Weather in Erwin, TN
Erwin, Friday, 9 October, 17:04
Overcast. Feels like 72°. High 72°, low 53°.
Monthly outlook for Erwin, TN: average high 68.4°, average low 48.3°. That is 1.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 15 October (82.1°), the coolest 18 October (32.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 70° | 67.4° | +1.4° |
| 19 October – 28 October | 65.6° | 63.7° | +1.1° |
| 29 October – 7 November | at normal | 61° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Johnson City (14 mi).
1.13
Erwin, Saturday, 10 October
Heavy rain. High 63°, low 52°.
0.37Erwin, Sunday, 11 October
Rain. High 66°, low 57°.
0.02Erwin, Monday, 12 October
Light rain. High 73°, low 58°.
0
Erwin, Tuesday, 13 October
Clear. High 76°, low 60°.
0.11Erwin, Wednesday, 14 October
Light rain. High 78°, low 62°.
0.06Erwin, Thursday, 15 October
Light rain. High 82°, low 60°.
0.06Erwin, Friday, 16 October
Light rain. High 80°, low 59°.
0.06Erwin, Saturday, 17 October
Light rain. High 58°, low 37°.
0
Erwin, Sunday, 18 October
Mostly clear. High 52°, low 33°.
0Erwin, Monday, 19 October
Overcast. High 61°, low 35°.
0Erwin, Tuesday, 20 October
Overcast. High 61°, low 37°.
0Erwin, Wednesday, 21 October
Clear. High 65°, low 39°.
0Erwin, Thursday, 22 October
Clear. High 66°, low 41°.
0Erwin, Friday, 23 October
Clear. High 69°, low 44°.
0Erwin, Saturday, 24 October
Clear. High 72°, low 47°.
0.17
Erwin, Sunday, 25 October
Climate normal for this date — 60-year average.
0.09
Erwin, Monday, 26 October
Climate normal for this date — 60-year average.
0.15Erwin, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Erwin, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.12Erwin, Thursday, 29 October
Climate normal for this date — 60-year average.
0.13Erwin, Friday, 30 October
Climate normal for this date — 60-year average.
0.08Erwin, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Erwin, Sunday, 1 November
Climate normal for this date — 60-year average.
0.15Erwin, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Erwin, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.14Erwin, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Erwin, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Erwin, Friday, 6 November
Climate normal for this date — 60-year average.
0.14Erwin, Saturday, 7 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 Erwin, 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 Erwin, 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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