Weather in Harlan, IA
Harlan, Friday, 13 November, 07:18
Clear. Feels like 20°. High 42°, low 24°.
Monthly outlook for Harlan, IA: average high 45.3°, average low 30.6°. That is 0.4° above the climate normal for November. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 18 November (58.4°), the coolest 24 November (12.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 50.5° | 46.6° | +2.2° |
| 23 November – 2 December | 36.6° | 40.3° | -2.1° |
| 3 December – 12 December | at normal | 35° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Kimballton (13 mi).
0Harlan, Saturday, 14 November
Clear. High 44°, low 23°.
0
Harlan, Sunday, 15 November
Overcast. High 47°, low 27°.
0
Harlan, Monday, 16 November
Mostly clear. High 51°, low 32°.
0Harlan, Tuesday, 17 November
Mostly clear. High 54°, low 39°.
0Harlan, Wednesday, 18 November
Overcast. High 58°, low 45°.
0Harlan, Thursday, 19 November
Clear. High 57°, low 45°.
0.04
Harlan, Friday, 20 November
Light rain. High 56°, low 42°.
0.44Harlan, Saturday, 21 November
Rain. High 58°, low 40°.
0Harlan, Sunday, 22 November
Mostly clear. High 39°, low 30°.
0.1
Harlan, Monday, 23 November
Snow. High 28°, low 17°.
0Harlan, Tuesday, 24 November
Clear. High 27°, low 13°.
0
Harlan, Wednesday, 25 November
Partly cloudy. High 33°, low 21°.
0Harlan, Thursday, 26 November
Overcast. High 38°, low 26°.
0Harlan, Friday, 27 November
Overcast. High 46°, low 30°.
0Harlan, Saturday, 28 November
Partly cloudy. High 47°, low 35°.
0.08Harlan, Sunday, 29 November
Climate normal for this date — 60-year average.
0.04Harlan, Monday, 30 November
Climate normal for this date — 60-year average.
0.08Harlan, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04Harlan, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.06Harlan, Thursday, 3 December
Climate normal for this date — 60-year average.
0.04Harlan, Friday, 4 December
Climate normal for this date — 60-year average.
0.04Harlan, Saturday, 5 December
Climate normal for this date — 60-year average.
0.04Harlan, Sunday, 6 December
Climate normal for this date — 60-year average.
0.04Harlan, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Harlan, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.04Harlan, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.02Harlan, Thursday, 10 December
Climate normal for this date — 60-year average.
0.04Harlan, Friday, 11 December
Climate normal for this date — 60-year average.
0.04Harlan, Saturday, 12 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 Harlan, IA 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 Harlan, IA 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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