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As of 13:22 CDT

Weather in Gretna, MO

54°Current weather

Gretna, Friday, 16 October, 13:22

Overcast. Feels like 53°. High 60°, low 50°.

Pressure30.39 inHg
Wind16.1 mph NW
Humidity62%
Visibility6.2 mi
Dew point41°
Sat, 1760° / 43°0Clear
60 °Clear

Gretna, Saturday, 17 October

Clear. High 60°, low 43°.

Pressure30.56 inHg
Wind5.1 mph E
Humidity48%
Visibility6.2 mi
Dew point36°
Sun, 1863° / 44°0Clear
63 °Clear

Gretna, Sunday, 18 October

Clear. High 63°, low 44°.

Pressure30.47 inHg
Wind5.3 mph SE
Humidity46%
Visibility6.2 mi
Dew point38°
Mon, 1968° / 44°0Clear
68 °Clear

Gretna, Monday, 19 October

Clear. High 68°, low 44°.

Pressure30.33 inHg
Wind3.8 mph SE
Humidity45%
Visibility6.2 mi
Dew point42°
Tue, 2070° / 46°0Mostly clear
70 °Mostly clear

Gretna, Tuesday, 20 October

Mostly clear. High 70°, low 46°.

Pressure30.30 inHg
Wind4.1 mph SE
Humidity45%
Visibility6.2 mi
Dew point42°
Wed, 2173° / 47°0Clear
73 °Clear

Gretna, Wednesday, 21 October

Clear. High 73°, low 47°.

Pressure30.24 inHg
Wind3.2 mph E
Humidity39%
Visibility—
Dew point42°
Thu, 2283° / 54°0Mostly clear
83 °Mostly clear

Gretna, Thursday, 22 October

Mostly clear. High 83°, low 54°.

Pressure30.15 inHg
Wind2.9 mph SW
Humidity27%
Visibility—
Dew point41°
Fri, 2383° / 58°0Clear
83 °Clear

Gretna, Friday, 23 October

Clear. High 83°, low 58°.

Pressure30.12 inHg
Wind3.7 mph SE
Humidity35%
Visibility—
Dew point49°
Sat, 2482° / 60°0Overcast
82 °Overcast

Gretna, Saturday, 24 October

Overcast. High 82°, low 60°.

Pressure30.15 inHg
Wind6.2 mph SE
Humidity31%
Visibility—
Dew point45°
Sun, 2579° / 59°0Overcast
79 °Overcast

Gretna, Sunday, 25 October

Overcast. High 79°, low 59°.

Pressure30.09 inHg
Wind6.8 mph SE
Humidity37%
Visibility—
Dew point46°
Mon, 2678° / 55°0Overcast
78 °Overcast

Gretna, Monday, 26 October

Overcast. High 78°, low 55°.

Pressure30.12 inHg
Wind4.6 mph N
Humidity44%
Visibility—
Dew point44°
Tue, 2780° / 55°0Overcast
80 °Overcast

Gretna, Tuesday, 27 October

Overcast. High 80°, low 55°.

Pressure30.15 inHg
Wind7.8 mph SE
Humidity42%
Visibility—
Dew point49°
Wed, 2870° / 59°0.06Light rain
70 °Light rain

Gretna, Wednesday, 28 October

Light rain. High 70°, low 59°.

Pressure30.03 inHg
Wind7.4 mph S
Humidity89%
Visibility—
Dew point57°
Thu, 2984° / 59°0.02Light rain
84 °Light rain

Gretna, Thursday, 29 October

Light rain. High 84°, low 59°.

Pressure29.94 inHg
Wind11.7 mph SW
Humidity50%
Visibility—
Dew point58°
Fri, 3076° / 65°0.4Rain
76 °Rain

Gretna, Friday, 30 October

Rain. High 76°, low 65°.

Pressure30.00 inHg
Wind3.6 mph SE
Humidity62%
Visibility—
Dew point60°
Sat, 3175° / 64°1.94Heavy rain
75 °Heavy rain

Gretna, Saturday, 31 October

Heavy rain. High 75°, low 64°.

Pressure29.85 inHg
Wind8.6 mph SE
Humidity85%
Visibility—
Dew point65°

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.