EN
English Español

As of 03:07 CDT

Weather in Herculaneum, MO

53°Current weather

Herculaneum, Wednesday, 28 October, 03:07

Clear. Feels like 52°. High 78°, low 50°.

Pressure30.18 inHg
Wind4.2 mph S
Humidity90%
Visibility6.2 mi
Dew point49°
Thu, 2981° / 53°0Light rain
81 °Light rain

Herculaneum, Thursday, 29 October

Light rain. High 81°, low 53°.

Pressure30.15 inHg
Wind4.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point58°
Fri, 3077° / 59°0Overcast
77 °Overcast

Herculaneum, Friday, 30 October

Overcast. High 77°, low 59°.

Pressure30.24 inHg
Wind4.7 mph SE
Humidity66%
Visibility6.2 mi
Dew point60°
Sat, 3173° / 60°0Overcast
73 °Overcast

Herculaneum, Saturday, 31 October

Overcast. High 73°, low 60°.

Pressure30.24 inHg
Wind2 mph E
Humidity68%
Visibility6.2 mi
Dew point58°
Sun, 0172° / 56°0.01Light rain
72 °Light rain

Herculaneum, Sunday, 1 November

Light rain. High 72°, low 56°.

Pressure30.18 inHg
Wind9.7 mph SE
Humidity58%
Visibility—
Dew point54°
Mon, 0267° / 59°0.2Rain
67 °Rain

Herculaneum, Monday, 2 November

Rain. High 67°, low 59°.

Pressure29.94 inHg
Wind10.5 mph SE
Humidity69%
Visibility—
Dew point55°
Tue, 0362° / 45°0.43Rain
62 °Rain

Herculaneum, Tuesday, 3 November

Rain. High 62°, low 45°.

Pressure29.44 inHg
Wind14.6 mph W
Humidity86%
Visibility—
Dew point44°
Wed, 0450° / 45°0.22Light rain
50 °Light rain

Herculaneum, Wednesday, 4 November

Light rain. High 50°, low 45°.

Pressure29.83 inHg
Wind10 mph N
Humidity90%
Visibility—
Dew point45°
Thu, 0563° / 43°0Partly cloudy
63 °Partly cloudy

Herculaneum, Thursday, 5 November

Partly cloudy. High 63°, low 43°.

Pressure30.00 inHg
Wind8 mph W
Humidity51%
Visibility—
Dew point40°
Fri, 0657° / 50°0.01Light rain
57 °Light rain

Herculaneum, Friday, 6 November

Light rain. High 57°, low 50°.

Pressure29.91 inHg
Wind10.8 mph W
Humidity62%
Visibility—
Dew point43°
Sat, 0753° / 43°0.01Light rain
53 °Light rain

Herculaneum, Saturday, 7 November

Light rain. High 53°, low 43°.

Pressure30.03 inHg
Wind9.8 mph NW
Humidity79%
Visibility—
Dew point45°
Sun, 0854° / 43°0Overcast
54 °Overcast

Herculaneum, Sunday, 8 November

Overcast. High 54°, low 43°.

Pressure30.24 inHg
Wind6.2 mph NE
Humidity49%
Visibility—
Dew point34°
Mon, 0962° / 40°0Partly cloudy
62 °Partly cloudy

Herculaneum, Monday, 9 November

Partly cloudy. High 62°, low 40°.

Pressure30.06 inHg
Wind11.4 mph S
Humidity54%
Visibility—
Dew point41°
Tue, 1067° / 55°0.05Light rain
67 °Light rain

Herculaneum, Tuesday, 10 November

Light rain. High 67°, low 55°.

Pressure29.80 inHg
Wind14.5 mph S
Humidity59%
Visibility—
Dew point51°
Wed, 1149° / 40°0.04Light rain
49 °Light rain

Herculaneum, Wednesday, 11 November

Light rain. High 49°, low 40°.

Pressure29.83 inHg
Wind17.2 mph W
Humidity86%
Visibility—
Dew point37°
Thu, 1246° / 34°0Overcast
46 °Overcast

Herculaneum, Thursday, 12 November

Overcast. High 46°, low 34°.

Pressure30.27 inHg
Wind8.3 mph NW
Humidity45%
Visibility—
Dew point24°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Herculaneum, MO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Herculaneum, MO since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.