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As of 13:35 CDT

Weather in Gretna, MO

76°Current weather

Gretna, Thursday, 22 October, 13:35

Clear. Feels like 75°. High 77°, low 47°.

Pressure30.21 inHg
Wind3.4 mph SE
Humidity37%
Visibility6.2 mi
Dew point48°
Fri, 2375° / 48°0Overcast
75 °Overcast

Gretna, Friday, 23 October

Overcast. High 75°, low 48°.

Pressure30.24 inHg
Wind5.8 mph SE
Humidity47%
Visibility6.2 mi
Dew point49°
Sat, 2475° / 49°0Overcast
75 °Overcast

Gretna, Saturday, 24 October

Overcast. High 75°, low 49°.

Pressure30.30 inHg
Wind4 mph SE
Humidity46%
Visibility6.2 mi
Dew point48°
Sun, 2575° / 51°0Partly cloudy
75 °Partly cloudy

Gretna, Sunday, 25 October

Partly cloudy. High 75°, low 51°.

Pressure30.39 inHg
Wind3.5 mph SE
Humidity46%
Visibility6.2 mi
Dew point50°
Mon, 2672° / 53°0Overcast
72 °Overcast

Gretna, Monday, 26 October

Overcast. High 72°, low 53°.

Pressure30.33 inHg
Wind5 mph SE
Humidity48%
Visibility6.2 mi
Dew point47°
Tue, 2771° / 52°0Overcast
71 °Overcast

Gretna, Tuesday, 27 October

Overcast. High 71°, low 52°.

Pressure30.24 inHg
Wind5.9 mph SE
Humidity41%
Visibility—
Dew point44°
Wed, 2877° / 49°0Clear
77 °Clear

Gretna, Wednesday, 28 October

Clear. High 77°, low 49°.

Pressure30.15 inHg
Wind6.4 mph SW
Humidity42%
Visibility—
Dew point46°
Thu, 2975° / 54°0.03Light rain
75 °Light rain

Gretna, Thursday, 29 October

Light rain. High 75°, low 54°.

Pressure30.15 inHg
Wind10.4 mph N
Humidity41%
Visibility—
Dew point48°
Fri, 3071° / 51°0.04Light rain
71 °Light rain

Gretna, Friday, 30 October

Light rain. High 71°, low 51°.

Pressure30.15 inHg
Wind7.3 mph SE
Humidity56%
Visibility—
Dew point46°
Sat, 3161° / 55°0.57Rain
61 °Rain

Gretna, Saturday, 31 October

Rain. High 61°, low 55°.

Pressure29.97 inHg
Wind7.3 mph SE
Humidity97%
Visibility—
Dew point55°
Sun, 0167° / 56°0.16Light rain
67 °Light rain

Gretna, Sunday, 1 November

Light rain. High 67°, low 56°.

Pressure30.03 inHg
Wind4.8 mph NE
Humidity89%
Visibility—
Dew point60°
Mon, 0268° / 61°0.46Rain
68 °Rain

Gretna, Monday, 2 November

Rain. High 68°, low 61°.

Pressure30.12 inHg
Wind5.5 mph SW
Humidity81%
Visibility—
Dew point61°
Tue, 0372° / 57°0.07Light rain
72 °Light rain

Gretna, Tuesday, 3 November

Light rain. High 72°, low 57°.

Pressure30.24 inHg
Wind5.3 mph W
Humidity52%
Visibility—
Dew point51°
Wed, 0472° / 53°0Overcast
72 °Overcast

Gretna, Wednesday, 4 November

Overcast. High 72°, low 53°.

Pressure30.18 inHg
Wind4 mph NW
Humidity42%
Visibility—
Dew point45°
Thu, 0573° / 49°0Clear
73 °Clear

Gretna, Thursday, 5 November

Clear. High 73°, low 49°.

Pressure30.09 inHg
Wind7.3 mph SE
Humidity48%
Visibility—
Dew point46°
Fri, 0671° / 54°0Overcast
71 °Overcast

Gretna, Friday, 6 November

Overcast. High 71°, low 54°.

Pressure30.00 inHg
Wind4.2 mph SW
Humidity56%
Visibility—
Dew point49°

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.