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As of 12:47 CDT

Weather in Herculaneum, MO

65°Current weather

Herculaneum, Saturday, 31 October, 12:47

Overcast. Feels like 64°. High 67°, low 59°.

Pressure30.24 inHg
Wind4.2 mph E
Humidity60%
Visibility6.2 mi
Dew point49°
Sun, 0169° / 60°0.07Light rain
69 °Light rain

Herculaneum, Sunday, 1 November

Light rain. High 69°, low 60°.

Pressure30.27 inHg
Wind11.2 mph SE
Humidity71%
Visibility6.2 mi
Dew point54°
Mon, 0269° / 57°0Light rain
69 °Light rain

Herculaneum, Monday, 2 November

Light rain. High 69°, low 57°.

Pressure30.06 inHg
Wind8.8 mph SE
Humidity85%
Visibility6.2 mi
Dew point59°
Tue, 0371° / 65°0.26Light rain
71 °Light rain

Herculaneum, Tuesday, 3 November

Light rain. High 71°, low 65°.

Pressure29.85 inHg
Wind16.2 mph S
Humidity79%
Visibility6.2 mi
Dew point64°
Wed, 0466° / 56°0.39Rain
66 °Rain

Herculaneum, Wednesday, 4 November

Rain. High 66°, low 56°.

Pressure29.74 inHg
Wind9 mph W
Humidity69%
Visibility6.2 mi
Dew point54°
Thu, 0562° / 49°0Overcast
62 °Overcast

Herculaneum, Thursday, 5 November

Overcast. High 62°, low 49°.

Pressure29.85 inHg
Wind9.4 mph W
Humidity59%
Visibility—
Dew point46°
Fri, 0663° / 53°0Overcast
63 °Overcast

Herculaneum, Friday, 6 November

Overcast. High 63°, low 53°.

Pressure29.88 inHg
Wind9.2 mph N
Humidity54%
Visibility—
Dew point43°
Sat, 0761° / 47°0Overcast
61 °Overcast

Herculaneum, Saturday, 7 November

Overcast. High 61°, low 47°.

Pressure29.91 inHg
Wind4 mph NE
Humidity52%
Visibility—
Dew point41°
Sun, 0861° / 48°0Overcast
61 °Overcast

Herculaneum, Sunday, 8 November

Overcast. High 61°, low 48°.

Pressure29.91 inHg
Wind12.6 mph N
Humidity43%
Visibility—
Dew point36°
Mon, 0959° / 46°0Overcast
59 °Overcast

Herculaneum, Monday, 9 November

Overcast. High 59°, low 46°.

Pressure30.00 inHg
Wind10.2 mph N
Humidity69%
Visibility—
Dew point44°
Tue, 1065° / 47°0Clear
65 °Clear

Herculaneum, Tuesday, 10 November

Clear. High 65°, low 47°.

Pressure30.12 inHg
Wind4.9 mph NW
Humidity51%
Visibility—
Dew point43°
Wed, 1164° / 50°0Overcast
64 °Overcast

Herculaneum, Wednesday, 11 November

Overcast. High 64°, low 50°.

Pressure29.94 inHg
Wind14.2 mph NW
Humidity47%
Visibility—
Dew point41°
Thu, 1260° / 48°0Overcast
60 °Overcast

Herculaneum, Thursday, 12 November

Overcast. High 60°, low 48°.

Pressure30.06 inHg
Wind13.5 mph NW
Humidity57%
Visibility—
Dew point43°
Fri, 1363° / 42°0Clear
63 °Clear

Herculaneum, Friday, 13 November

Clear. High 63°, low 42°.

Pressure30.15 inHg
Wind5.5 mph SW
Humidity45%
Visibility—
Dew point36°
Sat, 1469° / 48°0Mostly clear
69 °Mostly clear

Herculaneum, Saturday, 14 November

Mostly clear. High 69°, low 48°.

Pressure30.06 inHg
Wind9.8 mph NW
Humidity35%
Visibility—
Dew point36°
Sun, 1561° / 48°0Overcast
61 °Overcast

Herculaneum, Sunday, 15 November

Overcast. High 61°, low 48°.

Pressure30.12 inHg
Wind4.6 mph NW
Humidity28%
Visibility—
Dew point25°

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.