Weather in Hammond, IL
Hammond, Thursday, 15 October, 05:58
Overcast. Feels like 64°. High 78°, low 64°.
Monthly outlook for Hammond, IL: average high 62.9°, average low 46.4°. That is 0.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 15 October (78.3°), the coolest 28 October (36.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 67.6° | 63° | +2.6° |
| 25 October – 3 November | 55° | 59.3° | -2.4° |
| 4 November – 13 November | at normal | 54° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lake City (7 mi).
0.17
Hammond, Friday, 16 October
Rain. High 64°, low 49°.
0
Hammond, Saturday, 17 October
Clear. High 57°, low 40°.
0Hammond, Sunday, 18 October
Clear. High 62°, low 41°.
0
Hammond, Monday, 19 October
Partly cloudy. High 66°, low 41°.
0Hammond, Tuesday, 20 October
Clear. High 69°, low 46°.
0Hammond, Wednesday, 21 October
Clear. High 71°, low 53°.
0Hammond, Thursday, 22 October
Overcast. High 72°, low 51°.
0Hammond, Friday, 23 October
Overcast. High 75°, low 52°.
0.59Hammond, Saturday, 24 October
Rain. High 62°, low 56°.
0.24Hammond, Sunday, 25 October
Rain. High 62°, low 47°.
0Hammond, Monday, 26 October
Clear. High 54°, low 40°.
0.01Hammond, Tuesday, 27 October
Light rain. High 47°, low 40°.
0Hammond, Wednesday, 28 October
Clear. High 58°, low 36°.
0Hammond, Thursday, 29 October
Partly cloudy. High 63°, low 48°.
0Hammond, Friday, 30 October
Clear. High 45°, low 38°.
0.17
Hammond, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Hammond, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Hammond, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Hammond, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Hammond, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Hammond, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Hammond, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Hammond, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04
Hammond, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Hammond, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Hammond, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Hammond, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Hammond, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Hammond, Friday, 13 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 Hammond, 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 Hammond, 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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