EN
English Español

As of 02:29 CST

Weather in Herculaneum, MO

59°Current weather

Herculaneum, Monday, 2 November, 02:29

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

Pressure30.12 inHg
Wind6.3 mph SE
Humidity97%
Visibility6.2 mi
Dew point58°
Tue, 0371° / 65°1.1Heavy rain
71 °Heavy rain

Herculaneum, Tuesday, 3 November

Heavy rain. High 71°, low 65°.

Pressure29.83 inHg
Wind17.4 mph S
Humidity77%
Visibility6.2 mi
Dew point64°
Wed, 0464° / 56°0.02Light rain
64 °Light rain

Herculaneum, Wednesday, 4 November

Light rain. High 64°, low 56°.

Pressure29.83 inHg
Wind10.9 mph W
Humidity63%
Visibility6.2 mi
Dew point47°
Thu, 0563° / 48°0Clear
63 °Clear

Herculaneum, Thursday, 5 November

Clear. High 63°, low 48°.

Pressure29.83 inHg
Wind10.6 mph W
Humidity51%
Visibility6.2 mi
Dew point43°
Fri, 0657° / 47°0Overcast
57 °Overcast

Herculaneum, Friday, 6 November

Overcast. High 57°, low 47°.

Pressure29.97 inHg
Wind9 mph NW
Humidity65%
Visibility—
Dew point44°
Sat, 0758° / 50°0.01Light rain
58 °Light rain

Herculaneum, Saturday, 7 November

Light rain. High 58°, low 50°.

Pressure30.09 inHg
Wind5.9 mph W
Humidity65%
Visibility—
Dew point44°
Sun, 0853° / 44°0.12Light rain
53 °Light rain

Herculaneum, Sunday, 8 November

Light rain. High 53°, low 44°.

Pressure29.80 inHg
Wind16.4 mph NW
Humidity87%
Visibility—
Dew point41°
Mon, 0952° / 42°0Overcast
52 °Overcast

Herculaneum, Monday, 9 November

Overcast. High 52°, low 42°.

Pressure30.06 inHg
Wind11.7 mph NW
Humidity53%
Visibility—
Dew point34°
Tue, 1060° / 40°0Clear
60 °Clear

Herculaneum, Tuesday, 10 November

Clear. High 60°, low 40°.

Pressure30.06 inHg
Wind10.6 mph W
Humidity43%
Visibility—
Dew point34°
Wed, 1159° / 40°0Light rain
59 °Light rain

Herculaneum, Wednesday, 11 November

Light rain. High 59°, low 40°.

Pressure30.21 inHg
Wind4.4 mph NE
Humidity36%
Visibility—
Dew point30°
Thu, 1259° / 43°0.02Light rain
59 °Light rain

Herculaneum, Thursday, 12 November

Light rain. High 59°, low 43°.

Pressure29.97 inHg
Wind9.5 mph NW
Humidity61%
Visibility—
Dew point43°
Fri, 1351° / 39°0Overcast
51 °Overcast

Herculaneum, Friday, 13 November

Overcast. High 51°, low 39°.

Pressure30.18 inHg
Wind11.9 mph N
Humidity52%
Visibility—
Dew point31°
Sat, 1470° / 34°0Clear
70 °Clear

Herculaneum, Saturday, 14 November

Clear. High 70°, low 34°.

Pressure30.21 inHg
Wind11.1 mph SW
Humidity35%
Visibility—
Dew point35°
Sun, 1576° / 55°0Clear
76 °Clear

Herculaneum, Sunday, 15 November

Clear. High 76°, low 55°.

Pressure30.15 inHg
Wind10.5 mph SW
Humidity48%
Visibility—
Dew point51°
Mon, 1674° / 56°0Overcast
74 °Overcast

Herculaneum, Monday, 16 November

Overcast. High 74°, low 56°.

Pressure30.12 inHg
Wind8.9 mph S
Humidity48%
Visibility—
Dew point50°
Tue, 1769° / 60°0.01Light rain
69 °Light rain

Herculaneum, Tuesday, 17 November

Light rain. High 69°, low 60°.

Pressure30.03 inHg
Wind14.6 mph S
Humidity65%
Visibility—
Dew point55°

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.