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As of 14:46 CDT

Weather in Jamaica, IL

78°Current weather

Jamaica, Thursday, 29 October, 14:46

Partly cloudy. Feels like 78°. High 78°, low 57°.

Pressure30.09 inHg
Wind9.6 mph W
Humidity51%
Visibility6.2 mi
Dew point58°
Fri, 3072° / 49°0Partly cloudy
72 °Partly cloudy

Jamaica, Friday, 30 October

Partly cloudy. High 72°, low 49°.

Pressure30.33 inHg
Wind7.9 mph E
Humidity47%
Visibility6.2 mi
Dew point44°
Sat, 3164° / 52°0Overcast
64 °Overcast

Jamaica, Saturday, 31 October

Overcast. High 64°, low 52°.

Pressure30.33 inHg
Wind7.7 mph SE
Humidity49%
Visibility6.2 mi
Dew point44°
Sun, 0170° / 57°0Overcast
70 °Overcast

Jamaica, Sunday, 1 November

Overcast. High 70°, low 57°.

Pressure30.30 inHg
Wind8.9 mph S
Humidity55%
Visibility6.2 mi
Dew point53°
Mon, 0263° / 53°0Overcast
63 °Overcast

Jamaica, Monday, 2 November

Overcast. High 63°, low 53°.

Pressure30.15 inHg
Wind10.7 mph S
Humidity73%
Visibility6.2 mi
Dew point53°
Tue, 0373° / 60°0Mostly clear
73 °Mostly clear

Jamaica, Tuesday, 3 November

Mostly clear. High 73°, low 60°.

Pressure29.94 inHg
Wind17.7 mph S
Humidity60%
Visibility—
Dew point56°
Wed, 0473° / 61°0.38Rain
73 °Rain

Jamaica, Wednesday, 4 November

Rain. High 73°, low 61°.

Pressure29.80 inHg
Wind19.1 mph SE
Humidity59%
Visibility—
Dew point57°
Thu, 0566° / 57°0.1Light rain
66 °Light rain

Jamaica, Thursday, 5 November

Light rain. High 66°, low 57°.

Pressure29.56 inHg
Wind9.3 mph W
Humidity88%
Visibility—
Dew point57°
Fri, 0656° / 43°0.09Light rain
56 °Light rain

Jamaica, Friday, 6 November

Light rain. High 56°, low 43°.

Pressure29.74 inHg
Wind12.9 mph NW
Humidity83%
Visibility—
Dew point45°
Sat, 0751° / 36°0Overcast
51 °Overcast

Jamaica, Saturday, 7 November

Overcast. High 51°, low 36°.

Pressure30.18 inHg
Wind11.2 mph NW
Humidity47%
Visibility—
Dew point28°
Sun, 0852° / 36°0Partly cloudy
52 °Partly cloudy

Jamaica, Sunday, 8 November

Partly cloudy. High 52°, low 36°.

Pressure30.36 inHg
Wind6.6 mph NE
Humidity40%
Visibility—
Dew point26°
Mon, 0946° / 41°0.15Light rain
46 °Light rain

Jamaica, Monday, 9 November

Light rain. High 46°, low 41°.

Pressure30.30 inHg
Wind5.7 mph E
Humidity89%
Visibility—
Dew point39°
Tue, 1049° / 40°0.03Light rain
49 °Light rain

Jamaica, Tuesday, 10 November

Light rain. High 49°, low 40°.

Pressure30.18 inHg
Wind8.6 mph NE
Humidity63%
Visibility—
Dew point33°
Wed, 1158° / 39°0Clear
58 °Clear

Jamaica, Wednesday, 11 November

Clear. High 58°, low 39°.

Pressure30.12 inHg
Wind9.2 mph W
Humidity53%
Visibility—
Dew point37°
Thu, 1259° / 43°0Overcast
59 °Overcast

Jamaica, Thursday, 12 November

Overcast. High 59°, low 43°.

Pressure29.91 inHg
Wind15.6 mph S
Humidity45%
Visibility—
Dew point35°
Fri, 1363° / 50°0.01Light rain
63 °Light rain

Jamaica, Friday, 13 November

Light rain. High 63°, low 50°.

Pressure29.62 inHg
Wind21.9 mph S
Humidity60%
Visibility—
Dew point47°

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, 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 Jamaica, 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.