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Herculaneum, MO Weather Forecast

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Herculaneum, MO Weather Forecast

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Herculaneum MO weather - Overcast - 70°F
Overcast
70°F
Updated 2:49 pm
Feels Like 71°F
Humidity 87%
Wind NNE 8 mph
Barometer  30.02 in
Dew Point 66°F
Herculaneum MO weather - Overcast - 21°C
Overcast
21°C
Updated 2:49 pm
Feels Like 22°C
Humidity 87%
Wind NNE 13 km/h
Barometer  101.7 kPa
Dew Point 19°C
WX Settings

Herculaneum Weather Forecast

THIS AFTERNOON TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Herculaneum, MO Weather - This Afternoon Chance Of T-Storm Herculaneum, MO Weather - Tonight Drizzle Herculaneum, MO Weather - Tuesday Drizzle Herculaneum, MO Weather - Tuesday Night Mostly Cloudy Herculaneum, MO Weather - Wednesday Mostly Sunny Herculaneum, MO Weather - Wednesday Night Partly Cloudy Herculaneum, MO Weather - Thursday Partly Cloudy Herculaneum, MO Weather - Friday Partly Cloudy Herculaneum, MO Weather - Friday Night Mostly Cloudy Herculaneum, MO Weather - Saturday Chance Of Showers Herculaneum, MO Weather - Saturday Night Chance Of Showers Herculaneum, MO Weather - Sunday Chance Of Showers
Chance of T-Storm Drizzle Drizzle Mostly Cloudy Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Chance of Showers Chance of Showers Chance of Showers
Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
 Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C		 Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C		 Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C		 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 80°FHi: 27°C
POP: 30% POP: 20% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 127 PM CDT Mon Sep 21 2026 Herculaneum, MO Weather - WeatherWorld.com

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Issued: 1245 PM CDT Mon Sep 21 2026

Key Messages

  • Scattered showers and thunderstorms will come to an end later this morning.
  • Seasonably cool temperatures are expected for the rest of the week.

Aviation

/18Z TAFS THROUGH 00Z WEDNESDAY/... Issued at 1245 PM CDT Mon Sep 21 2026

A widespread field of low MVFR/IFR stratus is positioned across the Midwest, encompassing all local terminals. This stratus will continue impacting the region into tomorrow with low confidence regarding the improvement of ceilings tomorrow. For the period, the mos...