Weather in Hammond, IL
Hammond, Monday, 12 October, 20:58
Mostly clear. Feels like 73°. High 89°, low 60°.
Monthly outlook for Hammond, IL: average high 70.5°, average low 53.5°. That is 4.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (89.3°), the coolest 17 October (40.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 73.4° | 64.2° | +5.1° |
| 22 October – 31 October | 65.6° | 60.7° | +2.7° |
| 1 November – 10 November | at normal | 56.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lake City (7 mi).
0
Hammond, Tuesday, 13 October
Clear. High 89°, low 67°.
0.13
Hammond, Wednesday, 14 October
Rain. High 82°, low 66°.
0.49Hammond, Thursday, 15 October
Rain. High 77°, low 65°.
0.06Hammond, Friday, 16 October
Light rain. High 61°, low 50°.
0Hammond, Saturday, 17 October
Clear. High 60°, low 40°.
0
Hammond, Sunday, 18 October
Mostly clear. High 66°, low 44°.
0
Hammond, Monday, 19 October
Overcast. High 68°, low 50°.
0.15Hammond, Tuesday, 20 October
Light rain. High 68°, low 59°.
0Hammond, Wednesday, 21 October
Overcast. High 74°, low 57°.
0Hammond, Thursday, 22 October
Overcast. High 80°, low 61°.
0.15Hammond, Friday, 23 October
Light rain. High 70°, low 54°.
0Hammond, Saturday, 24 October
Overcast. High 64°, low 49°.
0
Hammond, Sunday, 25 October
Partly cloudy. High 57°, low 47°.
0Hammond, Monday, 26 October
Overcast. High 58°, low 43°.
0.03Hammond, Tuesday, 27 October
Light rain. High 64°, low 43°.
0.06Hammond, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Hammond, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Hammond, Friday, 30 October
Climate normal for this date — 60-year average.
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.
0.04Hammond, 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.
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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