Weather in Merna, IL
Merna, Thursday, 8 October, 03:12
Mostly clear. Feels like 53°. High 79°, low 52°.
Monthly outlook for Merna, IL: average high 70.6°, average low 50.8°. That is 4.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 15 October (91.6°), the coolest 21 October (41.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 76.7° | 64.7° | +6.7° |
| 18 October – 27 October | 60.5° | 59.9° | +0.3° |
| 28 October – 6 November | at normal | 56.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bloomington (8 mi).
0
Merna, Friday, 9 October
Overcast. High 83°, low 52°.
0
Merna, Saturday, 10 October
Clear. High 81°, low 60°.
0.08
Merna, Sunday, 11 October
Light rain. High 70°, low 60°.
0
Merna, Monday, 12 October
Partly cloudy. High 85°, low 57°.
0
Merna, Tuesday, 13 October
Mostly clear. High 74°, low 49°.
0Merna, Wednesday, 14 October
Overcast. High 64°, low 43°.
0Merna, Thursday, 15 October
Clear. High 92°, low 61°.
0.14Merna, Friday, 16 October
Light rain. High 83°, low 61°.
0Merna, Saturday, 17 October
Overcast. High 55°, low 46°.
0Merna, Sunday, 18 October
Mostly clear. High 56°, low 44°.
0Merna, Monday, 19 October
Overcast. High 62°, low 43°.
0Merna, Tuesday, 20 October
Partly cloudy. High 66°, low 47°.
0Merna, Wednesday, 21 October
Partly cloudy. High 58°, low 41°.
0Merna, Thursday, 22 October
Overcast. High 66°, low 45°.
0.07Merna, Friday, 23 October
Light rain. High 55°, low 51°.
0.11Merna, Saturday, 24 October
Climate normal for this date — 60-year average.
0.13Merna, Sunday, 25 October
Climate normal for this date — 60-year average.
0.14Merna, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Merna, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Merna, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.08Merna, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Merna, Friday, 30 October
Climate normal for this date — 60-year average.
0.17
Merna, Saturday, 31 October
Climate normal for this date — 60-year average.
0.19Merna, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Merna, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Merna, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Merna, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Merna, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Merna, Friday, 6 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 Merna, 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 Merna, 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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