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 sky788
Houston, TXbroken clouds838
Kansas City, MOclear sky768
Miami, FLbroken clouds837
St. Louis, MOclear sky756
Tampa, FLfew clouds826
Anaheim, CAclear sky655
Atlanta, GAclear sky765
Chicago (NL), ILfew clouds645
Phoenix, AZclear sky715
Cincinnati, OHclear sky654
Denver, COclear sky624
Los Angeles, CAclear sky624
Pittsburgh, PAclear sky574
San Diego, CAclear sky654
San Francisco, CAbroken clouds594
Sacramento, CAclear sky543
Baltimore, MDclear sky613
Boston, MAfew clouds533
Bronx, NYclear sky563
Chicago (AL), ILfew clouds643
Milwaukee, WIbroken clouds643
Minneapolis, MNovercast clouds573
Philadelphia, PAfew clouds593
Queens, NYclear sky563
Toronto, ONclear sky563
Washington, DCclear sky623
Detroit, MIclear sky582
Cleveland, OHclear sky581
Seattle, WAclear sky481
Data last updated: 1760633767
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