Weather in Gretna, MO
Gretna, Saturday, 31 October, 18:43
Rain. Feels like 63°. High 69°, low 61°.
0.38Gretna, Sunday, 1 November
Rain. High 69°, low 57°.
0.01Gretna, Monday, 2 November
Light rain. High 72°, low 55°.
0.13Gretna, Tuesday, 3 November
Rain. High 75°, low 61°.
0
Gretna, Wednesday, 4 November
Overcast. High 66°, low 53°.
0.21Gretna, Thursday, 5 November
Rain. High 71°, low 51°.
0.01Gretna, Friday, 6 November
Light rain. High 64°, low 49°.
0.21Gretna, Saturday, 7 November
Rain. High 67°, low 46°.
0Gretna, Sunday, 8 November
Light rain. High 63°, low 46°.
0
Gretna, Monday, 9 November
Clear. High 66°, low 45°.
0Gretna, Tuesday, 10 November
Overcast. High 69°, low 46°.
0Gretna, Wednesday, 11 November
Overcast. High 70°, low 52°.
0.34Gretna, Thursday, 12 November
Rain. High 62°, low 48°.
0
Gretna, Friday, 13 November
Partly cloudy. High 65°, low 46°.
0.02Gretna, Saturday, 14 November
Light rain. High 46°, low 38°.
0.01Gretna, Sunday, 15 November
Light rain. High 43°, low 35°.
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.
Sun and moon today
Weather history
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