Weather in Hartley, SD
Hartley, Thursday, 22 October, 02:15
Partly cloudy. Feels like 53°. High 80°, low 53°.
Monthly outlook for Hartley, SD: average high 58°, average low 42.8°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 23 October (82.1°), the coolest 2 November (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 59.1° | 57° | +1.2° |
| 1 November – 10 November | 56.1° | 51.1° | +2.8° |
| 11 November – 20 November | at normal | 46.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bridger (11 mi).
0
Hartley, Friday, 23 October
Overcast. High 82°, low 59°.
0
Hartley, Saturday, 24 October
Clear. High 65°, low 43°.
0.34
Hartley, Sunday, 25 October
Rain. High 43°, low 39°.
0Hartley, Monday, 26 October
Light rain. High 43°, low 38°.
0.07
Hartley, Tuesday, 27 October
Snow. High 43°, low 37°.
0.02Hartley, Wednesday, 28 October
Light rain. High 46°, low 36°.
0Hartley, Thursday, 29 October
Overcast. High 64°, low 39°.
0Hartley, Friday, 30 October
Overcast. High 67°, low 46°.
0Hartley, Saturday, 31 October
Overcast. High 59°, low 48°.
0
Hartley, Sunday, 1 November
Partly cloudy. High 52°, low 39°.
0Hartley, Monday, 2 November
Overcast. High 50°, low 34°.
0Hartley, Tuesday, 3 November
Partly cloudy. High 57°, low 39°.
0Hartley, Wednesday, 4 November
Overcast. High 65°, low 50°.
0Hartley, Thursday, 5 November
Partly cloudy. High 49°, low 36°.
0Hartley, Friday, 6 November
Overcast. High 64°, low 50°.
0.03
Hartley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Hartley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Hartley, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Hartley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.01Hartley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Hartley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Hartley, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Hartley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Hartley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Hartley, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Hartley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.03Hartley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.03Hartley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.01Hartley, Friday, 20 November
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 Hartley, 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 Hartley, 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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