Weather in Isom, TN
Isom, Saturday, 8 August, 19:10
Light rain. Feels like 74°. High 88°, low 71°.
0.11Isom, Sunday, 9 August
Light rain. High 87°, low 73°.
0.02Isom, Monday, 10 August
Light rain. High 93°, low 74°.
0.04Isom, Tuesday, 11 August
Light rain. High 93°, low 70°.
0.4Isom, Wednesday, 12 August
Rain. High 86°, low 73°.
0.66Isom, Thursday, 13 August
Rain. High 88°, low 68°.
1.59Isom, Friday, 14 August
Heavy rain. High 74°, low 69°.
0
Isom, Saturday, 15 August
Overcast. High 81°, low 62°.
0Isom, Sunday, 16 August
Overcast. High 85°, low 60°.
0.5Isom, Monday, 17 August
Rain. High 74°, low 68°.
0.3Isom, Tuesday, 18 August
Rain. High 87°, low 70°.
0.08Isom, Wednesday, 19 August
Light rain. High 92°, low 72°.
0.04Isom, Thursday, 20 August
Light rain. High 88°, low 73°.
0.45Isom, Friday, 21 August
Rain. High 88°, low 72°.
0.37Isom, Saturday, 22 August
Rain. High 82°, low 71°.
0.01Isom, Sunday, 23 August
Light rain. High 81°, low 68°.
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 Isom, 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 Isom, 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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