Weather in Johnstown, SC
Johnstown, Saturday, 8 August, 23:56
Clear. Feels like 80°. High 90°, low 73°.
0.01
Johnstown, Sunday, 9 August
Light rain. High 94°, low 74°.
0.12Johnstown, Monday, 10 August
Rain. High 97°, low 78°.
0.05Johnstown, Tuesday, 11 August
Light rain. High 99°, low 76°.
0.01Johnstown, Wednesday, 12 August
Light rain. High 99°, low 80°.
0.01Johnstown, Thursday, 13 August
Light rain. High 99°, low 78°.
0.06Johnstown, Friday, 14 August
Light rain. High 97°, low 77°.
0.26Johnstown, Saturday, 15 August
Light rain. High 89°, low 74°.
0
Johnstown, Sunday, 16 August
Overcast. High 91°, low 72°.
1.93Johnstown, Monday, 17 August
Heavy rain. High 93°, low 73°.
1.64Johnstown, Tuesday, 18 August
Heavy rain. High 95°, low 74°.
0.2Johnstown, Wednesday, 19 August
Light rain. High 92°, low 75°.
0
Johnstown, Thursday, 20 August
Clear. High 102°, low 78°.
0
Johnstown, Friday, 21 August
Mostly clear. High 89°, low 73°.
0Johnstown, Saturday, 22 August
Mostly clear. High 98°, low 75°.
0Johnstown, Sunday, 23 August
Mostly clear. High 102°, low 77°.
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 Johnstown, SC 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 Johnstown, SC 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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