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 sky658
Cleveland, OHclear sky618
Houston, TXclear sky708
Kansas City, MOclear sky678
Phoenix, AZovercast clouds728
St. Louis, MOovercast clouds688
Boston, MAclear sky627
Bronx, NYclear sky617
Chicago (NL), ILscattered clouds637
Miami, FLovercast clouds767
Minneapolis, MNclear sky607
Philadelphia, PAscattered clouds627
Queens, NYclear sky617
Cincinnati, OHovercast clouds606
Anaheim, CAscattered clouds585
Baltimore, MDclear sky625
Chicago (AL), ILscattered clouds635
Toronto, ONfew clouds575
Washington, DCclear sky625
Atlanta, GAfew clouds624
Detroit, MIclear sky594
Los Angeles, CAovercast clouds564
Mexico City, Mexicoclear sky644
Milwaukee, WIfew clouds644
Pittsburgh, PAfew clouds614
Sacramento, CAovercast clouds544
San Diego, CAbroken clouds594
Tampa Bay, FLclear sky744
Denver, COovercast clouds563
San Francisco, CAbroken clouds543
Seattle, WAclear sky553
Tampa, FLclear sky743
Data last updated: 1777902970
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