Weather in Merrillville, IN
Merrillville, Friday, 23 October, 07:10
Fog. Feels like 42°. High 72°, low 42°.
Monthly outlook for Merrillville, IN: average high 62.8°, average low 47.9°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 29 October (74.9°), the coolest 3 November (39°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 67° | 57.1° | +5.5° |
| 2 November – 11 November | 55.9° | 52.4° | +1.9° |
| 12 November – 21 November | at normal | 47.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Salt Creek Commons (10 mi).
0
Merrillville, Saturday, 24 October
Overcast. High 69°, low 45°.
0
Merrillville, Sunday, 25 October
Clear. High 71°, low 49°.
0Merrillville, Monday, 26 October
Overcast. High 62°, low 50°.
0Merrillville, Tuesday, 27 October
Overcast. High 65°, low 50°.
0.02
Merrillville, Wednesday, 28 October
Light rain. High 70°, low 53°.
0Merrillville, Thursday, 29 October
Overcast. High 75°, low 59°.
0.22Merrillville, Friday, 30 October
Light rain. High 65°, low 56°.
0.6Merrillville, Saturday, 31 October
Rain. High 61°, low 58°.
0.05Merrillville, Sunday, 1 November
Light rain. High 60°, low 49°.
0.04Merrillville, Monday, 2 November
Light rain. High 48°, low 42°.
0Merrillville, Tuesday, 3 November
Clear. High 53°, low 39°.
0Merrillville, Wednesday, 4 November
Clear. High 55°, low 41°.
0Merrillville, Thursday, 5 November
Clear. High 59°, low 42°.
0Merrillville, Friday, 6 November
Overcast. High 60°, low 44°.
0
Merrillville, Saturday, 7 November
Partly cloudy. High 61°, low 46°.
0.06Merrillville, Sunday, 8 November
Climate normal for this date — 60-year average.
0.15
Merrillville, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Merrillville, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Merrillville, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Merrillville, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Merrillville, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Merrillville, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Merrillville, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Merrillville, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Merrillville, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.12Merrillville, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Merrillville, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Merrillville, Friday, 20 November
Climate normal for this date — 60-year average.
0.12Merrillville, 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 Merrillville, IN 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 Merrillville, IN 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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