Weather in Jamaica, IA
Jamaica, Friday, 23 October, 07:18
Overcast. Feels like 53°. High 75°, low 54°.
Monthly outlook for Jamaica, IA: average high 59.4°, average low 46°. That is 2.4° above the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 24 October (76.9°), the coolest 2 November (34.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 61.2° | 56.8° | +2.5° |
| 2 November – 11 November | 56.3° | 51.2° | +2.9° |
| 12 November – 21 November | at normal | 46.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jefferson (12 mi).
0
Jamaica, Saturday, 24 October
Partly cloudy. High 77°, low 55°.
0Jamaica, Sunday, 25 October
Overcast. High 70°, low 52°.
0Jamaica, Monday, 26 October
Overcast. High 68°, low 51°.
0.02
Jamaica, Tuesday, 27 October
Light rain. High 66°, low 56°.
0.49Jamaica, Wednesday, 28 October
Rain. High 64°, low 55°.
0.43Jamaica, Thursday, 29 October
Rain. High 59°, low 46°.
0.76Jamaica, Friday, 30 October
Rain. High 47°, low 44°.
0Jamaica, Saturday, 31 October
Overcast. High 45°, low 41°.
0.01Jamaica, Sunday, 1 November
Light rain. High 41°, low 38°.
0Jamaica, Monday, 2 November
Partly cloudy. High 51°, low 35°.
0
Jamaica, Tuesday, 3 November
Clear. High 54°, low 38°.
0Jamaica, Wednesday, 4 November
Clear. High 56°, low 38°.
0Jamaica, Thursday, 5 November
Clear. High 59°, low 40°.
0Jamaica, Friday, 6 November
Partly cloudy. High 61°, low 48°.
0Jamaica, Saturday, 7 November
Overcast. High 56°, low 45°.
0.04
Jamaica, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Jamaica, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Jamaica, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Jamaica, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Jamaica, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Jamaica, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Jamaica, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Jamaica, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Jamaica, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Jamaica, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Jamaica, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Jamaica, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Jamaica, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Jamaica, 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 Jamaica, IA 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 Jamaica, IA 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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