Weather in Jamaica, IA
Jamaica, Tuesday, 27 October, 08:31
Light rain. Feels like 55°. High 64°, low 54°.
Monthly outlook for Jamaica, IA: average high 59.3°, average low 48.2°. That is 3.6° above the climate normal for October. Precipitation is expected on 8 days (about 2.9 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 28 October (73.5°), the coolest 11 November (35.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 61.7° | 54.4° | +4° |
| 6 November – 15 November | 55.4° | 49° | +3.6° |
| 16 November – 25 November | at normal | 45.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jefferson (12 mi).
0.06Jamaica, Wednesday, 28 October
Light rain. High 73°, low 55°.
0
Jamaica, Thursday, 29 October
Clear. High 66°, low 51°.
1.15Jamaica, Friday, 30 October
Heavy rain. High 64°, low 48°.
0.39Jamaica, Saturday, 31 October
Rain. High 66°, low 55°.
0
Jamaica, Sunday, 1 November
Overcast. High 66°, low 52°.
0Jamaica, Monday, 2 November
Overcast. High 60°, low 54°.
0.31Jamaica, Tuesday, 3 November
Light rain. High 57°, low 53°.
0.29Jamaica, Wednesday, 4 November
Light rain. High 52°, low 49°.
0.23Jamaica, Thursday, 5 November
Light rain. High 48°, low 46°.
0Jamaica, Friday, 6 November
Overcast. High 56°, low 42°.
0Jamaica, Saturday, 7 November
Overcast. High 58°, low 42°.
0Jamaica, Sunday, 8 November
Overcast. High 61°, low 44°.
0.05Jamaica, Monday, 9 November
Light rain. High 58°, low 49°.
0Jamaica, Tuesday, 10 November
Clear. High 48°, low 41°.
0Jamaica, Wednesday, 11 November
Overcast. High 52°, low 35°.
0.07
Jamaica, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Jamaica, Friday, 13 November
Climate normal for this date — 60-year average.
0.03
Jamaica, 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.
0.02Jamaica, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Jamaica, Monday, 23 November
Climate normal for this date — 60-year average.
0.05Jamaica, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.02Jamaica, Wednesday, 25 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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