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As of 20:13 CDT

Weather in Gretna, MO

61°Current weather

Gretna, Monday, 19 October, 20:13

Clear. Feels like 60°. High 72°, low 43°.

Pressure30.27 inHg
Wind1 mph SE
Humidity65%
Visibility6.2 mi
Dew point48°
Tue, 2072° / 45°0Overcast
72 °Overcast

Gretna, Tuesday, 20 October

Overcast. High 72°, low 45°.

Pressure30.33 inHg
Wind3.7 mph SE
Humidity49%
Visibility6.2 mi
Dew point45°
Wed, 2177° / 46°0Clear
77 °Clear

Gretna, Wednesday, 21 October

Clear. High 77°, low 46°.

Pressure30.27 inHg
Wind2 mph SE
Humidity40%
Visibility6.2 mi
Dew point44°
Thu, 2274° / 51°0Clear
74 °Clear

Gretna, Thursday, 22 October

Clear. High 74°, low 51°.

Pressure30.27 inHg
Wind2.7 mph SE
Humidity43%
Visibility6.2 mi
Dew point47°
Fri, 2373° / 51°0Partly cloudy
73 °Partly cloudy

Gretna, Friday, 23 October

Partly cloudy. High 73°, low 51°.

Pressure30.24 inHg
Wind6.1 mph SE
Humidity54%
Visibility6.2 mi
Dew point50°
Sat, 2473° / 52°0Overcast
73 °Overcast

Gretna, Saturday, 24 October

Overcast. High 73°, low 52°.

Pressure30.30 inHg
Wind7.5 mph SE
Humidity44%
Visibility—
Dew point46°
Sun, 2580° / 55°0Overcast
80 °Overcast

Gretna, Sunday, 25 October

Overcast. High 80°, low 55°.

Pressure30.30 inHg
Wind5.3 mph SE
Humidity31%
Visibility—
Dew point42°
Mon, 2677° / 56°0Overcast
77 °Overcast

Gretna, Monday, 26 October

Overcast. High 77°, low 56°.

Pressure30.24 inHg
Wind4.4 mph SE
Humidity28%
Visibility—
Dew point39°
Tue, 2763° / 55°0.01Light rain
63 °Light rain

Gretna, Tuesday, 27 October

Light rain. High 63°, low 55°.

Pressure30.24 inHg
Wind9.1 mph N
Humidity76%
Visibility—
Dew point52°
Wed, 2855° / 37°0Clear
55 °Clear

Gretna, Wednesday, 28 October

Clear. High 55°, low 37°.

Pressure30.45 inHg
Wind9.2 mph N
Humidity20%
Visibility—
Dew point12°
Thu, 2956° / 29°0Clear
56 °Clear

Gretna, Thursday, 29 October

Clear. High 56°, low 29°.

Pressure30.47 inHg
Wind4.2 mph NE
Humidity22%
Visibility—
Dew point11°
Fri, 3066° / 32°0Clear
66 °Clear

Gretna, Friday, 30 October

Clear. High 66°, low 32°.

Pressure30.30 inHg
Wind5.9 mph SW
Humidity16%
Visibility—
Dew point11°
Sat, 3170° / 40°0Clear
70 °Clear

Gretna, Saturday, 31 October

Clear. High 70°, low 40°.

Pressure30.18 inHg
Wind7.2 mph SW
Humidity15%
Visibility—
Dew point16°
Sun, 0170° / 50°0Overcast
70 °Overcast

Gretna, Sunday, 1 November

Overcast. High 70°, low 50°.

Pressure30.12 inHg
Wind3.8 mph E
Humidity23%
Visibility—
Dew point26°
Mon, 0273° / 48°0Partly cloudy
73 °Partly cloudy

Gretna, Monday, 2 November

Partly cloudy. High 73°, low 48°.

Pressure30.09 inHg
Wind7.4 mph N
Humidity31%
Visibility—
Dew point37°
Tue, 0370° / 44°0Mostly clear
70 °Mostly clear

Gretna, Tuesday, 3 November

Mostly clear. High 70°, low 44°.

Pressure30.03 inHg
Wind6 mph SE
Humidity45%
Visibility—
Dew point41°

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.