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™
Miami, FLbroken clouds768
Denver, COscattered clouds645
Houston, TXfew clouds735
Phoenix, AZclear sky765
Tampa Bay, FLclear sky695
Anaheim, CAovercast clouds654
Arlington, TXclear sky714
Atlanta, GAclear sky604
Kansas City, MOclear sky634
Los Angeles, CAovercast clouds634
Sacramento, CAovercast clouds604
San Diego, CAscattered clouds664
San Francisco, CAovercast clouds584
Baltimore, MDclear sky543
Boston, MAscattered clouds543
Bronx, NYovercast clouds583
Chicago (AL), ILclear sky593
Las Vegas, NVscattered clouds593
Minneapolis, MNclear sky623
Philadelphia, PAclear sky573
Queens, NYclear sky593
Seattle, WAovercast clouds533
Tampa, FLclear sky683
Washington, DCclear sky523
Chicago (NL), ILclear sky582
Cincinnati, OHclear sky542
Detroit, MIclear sky532
Milwaukee, WIovercast clouds542
St. Louis, MOclear sky602
Toronto, ONclear sky532
Williamsport, PAbroken clouds501
Cleveland, OHclear sky491
Pittsburgh, PAclear sky511
Data last updated: 1792724165
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