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™
Arlington, TXscattered clouds638
Bronx, NYbroken clouds598
Houston, TXclear sky708
Miami, FLfew clouds828
Queens, NYbroken clouds598
Kansas City, MOclear sky557
Boston, MAlight rain666
Baltimore, MDscattered clouds585
Tampa, FLfew clouds755
Philadelphia, PAbroken clouds574
Phoenix, AZclear sky654
Washington, DCfew clouds584
Sacramento, CAclear sky553
Anaheim, CAclear sky583
Atlanta, GAclear sky543
Cleveland, OHclear sky513
Los Angeles, CAclear sky603
San Diego, CAclear sky563
San Francisco, CAfew clouds583
St. Louis, MOclear sky513
Toronto, ONovercast clouds523
Pittsburgh, PAovercast clouds502
Chicago (AL), ILclear sky491
Chicago (NL), ILclear sky491
Cincinnati, OHclear sky481
Denver, COscattered clouds491
Detroit, MIclear sky491
Milwaukee, WIclear sky451
Minneapolis, MNclear sky501
Seattle, WAovercast clouds511
Data last updated: 1760968569
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