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As of 18:04 CDT

Weather in Herculaneum, MO

65°Current weather

Herculaneum, Saturday, 31 October, 18:04

Overcast. Feels like 65°. High 68°, low 59°.

Pressure30.21 inHg
Wind5.3 mph E
Humidity69%
Visibility6.2 mi
Dew point55°
Sun, 0172° / 60°0.3Rain
72 °Rain

Herculaneum, Sunday, 1 November

Rain. High 72°, low 60°.

Pressure30.27 inHg
Wind10.7 mph SE
Humidity77%
Visibility6.2 mi
Dew point55°
Mon, 0270° / 59°0Light rain
70 °Light rain

Herculaneum, Monday, 2 November

Light rain. High 70°, low 59°.

Pressure30.03 inHg
Wind9.9 mph S
Humidity83%
Visibility6.2 mi
Dew point60°
Tue, 0373° / 66°0.69Heavy rain
73 °Heavy rain

Herculaneum, Tuesday, 3 November

Heavy rain. High 73°, low 66°.

Pressure29.85 inHg
Wind14.9 mph S
Humidity81%
Visibility6.2 mi
Dew point64°
Wed, 0466° / 58°0.5Heavy rain
66 °Heavy rain

Herculaneum, Wednesday, 4 November

Heavy rain. High 66°, low 58°.

Pressure29.77 inHg
Wind10.1 mph SW
Humidity59%
Visibility6.2 mi
Dew point49°
Thu, 0569° / 53°0.1Light rain
69 °Light rain

Herculaneum, Thursday, 5 November

Light rain. High 69°, low 53°.

Pressure29.77 inHg
Wind10 mph W
Humidity43%
Visibility—
Dew point42°
Fri, 0662° / 52°0.06Light rain
62 °Light rain

Herculaneum, Friday, 6 November

Light rain. High 62°, low 52°.

Pressure29.88 inHg
Wind7.7 mph NW
Humidity58%
Visibility—
Dew point46°
Sat, 0761° / 51°0Overcast
61 °Overcast

Herculaneum, Saturday, 7 November

Overcast. High 61°, low 51°.

Pressure29.80 inHg
Wind5.4 mph SE
Humidity59%
Visibility—
Dew point44°
Sun, 0863° / 51°0.03Light rain
63 °Light rain

Herculaneum, Sunday, 8 November

Light rain. High 63°, low 51°.

Pressure29.83 inHg
Wind12.8 mph N
Humidity42%
Visibility—
Dew point37°
Mon, 0962° / 45°0Partly cloudy
62 °Partly cloudy

Herculaneum, Monday, 9 November

Partly cloudy. High 62°, low 45°.

Pressure29.97 inHg
Wind10.4 mph NW
Humidity53%
Visibility—
Dew point40°
Tue, 1064° / 42°0Overcast
64 °Overcast

Herculaneum, Tuesday, 10 November

Overcast. High 64°, low 42°.

Pressure30.06 inHg
Wind5.4 mph W
Humidity33%
Visibility—
Dew point30°
Wed, 1165° / 48°0Mostly clear
65 °Mostly clear

Herculaneum, Wednesday, 11 November

Mostly clear. High 65°, low 48°.

Pressure29.83 inHg
Wind7.3 mph NW
Humidity40%
Visibility—
Dew point38°
Thu, 1257° / 40°0.09Light rain
57 °Light rain

Herculaneum, Thursday, 12 November

Light rain. High 57°, low 40°.

Pressure29.74 inHg
Wind11.8 mph E
Humidity35%
Visibility—
Dew point27°
Fri, 1369° / 45°0.41Rain
69 °Rain

Herculaneum, Friday, 13 November

Rain. High 69°, low 45°.

Pressure29.59 inHg
Wind9.6 mph N
Humidity56%
Visibility—
Dew point49°
Sat, 1450° / 41°0.1Light rain
50 °Light rain

Herculaneum, Saturday, 14 November

Light rain. High 50°, low 41°.

Pressure29.85 inHg
Wind11.6 mph N
Humidity95%
Visibility—
Dew point40°
Sun, 1546° / 39°0Overcast
46 °Overcast

Herculaneum, Sunday, 15 November

Overcast. High 46°, low 39°.

Pressure30.06 inHg
Wind8.5 mph NW
Humidity58%
Visibility—
Dew point31°

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.