NowOvercastTemperature 61°16°Rain chance 15%Wind 6 mph9 km/hESETrack temperature 67°20°
OvercastTemperature 61°16°Rain chance 11%Wind 9 mph15 km/hETrack temperature 64°18°
OvercastTemperature 59°15°Rain chance 9%Wind 6 mph10 km/hESETrack temperature 59°15°
OvercastTemperature 59°15°Rain chance 9%Wind 4 mph6 km/hETrack temperature 59°15°
OvercastTemperature 58°15°Rain chance 9%Wind 1 mph2 km/hESETrack temperature 58°15°
OvercastTemperature 58°14°Rain chance 7%Wind 3 mph5 km/hETrack temperature 58°14°
OvercastTemperature 58°14°Rain chance 8%Wind 3 mph6 km/hESETrack temperature 58°14°
OvercastTemperature 57°14°Rain chance 12%Wind 3 mph5 km/hETrack temperature 57°14°
OvercastTemperature 57°14°Rain chance 11%Wind 5 mph7 km/hSETrack temperature 57°14°
OvercastTemperature 56°13°Rain chance 15%Wind 5 mph7 km/hSETrack temperature 56°13°
OvercastTemperature 56°13°Rain chance 12%Wind 5 mph7 km/hSSETrack temperature 56°13°
OvercastTemperature 56°14°Rain chance 6%Wind 3 mph5 km/hSETrack temperature 56°14°
OvercastTemperature 56°13°Rain chance 8%Wind 5 mph8 km/hESETrack temperature 56°13°
OvercastTemperature 55°13°Rain chance 8%Wind 5 mph9 km/hESETrack temperature 55°13°
Mostly clearTemperature 54°12°Rain chance 8%Wind 0 mph1 km/hNWTrack temperature 54°12°
OvercastTemperature 55°13°Rain chance 8%Wind 4 mph7 km/hESETrack temperature 55°13°
OvercastTemperature 55°13°Rain chance 6%Wind 4 mph7 km/hESETrack temperature 55°13°
Partly cloudyTemperature 57°14°Rain chance 5%Wind 7 mph11 km/hSETrack temperature 60°16°
OvercastTemperature 60°16°Rain chance 5%Wind 8 mph13 km/hSETrack temperature 67°19°
Mostly clearTemperature 62°16°Rain chance 5%Wind 8 mph13 km/hSSETrack temperature 74°23°
Mostly clearTemperature 63°17°Rain chance 5%Wind 8 mph13 km/hSSETrack temperature 78°26°
OvercastTemperature 64°18°Rain chance 5%Wind 8 mph12 km/hSTrack temperature 76°25°
OvercastTemperature 65°18°Rain chance 4%Wind 7 mph11 km/hSSETrack temperature 77°25°
OvercastTemperature 66°19°Rain chance 3%Wind 7 mph12 km/hSSETrack temperature 75°24°
Hours in your time zone (the track's when they match). Track temperature is an estimate.
Pit box
The racer numbers
Density altitude1,052ft321mField elevation 840 ft
Air density1.188kg/m³97.0% of standard (RAD)
Water grains76grgrains per lb of dry air
Track temp (est.)67°F20°CDirt in 181 W/m² sun
Dew point59°F15°C92% humidity
Barometer30.22inHg1023hPaFalling over 3 h
SurfaceWetWet: heavy rain or saturated ground
Rain, last 48 h0.41in10.5mmat 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 3161°16°53°12° 55%Green flag
TomorrowNov 166°19°54°12° 15%Yellow flag
MonNov 271°22°57°14° 90%Yellow flag
TueNov 367°20°49°10° 79%Yellow flag
WedNov 463°17°47°8° 25%Green flag
ThuNov 556°13°47°9° 15%Green flag
FriNov 655°13°51°10° 9%Green flagpartial
Day
Flag
Sky
High / low
Rain
Gusts
Track temp
Density alt.
Sunrise · sunset
Today Oct 31
Green flag
Overcast
61°16°53°12°
55%
24 mph39 km/h ESE
72°22°
1,052 ft321 m
7:39 AM · 6:08 PM
Tomorrow Nov 1
Yellow flaggusty wind
Overcast
66°19°54°12°
15%
25 mph40 km/h SE
78°26°
1,356 ft413 m
6:40 AM · 5:07 PM
Mon Nov 2
Yellow flaggusty wind
Drizzle
71°22°57°14°
90% 0.22 in5.6 mm
43 mph69 km/h SSE
79°26°
2,228 ft679 m
6:42 AM · 5:06 PM
Tue Nov 3
Yellow flaggusty wind
Overcast
67°20°49°10°
79% 1.34 in34.1 mm
37 mph59 km/h SW
70°21°
1,291 ft393 m
6:43 AM · 5:05 PM
Wed Nov 4
Green flag
Overcast
63°17°47°8°
25%
30 mph49 km/h W
76°25°
1,545 ft471 m
6:44 AM · 5:03 PM
Thu Nov 5
Green flag
Overcast
56°13°47°9°
15%
13 mph21 km/h N
61°16°
870 ft265 m
6:45 AM · 5:02 PM
Fri Nov 6
Green flag
Overcast
55°13°51°10°
9%
11 mph18 km/h NNE
62°17°
892 ft272 m
6:47 AM · 5:01 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
61°16°
59°15°
92%
30.22 inHg1023 hPa
1,052 ft321 m
1.188
76
67°20°
6 mph9 km/h ESE
15%
61°16°
59°15°
92%
30.24 inHg1024 hPa
1,022 ft312 m
1.189
75
64°18°
9 mph15 km/h E
11%
59°15°
58°14°
94%
30.25 inHg1024 hPa
899 ft274 m
1.193
73
59°15°
6 mph10 km/h ESE · gusts 16 mph26 km/h
9%
59°15°
57°14°
94%
30.27 inHg1025 hPa
834 ft254 m
1.195
71
59°15°
4 mph6 km/h E · gusts 12 mph20 km/h
9%
58°15°
57°14°
95%
30.26 inHg1025 hPa
798 ft243 m
1.197
70
58°15°
1 mph2 km/h ESE
9%
58°14°
57°14°
96%
30.27 inHg1025 hPa
761 ft232 m
1.198
70
58°14°
3 mph5 km/h E
7%
58°14°
56°13°
95%
30.27 inHg1025 hPa
741 ft226 m
1.199
68
58°14°
3 mph6 km/h ESE
8%
57°14°
56°13°
95%
30.27 inHg1025 hPa
735 ft224 m
1.199
68
57°14°
3 mph5 km/h E
12%
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 Oskaloosa
Pit box, all week
Every forecast hour for the next seven days at Oskaloosa: 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 Oskaloosa, and a heads-up three days out.
OvercastTemperature 59°15°Rain chance 9%Wind 4 mph6 km/hETrack temperature 59°15°
Mostly clearTemperature 54°12°Rain chance 8%Wind 0 mph1 km/hNWTrack temperature 54°12°
Partly cloudyTemperature 57°14°Rain chance 5%Wind 7 mph11 km/hSETrack temperature 60°16°
Mostly clearTemperature 62°16°Rain chance 5%Wind 8 mph13 km/hSSETrack temperature 74°23°
71°22° 57°14° 90%Yellow flag