National Weather Service United States Department of Commerce

While moderate snow winds down in the Northeast, heavy rainfall will develop across the Northwest

Moderate snow will begin tapering of throughout Thanksgiving Day across New England as the responsible coast low moves off eastern Canada by Friday morning. A weakening front will move into the Pacific Northwest Thanksgiving morning and dissipate bringing light to moderate rain to the Northwest Coast and parts of Northern California and elevation snow through Friday morning.
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Hazardous Weather Conditions

Current Conditions

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Herculaneum MO

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Thanksgiving
Day

Decreasing Clouds

Decreasing
Clouds

High: 34 °F

Tonight

Partly Cloudy

Partly
Cloudy

Low: 24 °F

Friday

Sunny

Sunny

High: 50 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 39 °F

Saturday

Mostly Cloudy

Mostly
Cloudy

High: 62 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 51 °F

Sunday

Partly Sunny

Partly
Sunny

High: 65 °F

Sunday
Night

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 29 °F

Monday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 36 °F

Detailed Forecast

  • Thanksgiving Day Cloudy, then gradually becoming mostly sunny, with a high near 34. Northwest wind 5 to 8 mph.
  • Tonight Partly cloudy, with a low around 24. Calm wind becoming southeast around 5 mph after midnight.
  • Friday Sunny, with a high near 50. South wind 6 to 13 mph, with gusts as high as 21 mph.
  • Friday Night Partly cloudy, with a low around 39. South wind 6 to 9 mph.
  • Saturday Mostly cloudy, with a high near 62. South wind 7 to 10 mph.
  • Saturday Night Mostly cloudy, with a low around 51.
  • Sunday Partly sunny, with a high near 65.
  • Sunday Night A 30 percent chance of rain. Mostly cloudy, with a low around 29.
  • Monday A slight chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 20%.
  • Monday Night Mostly cloudy, with a low around 26.
  • Tuesday Partly sunny, with a high near 45.
  • Tuesday Night Mostly cloudy, with a low around 34.
  • Wednesday A 20 percent chance of rain. Partly sunny, with a high near 48.