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HRF Premium provides on-demand HRF forecast data using up to date weather information along with our trained model. Check out a preview below or view the pricing page for more information.
HRF forecast value available for each contest, with detailed data throughout the game.
Detailed weather data and hourly index data for each park.
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™ | |
|---|---|---|---|---|
| Anaheim, CA |  clear sky | 88 | 10 | |
| Las Vegas, NV |  overcast clouds | 96 | 10 | |
| Los Angeles, CA | clear sky | 86 | 10 | |
| Phoenix, AZ | overcast clouds | 104 | 10 | |
| Arlington, TX | clear sky | 93 | 8 | |
| Chicago (NL), IL |  few clouds | 73 | 8 | |
| Houston, TX | overcast clouds | 82 | 8 | |
| Sacramento, CA | overcast clouds | 75 | 8 | |
| San Diego, CA | clear sky | 81 | 8 | |
| Tampa, FL | overcast clouds | 79 | 8 | |
| Denver, CO | overcast clouds | 79 | 7 | |
| Boston, MA |  scattered clouds | 71 | 6 | |
| Bronx, NY | overcast clouds | 75 | 6 | |
| Chicago (AL), IL | scattered clouds | 73 | 6 | |
| Milwaukee, WI | scattered clouds | 70 | 6 | |
| San Francisco, CA | broken clouds | 66 | 6 | |
| Atlanta, GA | broken clouds | 77 | 5 | |
| Cincinnati, OH | scattered clouds | 71 | 5 | |
| Detroit, MI | clear sky | 68 | 5 | |
| Kansas City, MO | clear sky | 75 | 5 | |
| Minneapolis, MN | overcast clouds | 73 | 5 | |
| St. Louis, MO | scattered clouds | 75 | 5 | |
| Washington, DC | clear sky | 75 | 5 | |
| Baltimore, MD | clear sky | 72 | 4 | |
| Cleveland, OH | clear sky | 63 | 4 | |
| Miami, FL |  light rain | 84 | 4 | |
| Philadelphia, PA | scattered clouds | 72 | 4 | |
| Pittsburgh, PA | few clouds | 65 | 4 | |
| Tampa Bay, FL | overcast clouds | 81 | 4 | |
| Williamsport, PA | clear sky | 63 | 3 | |
| Queens, NY | overcast clouds | 76 | 3 | |
| Seattle, WA | overcast clouds | 64 | 3 | |
| Toronto, ON | clear sky | 66 | 3 |
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