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As of 21:39 CDT

Weather in Mammoth Cave, KY

76°Current weather

Mammoth Cave, Saturday, 8 August, 21:39

Overcast. Feels like 78°. High 89°, low 73°.

Pressure30.06 inHg
Wind3.6 mph SW
Humidity89%
Visibility6.2 mi
Dew point73°
Sun, 0991° / 74°0.11Light rain
91 °Light rain

Mammoth Cave, Sunday, 9 August

Light rain. High 91°, low 74°.

Pressure30.06 inHg
Wind7.9 mph S
Humidity56%
Visibility6.2 mi
Dew point71°
Mon, 1093° / 72°0Clear
93 °Clear

Mammoth Cave, Monday, 10 August

Clear. High 93°, low 72°.

Pressure30.06 inHg
Wind10.8 mph SW
Humidity53%
Visibility6.2 mi
Dew point70°
Tue, 1195° / 73°0Mostly clear
95 °Mostly clear

Mammoth Cave, Tuesday, 11 August

Mostly clear. High 95°, low 73°.

Pressure30.00 inHg
Wind11.2 mph SW
Humidity52%
Visibility6.2 mi
Dew point71°
Wed, 1293° / 72°0.13Light rain
93 °Light rain

Mammoth Cave, Wednesday, 12 August

Light rain. High 93°, low 72°.

Pressure29.85 inHg
Wind10.6 mph SW
Humidity55%
Visibility6.2 mi
Dew point71°
Thu, 1386° / 67°0.06Light rain
86 °Light rain

Mammoth Cave, Thursday, 13 August

Light rain. High 86°, low 67°.

Pressure29.97 inHg
Wind4.8 mph NW
Humidity61%
Visibility—
Dew point67°
Fri, 1481° / 69°0.61Rain
81 °Rain

Mammoth Cave, Friday, 14 August

Rain. High 81°, low 69°.

Pressure30.00 inHg
Wind10.4 mph NE
Humidity95%
Visibility—
Dew point72°
Sat, 1575° / 66°0.07Light rain
75 °Light rain

Mammoth Cave, Saturday, 15 August

Light rain. High 75°, low 66°.

Pressure30.24 inHg
Wind8.8 mph E
Humidity84%
Visibility—
Dew point67°
Sun, 1691° / 65°0.16Light rain
91 °Light rain

Mammoth Cave, Sunday, 16 August

Light rain. High 91°, low 65°.

Pressure30.06 inHg
Wind8 mph SE
Humidity61%
Visibility—
Dew point70°
Mon, 1791° / 73°0.08Light rain
91 °Light rain

Mammoth Cave, Monday, 17 August

Light rain. High 91°, low 73°.

Pressure30.00 inHg
Wind6.7 mph W
Humidity62%
Visibility—
Dew point72°
Tue, 1889° / 71°1.19Heavy rain
89 °Heavy rain

Mammoth Cave, Tuesday, 18 August

Heavy rain. High 89°, low 71°.

Pressure29.97 inHg
Wind5.6 mph E
Humidity57%
Visibility—
Dew point69°
Wed, 1989° / 69°0.06Light rain
89 °Light rain

Mammoth Cave, Wednesday, 19 August

Light rain. High 89°, low 69°.

Pressure29.91 inHg
Wind4.2 mph NW
Humidity57%
Visibility—
Dew point69°
Thu, 2080° / 66°0Clear
80 °Clear

Mammoth Cave, Thursday, 20 August

Clear. High 80°, low 66°.

Pressure29.97 inHg
Wind9.8 mph N
Humidity48%
Visibility—
Dew point56°
Fri, 2180° / 60°0.01Light rain
80 °Light rain

Mammoth Cave, Friday, 21 August

Light rain. High 80°, low 60°.

Pressure30.03 inHg
Wind7.3 mph E
Humidity52%
Visibility—
Dew point57°
Sat, 2287° / 65°0.12Light rain
87 °Light rain

Mammoth Cave, Saturday, 22 August

Light rain. High 87°, low 65°.

Pressure29.91 inHg
Wind13.2 mph S
Humidity57%
Visibility—
Dew point67°
Sun, 2389° / 76°0Overcast
89 °Overcast

Mammoth Cave, Sunday, 23 August

Overcast. High 89°, low 76°.

Pressure29.97 inHg
Wind9 mph SW
Humidity55%
Visibility—
Dew point69°

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 Mammoth Cave, KY 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 Mammoth Cave, KY 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.