Weather in Jamaica, IA
Jamaica, Thursday, 29 October, 01:25
Overcast. Feels like 61°. High 68°, low 49°.
Monthly outlook for Jamaica, IA: average high 56.5°, average low 46°. That is 2.7° above the climate normal for October. Precipitation is expected on 6 days (about 2.7 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 29 October (68.4°), the coolest 13 November (33.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 60.4° | 53.6° | +3.8° |
| 8 November – 17 November | 49.9° | 48.2° | +1° |
| 18 November – 27 November | at normal | 43.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jefferson (12 mi).
0.72
Jamaica, Friday, 30 October
Heavy rain. High 57°, low 49°.
0.05Jamaica, Saturday, 31 October
Light rain. High 67°, low 54°.
0.01Jamaica, Sunday, 1 November
Light rain. High 65°, low 55°.
1.22Jamaica, Monday, 2 November
Rain. High 66°, low 59°.
0.46Jamaica, Tuesday, 3 November
Rain. High 60°, low 51°.
0.07Jamaica, Wednesday, 4 November
Light rain. High 63°, low 58°.
0.04Jamaica, Thursday, 5 November
Light rain. High 56°, low 51°.
0.01Jamaica, Friday, 6 November
Light rain. High 52°, low 42°.
0Jamaica, Saturday, 7 November
Overcast. High 50°, low 37°.
0Jamaica, Sunday, 8 November
Overcast. High 53°, low 39°.
0.13Jamaica, Monday, 9 November
Light rain. High 53°, low 43°.
0
Jamaica, Tuesday, 10 November
Clear. High 52°, low 41°.
0Jamaica, Wednesday, 11 November
Overcast. High 48°, low 38°.
0
Jamaica, Thursday, 12 November
Partly cloudy. High 46°, low 35°.
0Jamaica, Friday, 13 November
Clear. High 47°, low 34°.
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.
0.07Jamaica, Thursday, 26 November
Climate normal for this date — 60-year average.
0.08Jamaica, Friday, 27 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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