Do certain weather conditions lead to more home runs?

Yes! Weather conditions change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple indication of how weather will help or hinder baseball flight during a game. The HRFI demonstrates a strong correlation with HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand forecast data by team and game.

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HRF forecast value available for each contest, with detailed data throughout the 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 Location Sky Cover Temperature (°F) Home Run Forecast Index™
Bronx, NY clear sky 76 8
Houston, TX broken clouds 82 8
Philadelphia, PA overcast clouds 75 8
Washington, DC broken clouds 77 8
Boston, MA broken clouds 74 7
Detroit, MI clear sky 63 7
Queens, NY clear sky 76 7
Williamsport, PA overcast clouds 67 6
Arlington, TX clear sky 72 5
Atlanta, GA overcast clouds 71 5
Baltimore, MD overcast clouds 75 5
Cincinnati, OH overcast clouds 66 5
Pittsburgh, PA scattered clouds 69 5
Cleveland, OH broken clouds 61 4
Los Angeles, CA clear sky 74 4
San Diego, CA scattered clouds 77 4
Tampa Bay, FL broken clouds 82 4
Anaheim, CA clear sky 73 3
Chicago (AL), IL scattered clouds 52 3
Chicago (NL), IL broken clouds 52 3
Kansas City, MO clear sky 57 3
Miami, FL overcast clouds 82 3
Oakland, CA clear sky 68 3
Phoenix, AZ few clouds 69 3
San Francisco, CA few clouds 69 3
St. Louis, MO broken clouds 56 3
Toronto, ON broken clouds 64 3
Denver, CO light snow 29 1
Milwaukee, WI overcast clouds 49 1
Minneapolis, MN broken clouds 46 1
Seattle, WA overcast clouds 54 1
Data last updated: 1730933775
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Give your audience a quick way to understand how weather will affect hitting distance. Enhance your game previews, picks and analysis with hourly forecasts up to two days out. When it comes to fantasy baseball or the sportsbook every edge counts.

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