Weather in Merrimac, IL
Merrimac, Wednesday, 11 November, 06:54
Clear. Feels like 45°. High 72°, low 44°.
Monthly outlook for Merrimac, IL: average high 52.1°, average low 35.3°. That is 0.6° below the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 11 November (71.5°), the coolest 24 November (18°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 56.2° | 54.4° | +1° |
| 21 November – 30 November | 45.2° | 50.2° | -2.7° |
| 1 December – 10 December | at normal | 45.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — St. George (12 mi).
0
Merrimac, Thursday, 12 November
Overcast. High 55°, low 40°.
0Merrimac, Friday, 13 November
Overcast. High 44°, low 35°.
0Merrimac, Saturday, 14 November
Clear. High 47°, low 31°.
0Merrimac, Sunday, 15 November
Overcast. High 51°, low 32°.
0
Merrimac, Monday, 16 November
Mostly clear. High 54°, low 33°.
0Merrimac, Tuesday, 17 November
Clear. High 55°, low 35°.
0Merrimac, Wednesday, 18 November
Clear. High 58°, low 36°.
0
Merrimac, Thursday, 19 November
Light rain. High 62°, low 41°.
0.14Merrimac, Friday, 20 November
Light rain. High 64°, low 53°.
0.11Merrimac, Saturday, 21 November
Light rain. High 57°, low 43°.
0.12
Merrimac, Sunday, 22 November
Snow. High 39°, low 31°.
0Merrimac, Monday, 23 November
Overcast. High 30°, low 22°.
0Merrimac, Tuesday, 24 November
Clear. High 42°, low 18°.
0Merrimac, Wednesday, 25 November
Overcast. High 53°, low 31°.
0Merrimac, Thursday, 26 November
Overcast. High 51°, low 41°.
0.21
Merrimac, Friday, 27 November
Climate normal for this date — 60-year average.
0.1
Merrimac, Saturday, 28 November
Climate normal for this date — 60-year average.
0.09Merrimac, Sunday, 29 November
Climate normal for this date — 60-year average.
0.17Merrimac, Monday, 30 November
Climate normal for this date — 60-year average.
0.11Merrimac, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.09Merrimac, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.13Merrimac, Thursday, 3 December
Climate normal for this date — 60-year average.
0.08Merrimac, Friday, 4 December
Climate normal for this date — 60-year average.
0.11Merrimac, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Merrimac, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Merrimac, Monday, 7 December
Climate normal for this date — 60-year average.
0.09Merrimac, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Merrimac, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.11Merrimac, Thursday, 10 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, IL 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, IL 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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