Weather in Iron Lightning, SD
Iron Lightning, Wednesday, 11 November, 17:16
Mostly clear. Feels like 53°. High 59°, low 38°.
Monthly outlook for Iron Lightning, SD: average high 48.1°, average low 33.8°. That is 3.9° above the climate normal for November. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 2 days and 0.3 inches. The warmest day looks like 17 November (60.3°), the coolest 22 November (20.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 52.2° | 42.7° | +5.3° |
| 21 November – 30 November | 41.1° | 36.8° | +2.4° |
| 1 December – 10 December | at normal | 33.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Thunder Butte (9 mi).
0
Iron Lightning, Thursday, 12 November
Overcast. High 45°, low 35°.
0
Iron Lightning, Friday, 13 November
Partly cloudy. High 45°, low 33°.
0
Iron Lightning, Saturday, 14 November
Mostly clear. High 49°, low 34°.
0
Iron Lightning, Sunday, 15 November
Clear. High 59°, low 38°.
0Iron Lightning, Monday, 16 November
Partly cloudy. High 59°, low 39°.
0Iron Lightning, Tuesday, 17 November
Partly cloudy. High 60°, low 43°.
0Iron Lightning, Wednesday, 18 November
Partly cloudy. High 56°, low 42°.
0.03
Iron Lightning, Thursday, 19 November
Light rain. High 46°, low 42°.
0.21Iron Lightning, Friday, 20 November
Light rain. High 44°, low 42°.
0.02
Iron Lightning, Saturday, 21 November
Snow. High 41°, low 25°.
0Iron Lightning, Sunday, 22 November
Partly cloudy. High 38°, low 21°.
0Iron Lightning, Monday, 23 November
Overcast. High 32°, low 21°.
0Iron Lightning, Tuesday, 24 November
Mostly clear. High 39°, low 21°.
0Iron Lightning, Wednesday, 25 November
Partly cloudy. High 47°, low 31°.
0Iron Lightning, Thursday, 26 November
Overcast. High 49°, low 35°.
0.03Iron Lightning, Friday, 27 November
Climate normal for this date — 60-year average.
0.02Iron Lightning, Saturday, 28 November
Climate normal for this date — 60-year average.
0.02Iron Lightning, Sunday, 29 November
Climate normal for this date — 60-year average.
0.04Iron Lightning, Monday, 30 November
Climate normal for this date — 60-year average.
0.03Iron Lightning, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.02Iron Lightning, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.02Iron Lightning, Thursday, 3 December
Climate normal for this date — 60-year average.
0.02Iron Lightning, Friday, 4 December
Climate normal for this date — 60-year average.
0.02Iron Lightning, Saturday, 5 December
Climate normal for this date — 60-year average.
0.01Iron Lightning, Sunday, 6 December
Climate normal for this date — 60-year average.
0.03Iron Lightning, Monday, 7 December
Climate normal for this date — 60-year average.
0.02Iron Lightning, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.01Iron Lightning, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.01Iron Lightning, Thursday, 10 December
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 Iron Lightning, 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 Iron Lightning, 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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