Monthly outlook for Iron Lightning, SD: average high 47.2°, average low 31.6°. That is 3.4° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.3 inches. The warmest day looks like 15 November (60.1°), the coolest 23 November (12.1°).
47.2°/31.6°
Average high / low
+3.4°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
51.6°
42.7°
+5°
21 November – 30 November
39.8°
36.8°
+1.6°
1 December – 10 December
at normal
33.7°
—
November records over 66 years
77°2 November 2022All-time high
-18.2°13 November 1986All-time low
Climate normals and records are computed from the nearest reference point — Thunder Butte (9 mi).
Thu, 1245° / 33°0
45 °
Iron Lightning, Thursday, 12 November
Overcast. High 45°, low 33°.
Pressure30.21 inHg
Wind8.5 mph S
Humidity74%
Visibility6.2 mi
Dew point36°
Fri, 1348° / 30°0
48 °
Iron Lightning, Friday, 13 November
Clear. High 48°, low 30°.
Pressure30.00 inHg
Wind12.3 mph SE
Humidity62%
Visibility6.2 mi
Dew point34°
Sat, 1450° / 36°0
50 °
Iron Lightning, Saturday, 14 November
Overcast. High 50°, low 36°.
Pressure29.85 inHg
Wind15.1 mph SE
Humidity68%
Visibility6.2 mi
Dew point38°
Sun, 1560° / 41°0
60 °
Iron Lightning, Sunday, 15 November
Clear. High 60°, low 41°.
Pressure29.97 inHg
Wind11.7 mph S
Humidity62%
Visibility—
Dew point40°
Mon, 1657° / 41°0
57 °
Iron Lightning, Monday, 16 November
Overcast. High 57°, low 41°.
Pressure30.00 inHg
Wind13.9 mph SE
Humidity65%
Visibility—
Dew point39°
Tue, 1756° / 38°0
56 °
Iron Lightning, Tuesday, 17 November
Partly cloudy. High 56°, low 38°.
Pressure29.83 inHg
Wind14.9 mph SE
Humidity61%
Visibility—
Dew point35°
Wed, 1853° / 42°0
53 °
Iron Lightning, Wednesday, 18 November
Overcast. High 53°, low 42°.
Pressure29.68 inHg
Wind11.8 mph S
Humidity60%
Visibility—
Dew point36°
Thu, 1951° / 38°0
51 °
Iron Lightning, Thursday, 19 November
Overcast. High 51°, low 38°.
Pressure29.94 inHg
Wind9.5 mph NW
Humidity42%
Visibility—
Dew point24°
Fri, 2039° / 28°0
39 °
Iron Lightning, Friday, 20 November
Mostly clear. High 39°, low 28°.
Pressure30.45 inHg
Wind14.8 mph N
Humidity52%
Visibility—
Dew point20°
Sat, 2133° / 21°0
33 °
Iron Lightning, Saturday, 21 November
Overcast. High 33°, low 21°.
Pressure30.39 inHg
Wind17.6 mph N
Humidity53%
Visibility—
Dew point16°
Sun, 2220° / 13°0
20 °
Iron Lightning, Sunday, 22 November
Clear. High 20°, low 13°.
Pressure30.68 inHg
Wind18.7 mph N
Humidity35%
Visibility—
Dew point-6°
Mon, 2334° / 12°0
34 °
Iron Lightning, Monday, 23 November
Overcast. High 34°, low 12°.
Pressure30.33 inHg
Wind11.9 mph S
Humidity24%
Visibility—
Dew point-7°
Tue, 2449° / 28°0
49 °
Iron Lightning, Tuesday, 24 November
Overcast. High 49°, low 28°.
Pressure29.94 inHg
Wind9 mph NW
Humidity31%
Visibility—
Dew point14°
Wed, 2556° / 36°0
56 °
Iron Lightning, Wednesday, 25 November
Overcast. High 56°, low 36°.
Pressure29.83 inHg
Wind16.3 mph W
Humidity39%
Visibility—
Dew point25°
Thu, 2647° / 34°0
47 °
Iron Lightning, Thursday, 26 November
Overcast. High 47°, low 34°.
Pressure30.06 inHg
Wind7.6 mph SW
Humidity56%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2734° / 20°0.03
34 °
Iron Lightning, Friday, 27 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (2017)
Record low-17° (1985)
Sat, 2835° / 20°0.02
35 °
Iron Lightning, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation10%
Record high57° (2002)
Record low-10° (1985)
Sun, 2935° / 20°0.02
35 °
Iron Lightning, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation8%
Record high57° (2021)
Record low-11° (1964)
Mon, 3034° / 20°0.04
34 °
Iron Lightning, Monday, 30 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.04 in
Chance of precipitation15%
Record high60° (1995)
Record low-9° (1964)
Tue, 0135° / 21°0.03
35 °
Iron Lightning, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2021)
Record low-9° (1985)
Wed, 0234° / 19°0.02
34 °
Iron Lightning, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.02 in
Chance of precipitation15%
Record high59° (2012)
Record low-23° (1985)
Thu, 0335° / 20°0.02
35 °
Iron Lightning, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation8%
Record high54° (2012)
Record low-10° (1985)
Fri, 0436° / 20°0.02
36 °
Iron Lightning, Friday, 4 December
Climate normal for this date — 60-year average.
Average high36°
Average low20°
Average precipitation0.02 in
Chance of precipitation12%
Record high62° (1965)
Record low-3° (1984)
Sat, 0533° / 18°0.02
33 °
Iron Lightning, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.02 in
Chance of precipitation20%
Record high56° (1963)
Record low-7° (1972)
Sun, 0632° / 16°0.01
32 °
Iron Lightning, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.01 in
Chance of precipitation7%
Record high56° (2023)
Record low-21° (1972)
Mon, 0732° / 17°0.03
32 °
Iron Lightning, Monday, 7 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.03 in
Chance of precipitation20%
Record high57° (2024)
Record low-21° (2013)
Tue, 0832° / 16°0.02
32 °
Iron Lightning, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.02 in
Chance of precipitation17%
Record high58° (2020)
Record low-21° (1972)
Wed, 0934° / 16°0.01
34 °
Iron Lightning, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high34°
Average low16°
Average precipitation0.01 in
Chance of precipitation13%
Record high58° (1990)
Record low-28° (1977)
Thu, 1033° / 17°0.01
33 °
Iron Lightning, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.01 in
Chance of precipitation5%
Record high60° (1987)
Record low-19° (1972)
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.