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, TXclear sky8910
Houston, TXbroken clouds9010
Phoenix, AZclear sky869
Anaheim, CAovercast clouds668
Baltimore, MDbroken clouds808
Boston, MAfew clouds808
Bronx, NYscattered clouds788
Chicago (AL), ILovercast clouds608
Cleveland, OHovercast clouds708
Los Angeles, CAbroken clouds658
Philadelphia, PAbroken clouds798
Queens, NYbroken clouds778
Washington, DCbroken clouds808
Cincinnati, OHmoderate rain687
Detroit, MIovercast clouds657
San Diego, CAbroken clouds707
San Francisco, CAclear sky757
Miami, FLbroken clouds886
St. Louis, MOovercast clouds746
Tampa, FLovercast clouds876
Sacramento, CAclear sky745
Atlanta, GAovercast clouds785
Milwaukee, WIclear sky665
Minneapolis, MNclear sky645
Pittsburgh, PAlight rain685
Seattle, WAfew clouds634
Chicago (NL), ILovercast clouds603
Denver, COovercast clouds553
Kansas City, MOovercast clouds613
Toronto, ONovercast clouds683
Data last updated: 1759859767
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