Lake Frederick, Saturday, 8 August, 22:05
Overcast. Feels like 77°. High 87°, low 70°.
Lake Frederick, Sunday, 9 August
Light rain. High 89°, low 71°.
Lake Frederick, Monday, 10 August
Rain. High 96°, low 69°.
Lake Frederick, Tuesday, 11 August
Heavy rain. High 89°, low 67°.
Lake Frederick, Wednesday, 12 August
Light rain. High 93°, low 68°.
Lake Frederick, Thursday, 13 August
Light rain. High 83°, low 65°.
Lake Frederick, Friday, 14 August
Overcast. High 71°, low 61°.
Lake Frederick, Saturday, 15 August
Mostly clear. High 82°, low 57°.
Lake Frederick, Sunday, 16 August
Overcast. High 85°, low 56°.
Lake Frederick, Monday, 17 August
Light rain. High 81°, low 64°.
Lake Frederick, Tuesday, 18 August
Overcast. High 78°, low 66°.
Lake Frederick, Wednesday, 19 August
Overcast. High 90°, low 64°.
Lake Frederick, Thursday, 20 August
Light rain. High 79°, low 65°.
Lake Frederick, Friday, 21 August
Clear. High 80°, low 57°.
Lake Frederick, Saturday, 22 August
Partly cloudy. High 84°, low 54°.
Lake Frederick, Sunday, 23 August
Light rain. High 86°, low 63°.
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 Lake Frederick, VA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
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.
They are real temperature extremes recorded in Lake Frederick, VA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.