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As of 13:41 CST

Weather in Gretna, MO

66°Current weather

Gretna, Sunday, 8 November, 13:41

Clear. Feels like 64°. High 66°, low 36°.

Pressure30.15 inHg
Wind4 mph S
Humidity48%
Visibility6.2 mi
Dew point45°
Mon, 0969° / 42°0Clear
69 °Clear

Gretna, Monday, 9 November

Clear. High 69°, low 42°.

Pressure30.21 inHg
Wind1.6 mph SW
Humidity50%
Visibility6.2 mi
Dew point46°
Tue, 1070° / 46°0Clear
70 °Clear

Gretna, Tuesday, 10 November

Clear. High 70°, low 46°.

Pressure30.12 inHg
Wind5.3 mph SW
Humidity53%
Visibility6.2 mi
Dew point50°
Wed, 1166° / 54°0Partly cloudy
66 °Partly cloudy

Gretna, Wednesday, 11 November

Partly cloudy. High 66°, low 54°.

Pressure29.97 inHg
Wind10.6 mph NW
Humidity59%
Visibility6.2 mi
Dew point50°
Thu, 1257° / 43°0Mostly clear
57 °Mostly clear

Gretna, Thursday, 12 November

Mostly clear. High 57°, low 43°.

Pressure30.06 inHg
Wind10 mph NW
Humidity51%
Visibility6.2 mi
Dew point38°
Fri, 1351° / 35°0Clear
51 °Clear

Gretna, Friday, 13 November

Clear. High 51°, low 35°.

Pressure30.12 inHg
Wind5.3 mph NW
Humidity49%
Visibility—
Dew point29°
Sat, 1457° / 30°0Clear
57 °Clear

Gretna, Saturday, 14 November

Clear. High 57°, low 30°.

Pressure30.12 inHg
Wind4 mph SW
Humidity31%
Visibility—
Dew point20°
Sun, 1570° / 41°0Clear
70 °Clear

Gretna, Sunday, 15 November

Clear. High 70°, low 41°.

Pressure30.03 inHg
Wind7.2 mph SW
Humidity45%
Visibility—
Dew point42°
Mon, 1673° / 50°0.01Light rain
73 °Light rain

Gretna, Monday, 16 November

Light rain. High 73°, low 50°.

Pressure30.00 inHg
Wind8.3 mph SW
Humidity57%
Visibility—
Dew point53°
Tue, 1773° / 57°0.15Light rain
73 °Light rain

Gretna, Tuesday, 17 November

Light rain. High 73°, low 57°.

Pressure29.91 inHg
Wind9.4 mph S
Humidity63%
Visibility—
Dew point58°
Wed, 1874° / 59°0.68Rain
74 °Rain

Gretna, Wednesday, 18 November

Rain. High 74°, low 59°.

Pressure29.83 inHg
Wind9.9 mph SW
Humidity63%
Visibility—
Dew point59°
Thu, 1972° / 58°0.76Rain
72 °Rain

Gretna, Thursday, 19 November

Rain. High 72°, low 58°.

Pressure29.88 inHg
Wind6.4 mph SW
Humidity74%
Visibility—
Dew point61°
Fri, 2067° / 61°0.62Light rain
67 °Light rain

Gretna, Friday, 20 November

Light rain. High 67°, low 61°.

Pressure30.00 inHg
Wind7.9 mph S
Humidity84%
Visibility—
Dew point62°
Sat, 2168° / 59°1.1Heavy rain
68 °Heavy rain

Gretna, Saturday, 21 November

Heavy rain. High 68°, low 59°.

Pressure29.83 inHg
Wind6.3 mph SE
Humidity81%
Visibility—
Dew point59°
Sun, 2260° / 51°0.17Rain
60 °Rain

Gretna, Sunday, 22 November

Rain. High 60°, low 51°.

Pressure29.71 inHg
Wind10.2 mph NW
Humidity87%
Visibility—
Dew point49°
Mon, 2363° / 44°0.01Light rain
63 °Light rain

Gretna, Monday, 23 November

Light rain. High 63°, low 44°.

Pressure29.97 inHg
Wind9.1 mph NW
Humidity49%
Visibility—
Dew point39°

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 Gretna, 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 Gretna, 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.