Weather in Decatur, TN
Decatur, Thursday, 29 October, 16:13
Clear. Feels like 75°. High 76°, low 48°.
Monthly outlook for Decatur, TN: average high 63.4°, average low 47.4°. That is 0.2° above the climate normal for October. Precipitation is expected on 5 days (about 4.9 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (77.1°), the coolest 12 November (38.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 68.2° | 64.4° | +2.1° |
| 8 November – 17 November | 55.5° | 59.8° | -2.4° |
| 18 November – 27 November | at normal | 57.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Spring City (12 mi).
0
Decatur, Friday, 30 October
Partly cloudy. High 77°, low 47°.
0
Decatur, Saturday, 31 October
Overcast. High 70°, low 51°.
0.52
Decatur, Sunday, 1 November
Rain. High 63°, low 53°.
0Decatur, Monday, 2 November
Overcast. High 68°, low 53°.
0Decatur, Tuesday, 3 November
Clear. High 71°, low 51°.
0.86Decatur, Wednesday, 4 November
Heavy rain. High 72°, low 57°.
2.99Decatur, Thursday, 5 November
Heavy rain. High 67°, low 56°.
0.02Decatur, Friday, 6 November
Light rain. High 61°, low 50°.
0Decatur, Saturday, 7 November
Overcast. High 56°, low 49°.
0Decatur, Sunday, 8 November
Clear. High 57°, low 39°.
0.21Decatur, Monday, 9 November
Rain. High 53°, low 41°.
0.33Decatur, Tuesday, 10 November
Rain. High 48°, low 43°.
0Decatur, Wednesday, 11 November
Overcast. High 54°, low 41°.
0Decatur, Thursday, 12 November
Partly cloudy. High 59°, low 38°.
0Decatur, Friday, 13 November
Clear. High 62°, low 40°.
0.09Decatur, Saturday, 14 November
Climate normal for this date — 60-year average.
0.2Decatur, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Decatur, Monday, 16 November
Climate normal for this date — 60-year average.
0.12
Decatur, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.12Decatur, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Decatur, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Decatur, Friday, 20 November
Climate normal for this date — 60-year average.
0.15Decatur, Saturday, 21 November
Climate normal for this date — 60-year average.
0.13Decatur, Sunday, 22 November
Climate normal for this date — 60-year average.
0.12Decatur, Monday, 23 November
Climate normal for this date — 60-year average.
0.16Decatur, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12Decatur, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.14Decatur, Thursday, 26 November
Climate normal for this date — 60-year average.
0.17Decatur, Friday, 27 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 Decatur, TN 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 Decatur, TN 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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