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On Air WeatherPets Network WPET 7 · St. Louis Bureau

St. Louis weather, reported by Jeter

The live pet-owner forecast for St. Louis, Missouri: walk verdicts, paw-safety context, and a very good weather anchor. Real forecast data, reported with more tail wags than your usual station.

Jeter, animated pixel weather reporter
Jeter
Field Correspondent, St. Louis Bureau

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Can you walk your dog in St. Louis right now?

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Waiting on live conditions.

Verdicts use the same temperature bands as our vet-sourced guides to safe walking temperatures and cold-weather limits, including the humidity bump and the 7-second pavement test.

Next 12 hours in St. Louis

10-day St. Louis forecast

Live forecast:  Weather. Updates every few minutes.

What St. Louis weather usually means for pets

Averages tell you what to plan a wardrobe around. Here is St. Louis's typical year with a dog-walk comfort rating for each month, using the same bands as the live verdict above.

MonthAvg highAvg lowTypical midday walk
January40.4°F / 5°C23.8°F / -5°CCoat weather for small dogs
February45.8°F / 8°C27.6°F / -2°CSafe — great walk weather
March56.6°F / 14°C36.7°F / 3°CSafe — great walk weather
April68°F / 20°C47°F / 8°CFine for most dogs
May77.1°F / 25°C57.9°F / 14°CCaution — shade & water
June85.9°F / 30°C67.2°F / 20°CRisky — early/late only
July89.6°F / 32°C71.1°F / 22°CRisky — early/late only
August88.3°F / 31°C69.3°F / 21°CRisky — early/late only
September81.1°F / 27°C60.9°F / 16°CCaution — shade & water
October69.2°F / 21°C49.1°F / 10°CFine for most dogs
November55.5°F / 13°C37.4°F / 3°CSafe — great walk weather
December44.5°F / 7°C28.5°F / -2°CCoat weather for small dogs

Record high: 115°F / 46°C (July 14, 1954) · Record low: -22°F / -30°C (January 5, 1884) · Average snowfall: 16.6″ a year, peaking in January

Climate data: NOAA 1991-2020 U.S. Climate Normals (St. Louis Lambert International Airport).

St. Louis weather facts every pet owner should know

  • St. Louis hit 115F on July 14, 1954, one of the hottest readings ever in a major US city, and normal July highs of 89.6F still sit at the edge of dangerous for dogs.
  • The city's humid subtropical summers make the heat feel worse than the thermometer says, so dawn walks are the St. Louis summer default.
  • January lows average 23.8F, inside the caution zone, and the record is -22F, so winter coats here are for real cold snaps, not just style.
  • With only 16.6 inches of average annual snow, most of it in January (5.7 inches), St. Louis winters are more slush than powder: towel off wet coats to avoid post-walk chills.
St. Louis skyline with the Gateway Arch
St. Louis skyline with the Gateway Arch. Photo: Kiddo27, CC BY-SA 4.0, via Wikimedia Commons

St. Louis pet weather questions

Cautious above 77F, risky above 82F, dangerous at 90F. July highs average 89.6F with heavy Midwest humidity, so summer walks belong at dawn, and the 115F record from 1954 shows how severe heat waves can get.
January lows average 23.8F with highs of just 40.4F. Small and senior dogs need coats most winter days, and keep outings short during cold snaps that approach the 20F danger line.
Usually not for long: about 16.6 inches a year, with 5.7 inches in January, the snowiest month. Slush and refrozen ice are the real hazards, so towel wet paws and bellies after winter walks.
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