Weather in North Spearfish, SD
North Spearfish, Saturday, 8 August, 22:12
Clear. Feels like 74°. High 96°, low 64°.
Monthly outlook for North Spearfish, SD: average high 87.1°, average low 63.2°. That is 3.1° above the climate normal for August. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 10 August (97.4°), the coolest 19 August (56.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 88.6° | 81.5° | +3.9° |
| 18 August – 27 August | 84.7° | 81.5° | +1.8° |
| 28 August – 6 September | at normal | 79.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Whitewood (13 mi).
0
North Spearfish, Sunday, 9 August
Overcast. High 88°, low 66°.
0
North Spearfish, Monday, 10 August
Clear. High 97°, low 68°.
0.01
North Spearfish, Tuesday, 11 August
Light rain. High 92°, low 66°.
0.13North Spearfish, Wednesday, 12 August
Rain. High 92°, low 61°.
0.2North Spearfish, Thursday, 13 August
Rain. High 79°, low 60°.
0.93North Spearfish, Friday, 14 August
Heavy rain. High 87°, low 62°.
0.03North Spearfish, Saturday, 15 August
Light rain. High 81°, low 60°.
0.19North Spearfish, Sunday, 16 August
Light rain. High 81°, low 65°.
0
North Spearfish, Monday, 17 August
Partly cloudy. High 92°, low 65°.
0North Spearfish, Tuesday, 18 August
Overcast. High 91°, low 65°.
0North Spearfish, Wednesday, 19 August
Partly cloudy. High 83°, low 57°.
0.22North Spearfish, Thursday, 20 August
Rain. High 85°, low 61°.
0.11North Spearfish, Friday, 21 August
Light rain. High 76°, low 66°.
0North Spearfish, Saturday, 22 August
Clear. High 80°, low 63°.
0
North Spearfish, Sunday, 23 August
Mostly clear. High 93°, low 60°.
0.04North Spearfish, Monday, 24 August
Climate normal for this date — 60-year average.
0.03North Spearfish, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07
North Spearfish, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.06North Spearfish, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02North Spearfish, Friday, 28 August
Climate normal for this date — 60-year average.
0.04North Spearfish, Saturday, 29 August
Climate normal for this date — 60-year average.
0.04North Spearfish, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05North Spearfish, Monday, 31 August
Climate normal for this date — 60-year average.
0.05North Spearfish, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.05North Spearfish, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.03North Spearfish, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08North Spearfish, Friday, 4 September
Climate normal for this date — 60-year average.
0.08North Spearfish, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05North Spearfish, Sunday, 6 September
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 North Spearfish, SD 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 North Spearfish, SD 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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