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As of 11:16 CST

Weather in Jamaica, IL

54°Current weather

Jamaica, Sunday, 8 November, 11:16

Clear. Feels like 52°. High 57°, low 35°.

Pressure30.06 inHg
Wind10.5 mph SW
Humidity68%
Visibility6.2 mi
Dew point43°
Mon, 0962° / 35°0Clear
62 °Clear

Jamaica, Monday, 9 November

Clear. High 62°, low 35°.

Pressure30.15 inHg
Wind4.9 mph SW
Humidity51%
Visibility6.2 mi
Dew point41°
Tue, 1064° / 44°0Clear
64 °Clear

Jamaica, Tuesday, 10 November

Clear. High 64°, low 44°.

Pressure30.06 inHg
Wind3.5 mph W
Humidity64%
Visibility6.2 mi
Dew point50°
Wed, 1162° / 46°0.06Light rain
62 °Light rain

Jamaica, Wednesday, 11 November

Light rain. High 62°, low 46°.

Pressure29.74 inHg
Wind11.7 mph SW
Humidity68%
Visibility5.5 mi
Dew point52°
Thu, 1246° / 40°0Overcast
46 °Overcast

Jamaica, Thursday, 12 November

Overcast. High 46°, low 40°.

Pressure29.91 inHg
Wind16 mph NW
Humidity64%
Visibility—
Dew point32°
Fri, 1344° / 33°0Partly cloudy
44 °Partly cloudy

Jamaica, Friday, 13 November

Partly cloudy. High 44°, low 33°.

Pressure30.00 inHg
Wind11.5 mph NW
Humidity58%
Visibility—
Dew point29°
Sat, 1445° / 31°0Clear
45 °Clear

Jamaica, Saturday, 14 November

Clear. High 45°, low 31°.

Pressure30.00 inHg
Wind12.3 mph NW
Humidity47%
Visibility—
Dew point23°
Sun, 1557° / 34°0Overcast
57 °Overcast

Jamaica, Sunday, 15 November

Overcast. High 57°, low 34°.

Pressure29.97 inHg
Wind11.3 mph SW
Humidity39%
Visibility—
Dew point27°
Mon, 1659° / 42°0Mostly clear
59 °Mostly clear

Jamaica, Monday, 16 November

Mostly clear. High 59°, low 42°.

Pressure30.06 inHg
Wind5.9 mph E
Humidity47%
Visibility—
Dew point36°
Tue, 1763° / 46°0Overcast
63 °Overcast

Jamaica, Tuesday, 17 November

Overcast. High 63°, low 46°.

Pressure30.06 inHg
Wind11.2 mph E
Humidity49%
Visibility—
Dew point40°
Wed, 1853° / 46°0.49Rain
53 °Rain

Jamaica, Wednesday, 18 November

Rain. High 53°, low 46°.

Pressure30.03 inHg
Wind14.7 mph SE
Humidity89%
Visibility—
Dew point43°
Thu, 1959° / 49°0.04Light rain
59 °Light rain

Jamaica, Thursday, 19 November

Light rain. High 59°, low 49°.

Pressure29.97 inHg
Wind10.3 mph SE
Humidity93%
Visibility—
Dew point55°
Fri, 2065° / 58°0.12Light rain
65 °Light rain

Jamaica, Friday, 20 November

Light rain. High 65°, low 58°.

Pressure30.09 inHg
Wind14.1 mph S
Humidity78%
Visibility—
Dew point57°
Sat, 2162° / 56°0.59Rain
62 °Rain

Jamaica, Saturday, 21 November

Rain. High 62°, low 56°.

Pressure29.97 inHg
Wind17.8 mph SE
Humidity86%
Visibility—
Dew point57°
Sun, 2261° / 56°1.34Heavy rain
61 °Heavy rain

Jamaica, Sunday, 22 November

Heavy rain. High 61°, low 56°.

Pressure29.59 inHg
Wind12.5 mph S
Humidity98%
Visibility—
Dew point60°
Mon, 2356° / 46°0.35Rain
56 °Rain

Jamaica, Monday, 23 November

Rain. High 56°, low 46°.

Pressure29.80 inHg
Wind14.8 mph N
Humidity49%
Visibility—
Dew point35°

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.