
- Track temp
- 77°F25°C
- Rain chance
- 2%
- Wind
- 6mph9km/hE
- Density alt.
- 1,390ft424m
- Barometer 30.26 inHg1025 hPa falling
- Humidity 45%
- Cloud 100%
- UV 1
Forecast updated · Open-Meteo
Hour by hour
Hours in your time zone (the track's when they match). Track temperature is an estimate.
The racer numbers
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.
Day by day
- TodayOct 31
69°21° 54°12° 10%Green flag
- TomorrowNov 1
68°20° 57°14° 28%Green flag
- MonNov 2
65°19° 56°13° 37%Yellow flag
- TueNov 3
76°24° 57°14° 27%Yellow flag
- WedNov 4
67°19° 62°17° 71%Red flag
- ThuNov 5
72°22° 56°13° 43%Green flag
- FriNov 6
62°17° 53°11° 23%Red flagpartial
| Day | Flag | Sky | High / low | Rain | Gusts | Track temp | Density alt. | Sunrise · sunset |
|---|---|---|---|---|---|---|---|---|
| Today Oct 31 | Green flag | 69°21° 54°12° | 10% | 16 mph26 km/h E | 92°33° | 1,390 ft424 m | 8:09 AM · 6:47 PM | |
| Tomorrow Nov 1 | Green flag | 68°20° 57°14° | 28% | 18 mph28 km/h SE | 80°27° | 1,254 ft382 m | 7:10 AM · 5:46 PM | |
| Mon Nov 2 | Yellow flaggusty wind | 65°19° 56°13° | 37% | 32 mph52 km/h S | 78°26° | 1,297 ft395 m | 7:11 AM · 5:44 PM | |
| Tue Nov 3 | Yellow flaggusty wind | 76°24° 57°14° | 27% | 36 mph58 km/h S | 90°32° | 2,121 ft646 m | 7:12 AM · 5:43 PM | |
| Wed Nov 4 | Red flagrain, gusty wind | 67°19° 62°17° | 71% 0.48 in12.1 mm | 35 mph56 km/h S | 68°20° | 1,705 ft520 m | 7:13 AM · 5:42 PM | |
| Thu Nov 5 | Green flag | 72°22° 56°13° | 43% 0.01 in0.2 mm | 13 mph21 km/h N | 96°35° | 1,946 ft593 m | 7:14 AM · 5:41 PM | |
| Fri Nov 6 | Red flagrain | 62°17° 53°11° | 23% 0.19 in4.8 mm | 19 mph31 km/h N | 80°27° | 1,476 ft450 m | 7:15 AM · 5:40 PM |
Flags judge the racing hours, 9 am to 10 pm at the track. Days marked partial are at the edge of the forecast.
Every hour, every number
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 69°21° | 47°8° | 45% | 30.26 inHg1025 hPa | 1,390 ft424 m | 1.176 | 49 | 77°25° | 6 mph9 km/h E | 2% | |
| 67°19° | 47°8° | 48% | 30.27 inHg1025 hPa | 1,219 ft372 m | 1.182 | 48 | 70°21° | 5 mph8 km/h ESE | 2% | |
| 64°18° | 47°8° | 53% | 30.25 inHg1024 hPa | 1,064 ft324 m | 1.187 | 48 | 64°18° | 5 mph9 km/h E | 5% | |
| 62°17° | 47°8° | 58% | 30.27 inHg1025 hPa | 912 ft278 m | 1.193 | 48 | 62°17° | 5 mph8 km/h ENE | 6% | |
| 60°16° | 46°8° | 60% | 30.27 inHg1025 hPa | 789 ft240 m | 1.197 | 47 | 60°16° | 4 mph6 km/h NE | 6% | |
| 59°15° | 46°8° | 63% | 30.31 inHg1026 hPa | 676 ft206 m | 1.201 | 47 | 59°15° | 3 mph6 km/h E | 7% | |
| 59°15° | 45°7° | 60% | 30.33 inHg1027 hPa | 646 ft197 m | 1.202 | 45 | 59°15° | 4 mph6 km/h E · gusts 13 mph21 km/h | 10% |
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.
Plan the whole week at Salem
Pit box, all week
Every forecast hour for the next seven days at Salem: 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 Salem, and a heads-up three days out.
Facts
- Location
- Salem, Indiana
- Layout
- 0.555-mile high-banked oval
- Length
- 0.555 mi (0.89 km)
- Surface
- Asphalt
- Banking
- 33°
- Opened
- 1947
- Series
- ARCA, USAC Silver Crown
- Signature events
- Joe James/Pat O'Connor Memorial
- Time zone
- America/Indiana/Indianapolis
- Elevation
- 794 ft (242 m)