11 km/hETrack temperature 54°12°
OvercastTemperature 53°12°Rain chance 10%Wind 6 mph10 km/hETrack temperature 53°12°
OvercastTemperature 53°12°Rain chance 10%Wind 7 mph11 km/hESETrack temperature 53°12°
OvercastTemperature 51°11°Rain chance 9%Wind 5 mph9 km/hESETrack temperature 51°11°
OvercastTemperature 50°10°Rain chance 7%Wind 5 mph8 km/hETrack temperature 50°10°
OvercastTemperature 50°10°Rain chance 6%Wind 6 mph10 km/hESETrack temperature 50°10°
OvercastTemperature 50°10°Rain chance 6%Wind 7 mph11 km/hSETrack temperature 50°10°
OvercastTemperature 51°10°Rain chance 5%Wind 7 mph11 km/hSETrack temperature 51°10°
OvercastTemperature 49°10°Rain chance 6%Wind 6 mph9 km/hSETrack temperature 49°10°
OvercastTemperature 49°9°Rain chance 7%Wind 5 mph8 km/hSETrack temperature 49°9°
OvercastTemperature 49°10°Rain chance 7%Wind 4 mph6 km/hSETrack temperature 49°10°
OvercastTemperature 49°10°Rain chance 8%Wind 4 mph7 km/hSSETrack temperature 49°10°
OvercastTemperature 51°11°Rain chance 9%Wind 5 mph8 km/hSSETrack temperature 51°11°
OvercastTemperature 51°11°Rain chance 10%Wind 4 mph7 km/hSSETrack temperature 52°11°
OvercastTemperature 56°13°Rain chance 8%Wind 10 mph16 km/hSTrack temperature 60°16°
OvercastTemperature 60°16°Rain chance 8%Wind 10 mph17 km/hSTrack temperature 68°20°
OvercastTemperature 63°17°Rain chance 6%Wind 11 mph18 km/hSTrack temperature 72°22°
OvercastTemperature 65°18°Rain chance 5%Wind 7 mph12 km/hSSWTrack temperature 76°24°
OvercastTemperature 66°19°Rain chance 5%Wind 5 mph8 km/hSSWTrack temperature 73°23°
OvercastTemperature 70°21°Rain chance 5%Wind 6 mph10 km/hSSWTrack temperature 79°26°
OvercastTemperature 70°21°Rain chance 5%Wind 6 mph9 km/hSWTrack temperature 77°25°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude619ft189mField elevation 820 ft
Air density1.203kg/m³98.2% of standard (RAD)
Water grains37grgrains per lb of dry air
Track temp (est.)62°F17°CDirt in 89 W/m² sun
Dew point40°F5°C49% humidity
Barometer30.38inHg1029hPaSteady 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 3159°15°47°9° 22%Green flag
TomorrowNov 170°21°49°9° 10%Green flag
MonNov 259°15°53°12° 6%Yellow flag
TueNov 373°23°55°13° 7%Yellow flag
WedNov 468°20°60°15° 59%Red flag
ThuNov 567°19°53°12° 43%Green flag
FriNov 660°15°49°10° 30%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
59°15°47°9°
22%
16 mph26 km/h E
71°21°
619 ft189 m
8:03 AM · 6:33 PM
Tomorrow Nov 1
Green flag
Overcast
70°21°49°9°
10%
18 mph30 km/h SSE
79°26°
1,347 ft411 m
7:04 AM · 5:32 PM
Mon Nov 2
Yellow flaggusty wind
Light drizzle
59°15°53°12°
6% 0.01 in0.2 mm
29 mph46 km/h S
61°16°
838 ft255 m
7:06 AM · 5:31 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
73°23°55°13°
7%
36 mph57 km/h S
83°28°
2,013 ft614 m
7:07 AM · 5:29 PM
Wed Nov 4
Red flagrain, gusty wind
Drizzle
68°20°60°15°
59% 0.19 in4.8 mm
38 mph60 km/h SSW
68°20°
1,670 ft509 m
7:08 AM · 5:28 PM
Thu Nov 5
Green flag
Mostly clear
67°19°53°12°
43%
14 mph22 km/h WNW
84°29°
1,640 ft500 m
7:09 AM · 5:27 PM
Fri Nov 6
Green flag
Drizzle
60°15°49°10°
30% 0.14 in3.5 mm
16 mph26 km/h NNE
66°19°
1,350 ft411 m
7:10 AM · 5:26 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
59°15°
40°5°
49%
30.38 inHg1029 hPa
619 ft189 m
1.203
37
62°17°
7 mph11 km/h ESE · gusts 14 mph22 km/h
11%
58°15°
41°5°
52%
30.39 inHg1029 hPa
551 ft168 m
1.205
38
59°15°
7 mph10 km/h ESE · gusts 16 mph26 km/h
11%
55°13°
41°5°
58%
30.40 inHg1030 hPa
338 ft103 m
1.213
38
55°13°
6 mph9 km/h ENE
10%
54°12°
39°4°
58%
30.40 inHg1029 hPa
235 ft72 m
1.217
36
54°12°
7 mph11 km/h E
10%
53°12°
38°3°
55%
30.39 inHg1029 hPa
220 ft67 m
1.217
34
53°12°
6 mph10 km/h E · gusts 14 mph22 km/h
10%
53°12°
38°3°
56%
30.39 inHg1029 hPa
187 ft57 m
1.218
34
53°12°
7 mph11 km/h ESE · gusts 14 mph22 km/h
10%
51°11°
38°3°
59%
30.40 inHg1030 hPa
81 ft25 m
1.222
34
51°11°
5 mph9 km/h ESE · gusts 13 mph21 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 Millstream
Pit box, all week
Every forecast hour for the next seven days at Millstream: 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 Millstream, and a heads-up three days out.
OvercastTemperature 55°13°Rain chance 10%Wind 6 mph9 km/hENETrack temperature 55°13°
59°15° 53°12° 6%Yellow flag
67°19° 53°12° 43%Green flag