WEATHER FORECAST

The weather in Iowa during early August is usually hot and humid, which is important to keep in mind when planning your visit to Iowa Speedway.

Average Temperatures

• Daytime highs: Often reach the upper 80s to low 90s °F (around 31–34°C)
• Evening lows: Usually drop into the upper 60s to low 70s °F (20–22°C)

Typical Conditions

• Daytime: Expect mostly sunny skies and intense sunshine. High humidity levels can make it feel even warmer, and isolated afternoon thunderstorms are common.
• Evening: Even after sunset, temperatures can stay warm and sticky, especially in crowded grandstands or enclosed areas. Lightweight, breathable clothing is recommended.

Rain Chances
While August isn’t the wettest month in Iowa, pop-up showers and storms can develop quickly during the afternoon or early evening. Bringing a poncho or a small rain jacket is a good idea.

Wind
Winds are typically light, around 5–10 mph (8–16 km/h). Stronger gusts can occur with approaching storms, but wind isn’t usually a major issue.

Sun Protection
UV levels are high in the summer. Be sure to pack sunscreen, sunglasses, and a hat. A cooling towel or portable fan can also help. Many seating areas at Iowa Speedway are not shaded, so come prepared for full sun exposure.