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As of 23:20 CDT

Weather in Gretna, MO

54°Current weather

Gretna, Wednesday, 21 October, 23:20

Clear. Feels like 53°. High 76°, low 50°.

Pressure30.24 inHg
Wind0 mph N
Humidity74%
Visibility6.2 mi
Dew point46°
Thu, 2277° / 51°0Clear
77 °Clear

Gretna, Thursday, 22 October

Clear. High 77°, low 51°.

Pressure30.24 inHg
Wind2.7 mph SE
Humidity40%
Visibility6.2 mi
Dew point47°
Fri, 2375° / 51°0Partly cloudy
75 °Partly cloudy

Gretna, Friday, 23 October

Partly cloudy. High 75°, low 51°.

Pressure30.24 inHg
Wind6.2 mph SE
Humidity45%
Visibility6.2 mi
Dew point49°
Sat, 2476° / 51°0Overcast
76 °Overcast

Gretna, Saturday, 24 October

Overcast. High 76°, low 51°.

Pressure30.30 inHg
Wind4.5 mph SE
Humidity43%
Visibility6.2 mi
Dew point47°
Sun, 2575° / 52°0Overcast
75 °Overcast

Gretna, Sunday, 25 October

Overcast. High 75°, low 52°.

Pressure30.36 inHg
Wind3.6 mph SE
Humidity44%
Visibility6.2 mi
Dew point47°
Mon, 2674° / 52°0Overcast
74 °Overcast

Gretna, Monday, 26 October

Overcast. High 74°, low 52°.

Pressure30.30 inHg
Wind5.9 mph SE
Humidity35%
Visibility—
Dew point41°
Tue, 2772° / 53°0Overcast
72 °Overcast

Gretna, Tuesday, 27 October

Overcast. High 72°, low 53°.

Pressure30.21 inHg
Wind5.9 mph W
Humidity44%
Visibility—
Dew point45°
Wed, 2858° / 43°0Light rain
58 °Light rain

Gretna, Wednesday, 28 October

Light rain. High 58°, low 43°.

Pressure30.36 inHg
Wind10.1 mph N
Humidity49%
Visibility—
Dew point37°
Thu, 2961° / 35°0Clear
61 °Clear

Gretna, Thursday, 29 October

Clear. High 61°, low 35°.

Pressure30.36 inHg
Wind5.3 mph N
Humidity35%
Visibility—
Dew point27°
Fri, 3068° / 40°0Overcast
68 °Overcast

Gretna, Friday, 30 October

Overcast. High 68°, low 40°.

Pressure30.15 inHg
Wind7.6 mph S
Humidity32%
Visibility—
Dew point31°
Sat, 3164° / 47°0.1Light rain
64 °Light rain

Gretna, Saturday, 31 October

Light rain. High 64°, low 47°.

Pressure30.00 inHg
Wind7.9 mph S
Humidity40%
Visibility—
Dew point37°
Sun, 0166° / 54°0.22Light rain
66 °Light rain

Gretna, Sunday, 1 November

Light rain. High 66°, low 54°.

Pressure29.97 inHg
Wind7.2 mph S
Humidity88%
Visibility—
Dew point57°
Mon, 0264° / 47°0.14Rain
64 °Rain

Gretna, Monday, 2 November

Rain. High 64°, low 47°.

Pressure30.33 inHg
Wind8.6 mph N
Humidity41%
Visibility—
Dew point38°
Tue, 0365° / 42°0Overcast
65 °Overcast

Gretna, Tuesday, 3 November

Overcast. High 65°, low 42°.

Pressure30.36 inHg
Wind5.8 mph SW
Humidity30%
Visibility—
Dew point28°
Wed, 0458° / 51°0.07Light rain
58 °Light rain

Gretna, Wednesday, 4 November

Light rain. High 58°, low 51°.

Pressure29.91 inHg
Wind9.3 mph S
Humidity77%
Visibility—
Dew point50°
Thu, 0567° / 47°0.09Light rain
67 °Light rain

Gretna, Thursday, 5 November

Light rain. High 67°, low 47°.

Pressure29.91 inHg
Wind11.4 mph NW
Humidity34%
Visibility—
Dew point37°

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.