How to Use heat index in a Sentence

heat index

noun
  • Monday will be the hottest of the next few days, with heat indices in the 100s.
    — Adam Del Rosso, CBS News, 27 June 2026
  • Highs will be near 90 degrees in the metro with heat indices in the mid-90s.
    — Chris Shaffer, CBS News, 9 June 2026
  • This could lead to heat index values around 100 degrees.
    — Kansas City Star, 9 June 2026
  • The high will be 86 degrees with a heat index in the 90s for the metroplex.
    — Lauren Bostwick, CBS News, 14 June 2026
  • Peak heat indices range from 102°F to 107°F.
    — Garfield Hylton, The Orlando Sentinel, 11 Aug. 2025
  • Peak heat indices range from 103°F to 107°F.
    — Garfield Hylton, The Orlando Sentinel, 7 Aug. 2025
  • Many of the forecast heat index values look like bowling scores for beginners.
    — Dinah Voyles Pulver, USA Today, 2 July 2026
  • Temperatures will be in the low 80s with heat indices in the mid 80s.
    — Lisa Meadows, CBS News, 7 June 2026
  • Use fan if heat index temperatures are below the high 90s.
    — Anna Skinner, MSNBC Newsweek, 28 Aug. 2025
  • Use fan if heat index temperatures are below the high 90s.
    — Anna Skinner, MSNBC Newsweek, 26 Aug. 2025
  • At a heat index of 105 or higher, heat exhaustion is more likely.
    — Janet Loehrke, USA Today, 25 June 2026
  • Afternoon highs are expected to stay in the low-to-mid 90s with peak heat indices in the triple digits.
    — Garfield Hylton, The Orlando Sentinel, 16 June 2026
  • Highs in the mid 90s inland by Thursday, heat index near 100.
    — Bill Kearney, Sun Sentinel, 4 May 2026
  • This could be the fourth consecutive day of heat index values over 100 degrees.
    — Kansas City Star, 1 July 2026
  • Highs could top 100 degrees for several days in a row, with heat indices as high as 110.
    — Matthew Villafane, CBS News, 1 July 2026
  • The sizzling heat sticks around as highs will stay in the low 90s and heat indices will be in the upper 90s and triple-digits.
    — Lissette Gonzalez, CBS News, 19 June 2026
  • The high will be 95 degrees with a heat index of 103 degrees for the Metroplex.
    — Lauren Bostwick, CBS News, 13 June 2026
  • The Marines worked in hot, humid conditions with a heat index above 100 degrees.
    — Erika I. Ritchie, Oc Register, 27 Nov. 2025
  • These days will bring dangerous heat and humidity with heat indices over 110.
    — The Baltimore Sun, Baltimore Sun, 28 June 2026
  • The weather service says today's high should again reach 99 degrees with a heat index as high as 106.
    — Jack Perry, The Providence Journal, 3 July 2026
  • Exposure to full sunshine can increase heat index values by up to 15 degrees.
    — Dinah Voyles Pulver, USA Today, 3 July 2026
  • Tuesday’s high is forecast to be 93 degrees, with heat index values up to 103.
    — Evan Moore, Charlotte Observer, 6 July 2026
  • Highs will reach the low to mid-90s with heat index values exceeding 100 degrees.
    — Michael Autovino, CBS News, 16 June 2026
  • Regardless of storms, the heat stays in the 90s with heat index values 100+ degrees.
    — Lauren Bostwick, CBS News, 20 June 2026
  • Regardless of storms, the heat stays in the 90s with heat index values 100+ degrees.
    — Lauren Bostwick, CBS News, 21 June 2026
  • Monday will be the worst with highs in the upper 90s, heat indices in the 100s and winds gusts up to 35 mph.
    — Joseph Dames, CBS News, 25 June 2026
  • Miami’s heat index was over 100 degrees.
    — Claire Heddles, Miami Herald, 25 June 2026
  • Highs will reach into the mid- and upper-90s, heat index values will be around 100 degrees, and winds will be breezy from the south.
    — Lauren Bostwick, CBS News, 6 June 2026
  • Peak heat indices exceed 100 degrees in most locations.
    — Garfield Hylton, The Orlando Sentinel, 15 June 2026
  • When heat index values rise above 103, changes start happening in the human body, which can lead to cramps and heat exhaustion.
    — Dinah Voyles Pulver, USA Today, 3 July 2026

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'heat index.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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