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As of 04:34 CDT

Weather in Jamaica, IL

57°Current weather

Jamaica, Saturday, 31 October, 04:34

Overcast. Feels like 55°. High 67°, low 55°.

Pressure30.30 inHg
Wind7.3 mph SE
Humidity65%
Visibility6.2 mi
Dew point45°
Sun, 0169° / 55°0.04Light rain
69 °Light rain

Jamaica, Sunday, 1 November

Light rain. High 69°, low 55°.

Pressure30.30 inHg
Wind5.7 mph SE
Humidity52%
Visibility6.2 mi
Dew point48°
Mon, 0263° / 56°0Overcast
63 °Overcast

Jamaica, Monday, 2 November

Overcast. High 63°, low 56°.

Pressure30.15 inHg
Wind12.1 mph SE
Humidity69%
Visibility6.2 mi
Dew point50°
Tue, 0371° / 61°0Overcast
71 °Overcast

Jamaica, Tuesday, 3 November

Overcast. High 71°, low 61°.

Pressure30.03 inHg
Wind17 mph S
Humidity70%
Visibility6.2 mi
Dew point58°
Wed, 0466° / 64°0.55Rain
66 °Rain

Jamaica, Wednesday, 4 November

Rain. High 66°, low 64°.

Pressure29.83 inHg
Wind11.7 mph SE
Humidity94%
Visibility—
Dew point63°
Thu, 0565° / 57°0.48Rain
65 °Rain

Jamaica, Thursday, 5 November

Rain. High 65°, low 57°.

Pressure29.59 inHg
Wind10.5 mph SE
Humidity94%
Visibility—
Dew point63°
Fri, 0664° / 49°0Partly cloudy
64 °Partly cloudy

Jamaica, Friday, 6 November

Partly cloudy. High 64°, low 49°.

Pressure29.94 inHg
Wind6.7 mph NE
Humidity65%
Visibility—
Dew point50°
Sat, 0762° / 57°0.13Light rain
62 °Light rain

Jamaica, Saturday, 7 November

Light rain. High 62°, low 57°.

Pressure29.97 inHg
Wind5.1 mph E
Humidity91%
Visibility—
Dew point58°
Sun, 0869° / 59°0.66Rain
69 °Rain

Jamaica, Sunday, 8 November

Rain. High 69°, low 59°.

Pressure29.94 inHg
Wind6.5 mph W
Humidity73%
Visibility—
Dew point58°
Mon, 0964° / 58°0.29Rain
64 °Rain

Jamaica, Monday, 9 November

Rain. High 64°, low 58°.

Pressure29.91 inHg
Wind7.8 mph S
Humidity85%
Visibility—
Dew point59°
Tue, 1064° / 56°0.07Light rain
64 °Light rain

Jamaica, Tuesday, 10 November

Light rain. High 64°, low 56°.

Pressure29.85 inHg
Wind13.5 mph NW
Humidity81%
Visibility—
Dew point55°
Wed, 1157° / 44°0Clear
57 °Clear

Jamaica, Wednesday, 11 November

Clear. High 57°, low 44°.

Pressure30.06 inHg
Wind11.9 mph NW
Humidity41%
Visibility—
Dew point31°
Thu, 1259° / 43°0Overcast
59 °Overcast

Jamaica, Thursday, 12 November

Overcast. High 59°, low 43°.

Pressure30.00 inHg
Wind6.7 mph E
Humidity37%
Visibility—
Dew point30°
Fri, 1362° / 47°0Overcast
62 °Overcast

Jamaica, Friday, 13 November

Overcast. High 62°, low 47°.

Pressure29.97 inHg
Wind12.7 mph S
Humidity52%
Visibility—
Dew point41°
Sat, 1457° / 49°0Partly cloudy
57 °Partly cloudy

Jamaica, Saturday, 14 November

Partly cloudy. High 57°, low 49°.

Pressure30.09 inHg
Wind15.1 mph NW
Humidity60%
Visibility—
Dew point41°
Sun, 1564° / 47°0Overcast
64 °Overcast

Jamaica, Sunday, 15 November

Overcast. High 64°, low 47°.

Pressure30.03 inHg
Wind16.7 mph SW
Humidity46%
Visibility—
Dew point40°

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.