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, TXovercast clouds808
Houston, TXscattered clouds828
Tampa, FLbroken clouds838
Phoenix, AZfew clouds787
Atlanta, GAbroken clouds766
Denver, COclear sky676
Anaheim, CAfew clouds705
Cincinnati, OHbroken clouds645
Cleveland, OHovercast clouds584
Kansas City, MOovercast clouds534
Los Angeles, CAclear sky704
Miami, FLbroken clouds814
Pittsburgh, PAbroken clouds634
San Diego, CAscattered clouds664
San Francisco, CAfew clouds634
St. Louis, MOovercast clouds594
Washington, DCbroken clouds564
Sacramento, CAclear sky633
Baltimore, MDovercast clouds543
Minneapolis, MNovercast clouds523
Boston, MAovercast clouds381
Bronx, NYmoderate rain401
Chicago (AL), ILovercast clouds481
Chicago (NL), ILovercast clouds471
Detroit, MImoderate rain401
Milwaukee, WIovercast clouds411
Philadelphia, PAovercast clouds471
Queens, NYmoderate rain411
Seattle, WAovercast clouds481
Toronto, ONlight rain371
Data last updated: 1772740572
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