Weather in Greencastle, MO
Greencastle, Monday, 12 October, 14:10
Mostly clear. Feels like 92°. High 88°, low 68°.
Monthly outlook for Greencastle, MO: average high 68°, average low 54°. That is 3.7° above the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 13 October (88.4°), the coolest 26 October (39.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 68.8° | 62.6° | +3.5° |
| 22 October – 31 October | 66.7° | 58.5° | +4.5° |
| 1 November – 10 November | at normal | 53.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lemons (14 mi).
0.01
Greencastle, Tuesday, 13 October
Light rain. High 88°, low 63°.
0.64Greencastle, Wednesday, 14 October
Heavy rain. High 69°, low 62°.
0.47Greencastle, Thursday, 15 October
Rain. High 66°, low 59°.
0
Greencastle, Friday, 16 October
Clear. High 59°, low 48°.
0Greencastle, Saturday, 17 October
Clear. High 59°, low 40°.
0Greencastle, Sunday, 18 October
Clear. High 61°, low 42°.
0.5Greencastle, Monday, 19 October
Rain. High 56°, low 49°.
0
Greencastle, Tuesday, 20 October
Overcast. High 68°, low 53°.
0.11Greencastle, Wednesday, 21 October
Light rain. High 75°, low 58°.
0Greencastle, Thursday, 22 October
Overcast. High 75°, low 63°.
0.02Greencastle, Friday, 23 October
Light rain. High 76°, low 66°.
0.31Greencastle, Saturday, 24 October
Rain. High 71°, low 61°.
0Greencastle, Sunday, 25 October
Overcast. High 57°, low 47°.
0Greencastle, Monday, 26 October
Clear. High 59°, low 39°.
0Greencastle, Tuesday, 27 October
Clear. High 63°, low 47°.
0.06
Greencastle, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.08Greencastle, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11
Greencastle, Friday, 30 October
Climate normal for this date — 60-year average.
0.16Greencastle, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Greencastle, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Greencastle, Monday, 2 November
Climate normal for this date — 60-year average.
0.1Greencastle, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Greencastle, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Greencastle, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Greencastle, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Greencastle, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Greencastle, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Greencastle, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Greencastle, Tuesday, 10 November
Climate normal for this date — 60-year average.
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 Greencastle, 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 Greencastle, 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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