Big Stone City, Sunday, 9 August, 04:20
Light rain. Feels like 65°. High 84°, low 64°.
Big Stone City, Monday, 10 August
Mostly clear. High 88°, low 60°.
Big Stone City, Tuesday, 11 August
Heavy rain. High 91°, low 61°.
Big Stone City, Wednesday, 12 August
Mostly clear. High 86°, low 60°.
Big Stone City, Thursday, 13 August
Overcast. High 75°, low 60°.
Big Stone City, Friday, 14 August
Overcast. High 82°, low 57°.
Big Stone City, Saturday, 15 August
Light rain. High 72°, low 61°.
Big Stone City, Sunday, 16 August
Overcast. High 87°, low 63°.
Big Stone City, Monday, 17 August
Light rain. High 89°, low 61°.
Big Stone City, Tuesday, 18 August
Rain. High 96°, low 66°.
Big Stone City, Wednesday, 19 August
Heavy rain. High 94°, low 68°.
Big Stone City, Thursday, 20 August
Overcast. High 77°, low 65°.
Big Stone City, Friday, 21 August
Light rain. High 84°, low 61°.
Big Stone City, Saturday, 22 August
Rain. High 84°, low 64°.
Big Stone City, Sunday, 23 August
Light rain. High 72°, low 65°.
Big Stone City, Monday, 24 August
Light rain. High 70°, low 61°.
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 Big Stone City, SD 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 Big Stone City, SD 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.