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 sky597
Bronx, NYfew clouds597
Queens, NYbroken clouds606
Tampa, FLfew clouds695
Boston, MAovercast clouds624
Houston, TXclear sky644
Miami, FLclear sky764
Philadelphia, PAovercast clouds564
Phoenix, AZclear sky684
Sacramento, CAclear sky583
Anaheim, CAclear sky603
Baltimore, MDbroken clouds533
Denver, COclear sky523
Kansas City, MOclear sky523
Los Angeles, CAclear sky623
San Diego, CAclear sky583
San Francisco, CAclear sky573
Toronto, ONovercast clouds533
Washington, DCbroken clouds523
Atlanta, GAclear sky471
Chicago (AL), ILclear sky431
Chicago (NL), ILclear sky431
Cincinnati, OHclear sky431
Cleveland, OHbroken clouds491
Detroit, MIclear sky451
Milwaukee, WIclear sky391
Minneapolis, MNclear sky451
Pittsburgh, PAovercast clouds481
Seattle, WAovercast clouds501
St. Louis, MOclear sky461
Data last updated: 1760957768
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