Do certain weather conditions lead to more home runs?

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

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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 LocationSky CoverTemperature (°F)Home Run Forecast Index™
Anaheim, CAclear sky788
Arlington, TXclear sky858
Houston, TXclear sky808
Los Angeles, CAclear sky768
St. Louis, MObroken clouds678
Sacramento, CAclear sky787
Chicago (NL), ILfew clouds606
Miami, FLclear sky806
Phoenix, AZclear sky836
San Francisco, CAfew clouds736
Boston, MAscattered clouds565
Bronx, NYclear sky585
San Diego, CAclear sky765
Atlanta, GAclear sky604
Tampa, FLclear sky764
Baltimore, MDclear sky543
Chicago (AL), ILfew clouds603
Cincinnati, OHclear sky563
Denver, COclear sky543
Detroit, MIclear sky523
Kansas City, MObroken clouds643
Milwaukee, WIclear sky583
Philadelphia, PAclear sky563
Queens, NYscattered clouds583
Seattle, WAovercast clouds563
Toronto, ONscattered clouds543
Washington, DCclear sky543
Cleveland, OHclear sky491
Minneapolis, MNovercast clouds511
Pittsburgh, PAclear sky491
Data last updated: 1761008168
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