- Track temp
- 65°F18°C
- Rain chance
- 5%
- Wind
- 6mph10km/hE
- Density alt.
- 1,133ft345m
- Barometer 30.20 inHg1023 hPa falling
- Humidity 94%
- Cloud 100%
- UV 1
Forecast updated · Open-Meteo
Hour by hour
OvercastTemperature 61°16°Rain chance 5%Wind 6 mph10 km/hETrack temperature 65°18°OvercastTemperature 60°15°Rain chance 4%Wind 6 mph10 km/hETrack temperature 60°15°
OvercastTemperature 59°15°Rain chance 6%Wind 9 mph15 km/hESETrack temperature 59°15°OvercastTemperature 58°15°Rain chance 6%Wind 11 mph18 km/hESETrack temperature 58°15°OvercastTemperature 57°14°Rain chance 6%Wind 5 mph8 km/hSETrack temperature 57°14°OvercastTemperature 57°14°Rain chance 6%Wind 6 mph10 km/hSSETrack temperature 57°14°OvercastTemperature 57°14°Rain chance 3%Wind 3 mph5 km/hESETrack temperature 57°14°OvercastTemperature 56°14°Rain chance 6%Wind 5 mph7 km/hENETrack temperature 56°14°OvercastTemperature 56°14°Rain chance 10%Wind 6 mph9 km/hETrack temperature 56°14°
Partly cloudyTemperature 56°13°Rain chance 8%Wind 8 mph12 km/hETrack temperature 56°13°
Mostly clearTemperature 55°13°Rain chance 4%Wind 6 mph10 km/hETrack temperature 55°13°OvercastTemperature 54°12°Rain chance 4%Wind 5 mph9 km/hETrack temperature 54°12°OvercastTemperature 53°12°Rain chance 3%Wind 6 mph10 km/hETrack temperature 53°12°OvercastTemperature 53°12°Rain chance 3%Wind 5 mph9 km/hETrack temperature 53°12°OvercastTemperature 54°12°Rain chance 3%Wind 7 mph11 km/hESETrack temperature 54°12°OvercastTemperature 54°12°Rain chance 4%Wind 6 mph10 km/hSETrack temperature 54°12°OvercastTemperature 55°13°Rain chance 4%Wind 6 mph10 km/hSETrack temperature 56°13°
Partly cloudyTemperature 58°14°Rain chance 3%Wind 9 mph15 km/hESETrack temperature 66°19°OvercastTemperature 60°16°Rain chance 4%Wind 10 mph16 km/hSETrack temperature 70°21°OvercastTemperature 61°16°Rain chance 4%Wind 9 mph14 km/hSSETrack temperature 67°19°OvercastTemperature 61°16°Rain chance 4%Wind 9 mph14 km/hSETrack temperature 69°21°OvercastTemperature 62°17°Rain chance 3%Wind 8 mph13 km/hSSETrack temperature 69°21°OvercastTemperature 63°17°Rain chance 3%Wind 10 mph16 km/hSSETrack temperature 73°23°
Light drizzleTemperature 62°17°Rain chance 3%Wind 10 mph16 km/hSETrack temperature 63°17°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
62°17° 53°12° 49%Red flag - TomorrowNov 163°17° 53°12° 10%Green flag
- MonNov 2
69°21° 59°15° 79%Red flag - TueNov 364°18° 48°9° 79%Yellow flag
- WedNov 462°17° 48°9° 23%Green flag
- ThuNov 556°13° 48°9° 12%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 | Red flagrain | Light rain | 62°17° 53°12° | 49% 0.1 in2.5 mm | 21 mph34 km/h SE | 77°25° | 1,164 ft355 m | 7:41 AM · 6:09 PM |
| Tomorrow Nov 1 | Green flag | Light drizzle | 63°17° 53°12° | 10% 0.05 in1.2 mm | 23 mph37 km/h SE | 73°23° | 1,267 ft386 m | 6:42 AM · 5:08 PM |
| Mon Nov 2 | Red flagrain, gusty wind | Heavy showers | 69°21° 59°15° | 79% 1.08 in27.4 mm | 41 mph66 km/h SSE | 75°24° | 2,219 ft676 m | 6:44 AM · 5:07 PM |
| Tue Nov 3 | Yellow flaggusty wind | Overcast | 64°18° 48°9° | 79% 0.63 in16 mm | 34 mph55 km/h SW | 72°22° | 1,313 ft400 m | 6:45 AM · 5:05 PM |
| Wed Nov 4 | Green flag | Overcast | 62°17° 48°9° | 23% | 32 mph51 km/h W | 78°25° | 1,567 ft478 m | 6:46 AM · 5:04 PM |
| Thu Nov 5 | Green flag | Overcast | 56°13° 48°9° | 12% | 16 mph25 km/h N | 62°17° | 928 ft283 m | 6:47 AM · 5:03 PM |
| Fri Nov 6 | Green flag | Light drizzle | 55°13° 51°10° | 9% 0.01 in0.2 mm | 12 mph19 km/h NE | 62°17° | 922 ft281 m | 6:49 AM · 5:02 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 61°16° | 59°15° | 94% | 30.20 inHg1023 hPa | 1,133 ft345 m | 1.185 | 77 | 65°18° | 6 mph10 km/h E | 5% | |
| 60°15° | 58°15° | 94% | 30.21 inHg1023 hPa | 1,035 ft315 m | 1.188 | 74 | 60°15° | 6 mph10 km/h E · gusts 14 mph23 km/h | 4% | |
| 59°15° | 58°14° | 95% | 30.23 inHg1024 hPa | 990 ft302 m | 1.190 | 73 | 59°15° | 9 mph15 km/h ESE · gusts 19 mph31 km/h | 6% | |
| 58°15° | 57°14° | 95% | 30.24 inHg1024 hPa | 917 ft280 m | 1.192 | 71 | 58°15° | 11 mph18 km/h ESE · gusts 21 mph34 km/h | 6% | |
| 57°14° | 56°14° | 96% | 30.26 inHg1025 hPa | 813 ft248 m | 1.196 | 69 | 57°14° | 5 mph8 km/h SE · gusts 15 mph24 km/h | 6% | |
| 57°14° | 56°13° | 96% | 30.30 inHg1026 hPa | 762 ft232 m | 1.198 | 68 | 57°14° | 6 mph10 km/h SSE · gusts 16 mph25 km/h | 6% | |
| 57°14° | 56°13° | 96% | 30.28 inHg1025 hPa | 757 ft231 m | 1.198 | 68 | 57°14° | 3 mph5 km/h ESE | 3% |
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 Iowa
Pit box, all week
Every forecast hour for the next seven days at Iowa: 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 Iowa, and a heads-up three days out.
A year at Iowa
Typical for October here: highs around 66°19°, lows 48°9°, rain on 24% of days.
5-year averages from the Open-Meteo archive at the track's coordinates.
Getting to Iowa
3333 Rusty Wallace Dr, Newton, IA 50208
Parking
Grandstand ticket holders park free in the General Parking areas; Newton Club and suite guests use designated lots. Accessible parking is first come, first parked with a state placard or plate. iowaspeedway.com
Camping On site
On the grounds behind Turn 1: tent lots and a grass General campground with showers (no hookups), and RV Terrace Hill sites with 50 amp and water. Leave within 90 minutes of Sunday's finish. iowaspeedway.com
Good to know
No outside food or alcohol; only sealed bottled water, in one soft-sided cooler up to 14 x 14 x 14 in. Up to two bags per person. iowaspeedway.com
From the track’s own pages, checked October 2026. Prices and rules change by event, so confirm before you go.
Facts
- Location
- Newton, Iowa
- Layout
- 0.875-mile oval with progressive banking
- Length
- 0.875 mi (1.41 km)
- Surface
- Asphalt
- Banking
- 12°–14°
- Opened
- 2006
- Series
- NASCAR Cup, IndyCar
- Signature events
- Iowa Corn 350 (Cup); IndyCar through 2026
- Time zone
- America/Chicago
- Elevation
- 896 ft (273 m)