Monthly outlook for Iron Lightning, SD: average high 52.9°, average low 36°. That is 5.8° above the climate normal for November. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 14 November (68.3°), the coolest 21 November (27.9°).
52.9°/36°
Average high / low
+5.8°
Above normal
2 / 2
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 November – 17 November
58.5°
43.7°
+8.2°
18 November – 27 November
43.5°
38.9°
+2.6°
28 November – 7 December
at normal
34.1°
—
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).
Mon, 0960° / 39°0
60 °
Iron Lightning, Monday, 9 November
Partly cloudy. High 60°, low 39°.
Pressure30.09 inHg
Wind10.2 mph NW
Humidity37%
Visibility6.2 mi
Dew point33°
Tue, 1059° / 38°0.07
59 °
Iron Lightning, Tuesday, 10 November
Light rain. High 59°, low 38°.
Pressure29.94 inHg
Wind3.8 mph W
Humidity48%
Visibility6.2 mi
Dew point36°
Wed, 1154° / 36°0
54 °
Iron Lightning, Wednesday, 11 November
Clear. High 54°, low 36°.
Pressure30.21 inHg
Wind8.9 mph NW
Humidity54%
Visibility6.2 mi
Dew point37°
Thu, 1245° / 32°0
45 °
Iron Lightning, Thursday, 12 November
Overcast. High 45°, low 32°.
Pressure30.21 inHg
Wind8 mph SE
Humidity66%
Visibility6.2 mi
Dew point32°
Fri, 1346° / 29°0
46 °
Iron Lightning, Friday, 13 November
Overcast. High 46°, low 29°.
Pressure30.06 inHg
Wind13.6 mph SE
Humidity67%
Visibility—
Dew point30°
Sat, 1468° / 35°0
68 °
Iron Lightning, Saturday, 14 November
Partly cloudy. High 68°, low 35°.
Pressure29.74 inHg
Wind10.3 mph SE
Humidity35%
Visibility—
Dew point30°
Sun, 1560° / 47°0
60 °
Iron Lightning, Sunday, 15 November
Clear. High 60°, low 47°.
Pressure29.74 inHg
Wind7.8 mph SE
Humidity29%
Visibility—
Dew point25°
Mon, 1661° / 46°0
61 °
Iron Lightning, Monday, 16 November
Partly cloudy. High 61°, low 46°.
Pressure29.71 inHg
Wind8.2 mph SE
Humidity30%
Visibility—
Dew point25°
Tue, 1765° / 43°0.07
65 °
Iron Lightning, Tuesday, 17 November
Light rain. High 65°, low 43°.
Pressure29.53 inHg
Wind22.5 mph W
Humidity33%
Visibility—
Dew point32°
Wed, 1844° / 39°0
44 °
Iron Lightning, Wednesday, 18 November
Overcast. High 44°, low 39°.
Pressure29.83 inHg
Wind29.5 mph W
Humidity59%
Visibility—
Dew point29°
Thu, 1943° / 35°0
43 °
Iron Lightning, Thursday, 19 November
Partly cloudy. High 43°, low 35°.
Pressure30.06 inHg
Wind27.5 mph W
Humidity55%
Visibility—
Dew point25°
Fri, 2043° / 31°0
43 °
Iron Lightning, Friday, 20 November
Mostly clear. High 43°, low 31°.
Pressure30.36 inHg
Wind14.2 mph NW
Humidity62%
Visibility—
Dew point26°
Sat, 2140° / 28°0
40 °
Iron Lightning, Saturday, 21 November
Overcast. High 40°, low 28°.
Pressure30.47 inHg
Wind7.4 mph E
Humidity67%
Visibility—
Dew point26°
Sun, 2242° / 31°0
42 °
Iron Lightning, Sunday, 22 November
Overcast. High 42°, low 31°.
Pressure30.47 inHg
Wind11.1 mph S
Humidity62%
Visibility—
Dew point27°
Mon, 2349° / 32°0
49 °
Iron Lightning, Monday, 23 November
Clear. High 49°, low 32°.
Pressure30.09 inHg
Wind15.7 mph SE
Humidity61%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2439° / 22°0.01
39 °
Iron Lightning, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.01 in
Chance of precipitation8%
Record high64° (1990)
Record low-15° (1985)
Wed, 2537° / 22°0.04
37 °
Iron Lightning, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.04 in
Chance of precipitation17%
Record high67° (1960)
Record low-5° (2010)
Thu, 2635° / 21°0.03
35 °
Iron Lightning, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.03 in
Chance of precipitation20%
Record high61° (1998)
Record low-14° (1985)
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)
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.