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 sky758
Cleveland, OHmoderate rain628
San Francisco, CAfew clouds678
Tampa, FLscattered clouds818
Washington, DCbroken clouds708
Boston, MAfew clouds687
Houston, TXclear sky777
Los Angeles, CAclear sky747
Miami, FLbroken clouds787
Phoenix, AZclear sky777
Arlington, TXclear sky746
Philadelphia, PAbroken clouds676
Queens, NYfew clouds666
San Diego, CAbroken clouds746
Atlanta, GAbroken clouds705
Baltimore, MDbroken clouds665
Chicago (NL), ILovercast clouds575
Sacramento, CAclear sky685
Williamsport, PAclear sky634
Bronx, NYclear sky664
Cincinnati, OHovercast clouds644
Kansas City, MOclear sky574
Las Vegas, NVclear sky664
Seattle, WAbroken clouds564
St. Louis, MOovercast clouds594
Tampa Bay, FLscattered clouds814
Toronto, ONlight rain644
Chicago (AL), ILovercast clouds573
Denver, CObroken clouds543
Detroit, MIovercast clouds623
Milwaukee, WIovercast clouds543
Pittsburgh, PAovercast clouds653
Minneapolis, MNovercast clouds472
Data last updated: 1793832967
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