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™
Las Vegas, NVclear sky8910
Phoenix, AZclear sky9510
Anaheim, CAfew clouds698
Arlington, TXfew clouds818
Houston, TXclear sky798
Denver, COclear sky687
Kansas City, MOlight rain687
Atlanta, GAovercast clouds756
Los Angeles, CAfew clouds676
Minneapolis, MNmoderate rain676
San Diego, CAfew clouds706
Bronx, NYclear sky695
Chicago (NL), ILovercast clouds685
Cincinnati, OHovercast clouds635
Detroit, MIovercast clouds595
Miami, FLscattered clouds805
Milwaukee, WIovercast clouds635
Queens, NYclear sky695
Sacramento, CAclear sky635
Seattle, WAclear sky595
St. Louis, MObroken clouds665
Tampa Bay, FLovercast clouds795
Tampa, FLovercast clouds795
Baltimore, MDclear sky644
Chicago (AL), ILovercast clouds634
Cleveland, OHovercast clouds584
Philadelphia, PAclear sky634
San Francisco, CAfew clouds594
Washington, DCclear sky634
Boston, MAclear sky613
Pittsburgh, PAbroken clouds583
Toronto, ONclear sky593
Data last updated: 1784894165
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