Do certain weather conditions lead to more home runs?

Yes! Weather conditions change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple indication of how weather will help or hinder baseball flight during a game. The HRFI demonstrates a strong correlation with HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand forecast data by team and game.

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HRF Premium provides on-demand HRF forecast data using up to date weather information along with our trained model. Check out a preview below or view the pricing page for more information.

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HRF forecast value available for each contest, with detailed data throughout the game.

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Detailed weather data and hourly index data for each park.

Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark Location Sky Cover Temperature (°F) Home Run Forecast Index™
Atlanta, GA few clouds 70 7
Bronx, NY scattered clouds 71 7
Chicago (AL), IL scattered clouds 71 7
Cincinnati, OH few clouds 74 7
Cleveland, OH broken clouds 72 7
Detroit, MI broken clouds 73 7
Kansas City, MO broken clouds 71 7
Philadelphia, PA overcast clouds 68 7
Queens, NY scattered clouds 72 7
St. Louis, MO clear sky 71 7
Washington, DC few clouds 68 7
Arlington, TX few clouds 78 6
Baltimore, MD broken clouds 69 6
Boston, MA broken clouds 74 6
Houston, TX overcast clouds 78 6
Pittsburgh, PA overcast clouds 71 6
Anaheim, CA overcast clouds 64 5
Chicago (NL), IL few clouds 70 5
Miami, FL scattered clouds 81 5
Milwaukee, WI overcast clouds 64 5
Phoenix, AZ clear sky 81 5
Tampa Bay, FL scattered clouds 77 5
Toronto, ON broken clouds 71 5
Los Angeles, CA clear sky 61 4
Denver, CO clear sky 59 3
London, England few clouds 68 3
Oakland, CA broken clouds 52 3
San Diego, CA overcast clouds 62 3
San Francisco, CA overcast clouds 51 3
Seattle, WA clear sky 54 3
Minneapolis, MN broken clouds 60 2
Data last updated: 1718880965
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