Weather in Merrimac, IA
Merrimac, Friday, 13 November, 04:12
Partly cloudy. Feels like 30°. High 41°, low 29°.
Monthly outlook for Merrimac, IA: average high 49.7°, average low 34.2°. That is 1.6° above the climate normal for November. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 21 November (66.5°), the coolest 25 November (21°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 55° | 48.5° | +3.6° |
| 23 November – 2 December | 40.9° | 42.9° | -1.1° |
| 3 December – 12 December | at normal | 37.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Fairfield (14 mi).
0
Merrimac, Saturday, 14 November
Clear. High 44°, low 26°.
0Merrimac, Sunday, 15 November
Clear. High 48°, low 27°.
0Merrimac, Monday, 16 November
Clear. High 52°, low 30°.
0
Merrimac, Tuesday, 17 November
Mostly clear. High 55°, low 33°.
0
Merrimac, Wednesday, 18 November
Overcast. High 58°, low 39°.
0Merrimac, Thursday, 19 November
Clear. High 63°, low 49°.
0Merrimac, Friday, 20 November
Overcast. High 59°, low 47°.
0
Merrimac, Saturday, 21 November
Light rain. High 67°, low 54°.
0.27Merrimac, Sunday, 22 November
Rain. High 64°, low 55°.
0.86
Merrimac, Monday, 23 November
Snow. High 56°, low 31°.
0
Merrimac, Tuesday, 24 November
Partly cloudy. High 29°, low 24°.
0Merrimac, Wednesday, 25 November
Clear. High 33°, low 21°.
0Merrimac, Thursday, 26 November
Clear. High 37°, low 24°.
0Merrimac, Friday, 27 November
Overcast. High 43°, low 26°.
0Merrimac, Saturday, 28 November
Overcast. High 49°, low 32°.
0.08Merrimac, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Merrimac, Monday, 30 November
Climate normal for this date — 60-year average.
0.09
Merrimac, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.05Merrimac, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.07Merrimac, Thursday, 3 December
Climate normal for this date — 60-year average.
0.04Merrimac, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Merrimac, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Merrimac, Sunday, 6 December
Climate normal for this date — 60-year average.
0.06Merrimac, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Merrimac, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Merrimac, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.08Merrimac, Thursday, 10 December
Climate normal for this date — 60-year average.
0.08Merrimac, Friday, 11 December
Climate normal for this date — 60-year average.
0.05Merrimac, 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 Merrimac, 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 Merrimac, 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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