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™
Williamsport, PAscattered clouds718
Arlington, TXscattered clouds788
Atlanta, GAclear sky758
Bronx, NYovercast clouds758
Chicago (AL), ILclear sky798
Chicago (NL), ILclear sky778
Cincinnati, OHclear sky778
Cleveland, OHbroken clouds698
Detroit, MImoderate rain708
Houston, TXbroken clouds808
Kansas City, MOclear sky768
Phoenix, AZbroken clouds858
Pittsburgh, PAscattered clouds698
St. Louis, MOclear sky788
Tampa, FLbroken clouds788
Miami, FLlight rain817
Minneapolis, MNclear sky727
Baltimore, MDbroken clouds726
Boston, MAscattered clouds666
Queens, NYovercast clouds766
Washington, DCbroken clouds736
Anaheim, CAclear sky645
Las Vegas, NVclear sky725
Philadelphia, PAbroken clouds755
Sacramento, CAbroken clouds625
Los Angeles, CAclear sky644
Milwaukee, WIbroken clouds694
San Diego, CAclear sky664
San Francisco, CAclear sky584
Tampa Bay, FLscattered clouds804
Toronto, ONclear sky644
Denver, COclear sky633
Seattle, WAovercast clouds543
Data last updated: 1788522966
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