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, CAscattered clouds708
Houston, TXclear sky848
Las Vegas, NVclear sky738
Miami, FLbroken clouds778
Phoenix, AZbroken clouds828
Arlington, TXclear sky827
Atlanta, GAclear sky757
San Diego, CAbroken clouds727
Pittsburgh, PAclear sky646
Denver, COovercast clouds705
Detroit, MIclear sky675
Kansas City, MOclear sky755
Los Angeles, CAscattered clouds655
Minneapolis, MNclear sky735
Sacramento, CAmoderate rain605
San Francisco, CAovercast clouds615
St. Louis, MOclear sky765
Tampa Bay, FLclear sky795
Bronx, NYclear sky674
Cincinnati, OHclear sky704
Milwaukee, WIclear sky714
Tampa, FLclear sky794
Williamsport, PAclear sky663
Baltimore, MDfew clouds683
Boston, MAbroken clouds643
Chicago (AL), ILclear sky693
Chicago (NL), ILclear sky683
Philadelphia, PAfew clouds683
Queens, NYfew clouds673
Seattle, WAclear sky553
Toronto, ONscattered clouds653
Washington, DCclear sky693
Cleveland, OHclear sky641
Data last updated: 1792695368
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