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Gretna MO Weather - Clear - 82°F
Clear
82°F
Updated 10:00 am
Feels Like 78°F
Humidity 45%
Wind WSW 6 mph
Barometer  30.09 in
Dew Point 59°F
Gretna MO Weather - Clear - 28°C
Clear
28°C
Updated 10:00 am
Feels Like 26°C
Humidity 45%
Wind WSW 10 km/h
Barometer  101.9 kPa
Dew Point 15°C
Gretna, MO Weather and Current Conditionsgretna mo weather forecast

Gretna, MO Weather Forecast

Gretna Missouri WeatherGretna, Missouri Weather Weather Forecast
14 day API weather forecast for Gretna, Missouri. Note: The 7-day weather forecast for Gretna, MO is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Gretna, MO Weather Forecast Dated: 1000 AM Sat Sep 19 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 19, 2026

Mid-Morning
Gretna Weather - 2026-09-19 - Morning - Sunny
78°F 26°C
Sunny
Mid-Afternoon
Gretna Weather - 2026-09-19 - Afternoon - Partly Cloudy
95°F 35°C
Partly Cloudy
Early-Evening
Gretna Weather - 2026-09-19 - Evening - Overcast
85°F 30°C
Overcast
Very hot with temperatures reaching 95°F 35°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling.

Sunday, September 20, 2026

Mid-Morning
Gretna Weather - 2026-09-20 - Morning - Sunny
78°F 26°C
Sunny
Mid-Afternoon
Gretna Weather - 2026-09-20 - Afternoon - Overcast
96°F 36°C
Overcast
Early-Evening
Gretna Weather - 2026-09-20 - Evening - Overcast
81°F 27°C
Overcast
Hot and sweltering around 96°F 36°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the SW to the NNW at 9 mph 15 km/h. Gusts up to 22 mph 34 km/h.

Monday, September 21, 2026

Mid-Morning
Gretna Weather - 2026-09-21 - Morning - Partly Cloudy
68°F 20°C
Partly Cloudy
Mid-Afternoon
Gretna Weather - 2026-09-21 - Afternoon - Overcast
87°F 31°C
Overcast
Early-Evening
Gretna Weather - 2026-09-21 - Evening - Cloudy
75°F 24°C
Cloudy
Quite warm around 87°F 31°C, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds blowing from the W at 4 mph 6 km/h.

Tuesday, September 22, 2026

Mid-Morning
Gretna Weather - 2026-09-22 - Morning - Scattered Showers
63°F 17°C
Scattered Showers
Mid-Afternoon
Gretna Weather - 2026-09-22 - Afternoon - Cloudy
82°F 28°C
Cloudy
Early-Evening
Gretna Weather - 2026-09-22 - Evening - Sunny
74°F 23°C
Sunny
Warm temperatures up to 82°F 28°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Gretna Weather - 2026-09-23 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Gretna Weather - 2026-09-23 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Gretna Weather - 2026-09-23 - Evening - Sunny
72°F 22°C
Sunny
Mild with a high of 78°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

Thursday, September 24, 2026

Mid-Morning
Gretna Weather - 2026-09-24 - Morning - Partly Cloudy
63°F 17°C
Partly Cloudy
Mid-Afternoon
Gretna Weather - 2026-09-24 - Afternoon - Overcast
70°F 21°C
Overcast
Early-Evening
Gretna Weather - 2026-09-24 - Evening - Overcast
67°F 19°C
Overcast
Pleasant near 70°F 21°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure.

Friday, September 25, 2026

Mid-Morning
Gretna Weather - 2026-09-25 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Gretna Weather - 2026-09-25 - Afternoon - Overcast
70°F 21°C
Overcast
Early-Evening
Gretna Weather - 2026-09-25 - Evening - Overcast
67°F 19°C
Overcast
Comfortable with temperatures reaching 70°F 21°C, overcast throughout the day, with lower humidity and steady pressure.

Saturday, September 26, 2026

Mid-Morning
Gretna Weather - 2026-09-26 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Gretna Weather - 2026-09-26 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Gretna Weather - 2026-09-26 - Evening - Sunny
71°F 21°C
Sunny
Enjoyable around 78°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.

Sunday, September 27, 2026

Mid-Morning
Gretna Weather - 2026-09-27 - Morning - Cloudy
65°F 18°C
Cloudy
Mid-Afternoon
Gretna Weather - 2026-09-27 - Afternoon - Overcast
81°F 27°C
Overcast
Early-Evening
Gretna Weather - 2026-09-27 - Evening - Overcast
73°F 23°C
Overcast
Warm temperatures up to 81°F 27°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.

Monday, September 28, 2026

Mid-Morning
Gretna Weather - 2026-09-28 - Morning - Cloudy
69°F 21°C
Cloudy
Mid-Afternoon
Gretna Weather - 2026-09-28 - Afternoon - Cloudy
82°F 28°C
Cloudy
Early-Evening
Gretna Weather - 2026-09-28 - Evening - Overcast
76°F 24°C
Overcast
Very warm with a high of 82°F 28°C, overcast throughout the day, with steady humidity and steady pressure.

Tuesday, September 29, 2026

Mid-Morning
Gretna Weather - 2026-09-29 - Morning - Scattered Showers
65°F 18°C
Scattered Showers
Mid-Afternoon
Gretna Weather - 2026-09-29 - Afternoon - Scattered Showers
64°F 18°C
Scattered Showers
Early-Evening
Gretna Weather - 2026-09-29 - Evening - Light Showers
62°F 17°C
Light Showers
Comfortable at 64°F 18°C, scattered downpours possible, with increasing humidity and steady pressure.

Wednesday, September 30, 2026

Mid-Morning
Gretna Weather - 2026-09-30 - Morning - Fog
63°F 17°C
Fog
Mid-Afternoon
Gretna Weather - 2026-09-30 - Afternoon - Scattered Showers
72°F 22°C
Scattered Showers
Early-Evening
Gretna Weather - 2026-09-30 - Evening - Scattered Showers
69°F 21°C
Scattered Showers
Comfortable with temperatures reaching 72°F 22°C, locally heavy downpours at times, with lower humidity and steady pressure.

Thursday, October 1, 2026

Mid-Morning
Gretna Weather - 2026-10-01 - Morning - Light Showers
57°F 14°C
Light Showers
Mid-Afternoon
Gretna Weather - 2026-10-01 - Afternoon - Light Fog
61°F 16°C
Light Fog
Early-Evening
Gretna Weather - 2026-10-01 - Evening - Overcast
61°F 16°C
Overcast
Refreshing around 61°F 16°C, early showers breaking for a drier afternoon, with steady humidity and steady pressure.

Friday, October 2, 2026

Mid-Morning
Gretna Weather - 2026-10-02 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
Gretna Weather - 2026-10-02 - Afternoon - Sunny
74°F 24°C
Sunny
Early-Evening
Gretna Weather - 2026-10-02 - Evening - Overcast
66°F 19°C
Overcast
Mild temperatures up to 74°F 24°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds moving from the ENE to the NNE at 6 mph 10 km/h.

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Weather by the Numbers

Sat, 19th
Gretna MO Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 95°F 35°C
Lo: 73°F 23°C
Sunrise 06:58 AM
Sunset 07:14 PM
Wind SW 8 mph13 km/h
Dew Point 52°F11°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 27%
Sun, 20th
Gretna MO Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 96°F 36°C
Lo: 68°F 20°C
Sunrise 06:59 AM
Sunset 07:13 PM
Wind WSW 6 mph9 km/h
Dew Point 57°F14°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 9% *
Humidity 31%
Mon, 21st
Gretna MO Weather - Monday, Sep 21, 2026 - Sunny
Hi: 87°F 31°C
Lo: 67°F 19°C
Sunrise 07:00 AM
Sunset 07:11 PM
Wind WNW 2 mph3 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 49%
Tue, 22nd
Gretna MO Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 82°F 28°C
Lo: 60°F 16°C
Sunrise 07:01 AM
Sunset 07:10 PM
Wind N 6 mph10 km/h
Dew Point 54°F12°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 7% *
Humidity 45%
Wed, 23rd
Gretna MO Weather - Wednesday, Sep 23, 2026 - Cloudy
Hi: 79°F 26°C
Lo: 55°F 13°C
Sunrise 07:02 AM
Sunset 07:08 PM
Wind ENE 4 mph7 km/h
Dew Point 52°F11°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 8% *
Humidity 48%
Thu, 24th
Gretna MO Weather - Thursday, Sep 24, 2026 - Cloudy
Hi: 76°F 24°C
Lo: 57°F 14°C
Sunrise 07:03 AM
Sunset 07:07 PM
Wind NE 6 mph9 km/h
Dew Point 49°F9°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 9% *
Humidity 45%
Fri, 25th
Gretna MO Weather - Friday, Sep 25, 2026 - Overcast
Hi: 70°F 21°C
Lo: 59°F 15°C
Sunrise 07:03 AM
Sunset 07:05 PM
Wind E 3 mph5 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 11% *
Humidity 46%
Sat, 26th
Gretna MO Weather - Saturday, Sep 26, 2026 - Sunny
Hi: 79°F 26°C
Lo: 54°F 12°C
Sunrise 07:04 AM
Sunset 07:04 PM
Wind ESE 5 mph8 km/h
Dew Point 46°F8°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 41%
Sun, 27th
Gretna MO Weather - Sunday, Sep 27, 2026 - Overcast
Hi: 82°F 28°C
Lo: 58°F 14°C
Sunrise 07:05 AM
Sunset 07:02 PM
Wind SSE 5 mph8 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 10% *
Humidity 41%
Mon, 28th
Gretna MO Weather - Monday, Sep 28, 2026 - Cloudy
Hi: 83°F 28°C
Lo: 63°F 17°C
Sunrise 07:06 AM
Sunset 07:01 PM
Wind S 4 mph6 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 40%
Tue, 29th
Gretna MO Weather - Tuesday, Sep 29, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 61°F 16°C
Sunrise 07:07 AM
Sunset 06:59 PM
Wind WSW 4 mph6 km/h
Dew Point 60°F16°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 25% *
Humidity 82%
Wed, 30th
Gretna MO Weather - Wednesday, Sep 30, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 60°F 16°C
Sunrise 07:07 AM
Sunset 06:58 PM
Wind ESE 4 mph6 km/h
Dew Point 59°F15°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 13% *
Humidity 71%
Thu, 1st
Gretna MO Weather - Thursday, Oct 1, 2026 - Fog
Hi: 63°F 17°C
Lo: 57°F 14°C
Sunrise 07:08 AM
Sunset 06:56 PM
Wind E 5 mph8 km/h
Dew Point 57°F14°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 39% *
Humidity 96%
Fri, 2nd
Gretna MO Weather - Friday, Oct 2, 2026 - Sunny
Hi: 74°F 24°C
Lo: 56°F 14°C
Sunrise 07:09 AM
Sunset 06:55 PM
Wind NE 6 mph10 km/h
Dew Point 46°F8°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 42%
* POP = Probability of Precipitation. Data for 12:00 PM.