Weather in Harlan, IA
Harlan, Friday, 23 October, 06:54
Overcast. Feels like 56°. High 76°, low 57°.
Monthly outlook for Harlan, IA: average high 58.5°, average low 46.1°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 23 October (76.1°), the coolest 2 November (34°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 59.9° | 56.6° | +1.8° |
| 2 November – 11 November | 56.1° | 51° | +2.9° |
| 12 November – 21 November | at normal | 46.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kimballton (13 mi).
0
Harlan, Saturday, 24 October
Partly cloudy. High 76°, low 58°.
0Harlan, Sunday, 25 October
Overcast. High 69°, low 52°.
0.05
Harlan, Monday, 26 October
Light rain. High 70°, low 51°.
0.02Harlan, Tuesday, 27 October
Light rain. High 62°, low 58°.
0.36Harlan, Wednesday, 28 October
Rain. High 61°, low 55°.
0.31Harlan, Thursday, 29 October
Rain. High 57°, low 45°.
0.79Harlan, Friday, 30 October
Rain. High 45°, low 41°.
0Harlan, Saturday, 31 October
Overcast. High 42°, low 40°.
0
Harlan, Sunday, 1 November
Light snow. High 40°, low 37°.
0
Harlan, Monday, 2 November
Clear. High 50°, low 34°.
0Harlan, Tuesday, 3 November
Clear. High 53°, low 37°.
0Harlan, Wednesday, 4 November
Clear. High 55°, low 37°.
0
Harlan, Thursday, 5 November
Mostly clear. High 60°, low 40°.
0Harlan, Friday, 6 November
Partly cloudy. High 61°, low 48°.
0Harlan, Saturday, 7 November
Overcast. High 57°, low 46°.
0.05Harlan, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Harlan, Monday, 9 November
Climate normal for this date — 60-year average.
0.08Harlan, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Harlan, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Harlan, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Harlan, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Harlan, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Harlan, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Harlan, Monday, 16 November
Climate normal for this date — 60-year average.
0.07Harlan, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Harlan, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Harlan, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Harlan, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Harlan, Saturday, 21 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 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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