Wind on the strip—The strip’s direction is not mapped
Computed from the forecast air temperature, dew point and station pressure (NWS formulas; the correction factor by SAE J1349 and the older 60 °F STD standard). 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
TodayNov 863°17°40°5° 1%Green flag
TomorrowNov 963°17°40°4° 9%Green flag
TueNov 1062°17°43°6° 5%Green flag
WedNov 1167°20°45°7° 0%Green flag
ThuNov 1264°18°43°6° 0%Green flag
FriNov 1369°20°42°5° 10%Green flag
SatNov 1468°20°47°8° 10%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Nov 8
Green flag
Overcast
63°17°40°5°
1%
17 mph27 km/h SSE
85°29°
3,376 ft1,029 m
7:30 AM · 5:29 PM
Tomorrow Nov 9
Green flag
Overcast
63°17°40°4°
9%
16 mph26 km/h SE
79°26°
3,403 ft1,037 m
7:31 AM · 5:28 PM
Tue Nov 10
Green flag
Overcast
62°17°43°6°
5%
8 mph13 km/h E
84°29°
3,213 ft979 m
7:32 AM · 5:27 PM
Wed Nov 11
Green flag
Overcast
67°20°45°7°
0%
11 mph18 km/h SE
83°28°
3,588 ft1,094 m
7:34 AM · 5:26 PM
Thu Nov 12
Green flag
Overcast
64°18°43°6°
0%
7 mph12 km/h SE
78°26°
3,574 ft1,089 m
7:35 AM · 5:24 PM
Fri Nov 13
Green flag
Partly cloudy
69°20°42°5°
10%
9 mph14 km/h SSE
83°29°
3,869 ft1,179 m
7:36 AM · 5:23 PM
Sat Nov 14
Green flag
Overcast
68°20°47°8°
10%
22 mph35 km/h SE
80°27°
4,002 ft1,220 m
7:38 AM · 5:22 PM
Flags judge the racing hours: 9 am to 10 pm at the track for a drag strip. National Weather Service alerts raise them. Days marked partial are at the edge of the forecast. How the flags work
Today’s remaining 12 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
58°14°
37°3°
46%
30.16 inHg1021 hPa
3,063 ft934 m
1.119
36
74°23°
7 mph11 km/h S
1%
61°16°
36°2°
39%
30.15 inHg1021 hPa
3,244 ft989 m
1.113
34
82°28°
4 mph6 km/h S
1%
63°17°
35°1°
35%
30.15 inHg1021 hPa
3,332 ft1,016 m
1.110
32
85°29°
2 mph3 km/h WSW
1%
63°17°
31°0°
30%
30.13 inHg1020 hPa
3,376 ft1,029 m
1.109
28
78°26°
3 mph5 km/h NW
1%
62°17°
31°0°
31%
30.11 inHg1020 hPa
3,360 ft1,024 m
1.109
28
71°22°
4 mph7 km/h NNW
1%
58°15°
31°0°
36%
30.10 inHg1019 hPa
3,111 ft948 m
1.117
28
61°16°
6 mph10 km/h N
1%
54°12°
31°-1°
41%
30.11 inHg1020 hPa
2,855 ft870 m
1.126
28
54°12°
6 mph10 km/h NNE
1%
52°11°
29°-2°
40%
30.12 inHg1020 hPa
2,747 ft837 m
1.129
25
52°11°
6 mph10 km/h NNE
1%
51°11°
29°-1°
43%
30.12 inHg1020 hPa
2,677 ft816 m
1.132
26
51°11°
6 mph9 km/h NE
1%
50°10°
30°-1°
46%
30.10 inHg1019 hPa
2,646 ft807 m
1.133
27
50°10°
6 mph10 km/h NE
1%
50°10°
30°-1°
46%
30.10 inHg1019 hPa
2,658 ft810 m
1.133
27
50°10°
5 mph8 km/h ENE
1%
47°9°
30°-1°
50%
30.09 inHg1019 hPa
2,495 ft760 m
1.138
26
47°9°
3 mph5 km/h ESE
1%
Every hour from the forecast, the same arithmetic as the pit box above (NWS density-altitude formula; track temperature is an estimate). Hours are track time.
Raceway Weather Pro
Plan the whole week at Firebird Idaho
Pit box, all week
Every forecast hour for the next seven days at Firebird Idaho: 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 Firebird Idaho, and a heads-up three days out.
Typical for November here: highs around 49°9°, lows 32°0°, rain on 35% of days.
Month by month
Average highs and lows, rain days, gusty days, freezing and hot days for all twelve months at Firebird Idaho, from 5 years of records. Part of Raceway Weather Pro.
OvercastTemperature 54°12°Rain chance 1%Wind 6 mph10 km/hNNETrack temperature 54°12°Density altitude 2,855 ft870 m
69°20° 42°5° 10%Green flag