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As of 14:03 CST

Weather in Jamaica, IL

64°Current weather

Jamaica, Monday, 9 November, 14:03

Clear. Feels like 62°. High 64°, low 36°.

Pressure30.09 inHg
Wind6.3 mph SW
Humidity45%
Visibility6.2 mi
Dew point42°
Tue, 1067° / 39°0Clear
67 °Clear

Jamaica, Tuesday, 10 November

Clear. High 67°, low 39°.

Pressure30.06 inHg
Wind4.5 mph NW
Humidity55%
Visibility6.2 mi
Dew point46°
Wed, 1161° / 41°0.37Heavy rain
61 °Heavy rain

Jamaica, Wednesday, 11 November

Heavy rain. High 61°, low 41°.

Pressure29.80 inHg
Wind7.7 mph SE
Humidity68%
Visibility6.2 mi
Dew point51°
Thu, 1249° / 39°0Overcast
49 °Overcast

Jamaica, Thursday, 12 November

Overcast. High 49°, low 39°.

Pressure29.94 inHg
Wind12.4 mph NW
Humidity51%
Visibility6.2 mi
Dew point30°
Fri, 1341° / 34°0Overcast
41 °Overcast

Jamaica, Friday, 13 November

Overcast. High 41°, low 34°.

Pressure30.03 inHg
Wind12.1 mph NW
Humidity73%
Visibility6.2 mi
Dew point29°
Sat, 1446° / 30°0Clear
46 °Clear

Jamaica, Saturday, 14 November

Clear. High 46°, low 30°.

Pressure30.24 inHg
Wind9.1 mph NW
Humidity58%
Visibility—
Dew point29°
Sun, 1554° / 32°0Partly cloudy
54 °Partly cloudy

Jamaica, Sunday, 15 November

Partly cloudy. High 54°, low 32°.

Pressure30.09 inHg
Wind8.8 mph S
Humidity29%
Visibility—
Dew point18°
Mon, 1657° / 44°0.09Light rain
57 °Light rain

Jamaica, Monday, 16 November

Light rain. High 57°, low 44°.

Pressure29.97 inHg
Wind7.5 mph SE
Humidity84%
Visibility—
Dew point51°
Tue, 1765° / 50°0Partly cloudy
65 °Partly cloudy

Jamaica, Tuesday, 17 November

Partly cloudy. High 65°, low 50°.

Pressure30.18 inHg
Wind7.8 mph E
Humidity64%
Visibility—
Dew point49°
Wed, 1866° / 53°0Overcast
66 °Overcast

Jamaica, Wednesday, 18 November

Overcast. High 66°, low 53°.

Pressure30.30 inHg
Wind7.7 mph SE
Humidity58%
Visibility—
Dew point48°
Thu, 1966° / 48°0Overcast
66 °Overcast

Jamaica, Thursday, 19 November

Overcast. High 66°, low 48°.

Pressure30.21 inHg
Wind15.2 mph S
Humidity56%
Visibility—
Dew point46°
Fri, 2062° / 48°0.02Light rain
62 °Light rain

Jamaica, Friday, 20 November

Light rain. High 62°, low 48°.

Pressure30.06 inHg
Wind16.7 mph S
Humidity33%
Visibility—
Dew point31°
Sat, 2151° / 40°0Overcast
51 °Overcast

Jamaica, Saturday, 21 November

Overcast. High 51°, low 40°.

Pressure30.09 inHg
Wind7.7 mph NW
Humidity44%
Visibility—
Dew point27°
Sun, 2242° / 37°0.19Rain
42 °Rain

Jamaica, Sunday, 22 November

Rain. High 42°, low 37°.

Pressure30.06 inHg
Wind7.4 mph NE
Humidity76%
Visibility—
Dew point34°
Mon, 2346° / 37°0Overcast
46 °Overcast

Jamaica, Monday, 23 November

Overcast. High 46°, low 37°.

Pressure30.12 inHg
Wind7.7 mph NW
Humidity53%
Visibility—
Dew point28°
Tue, 2447° / 32°0Mostly clear
47 °Mostly clear

Jamaica, Tuesday, 24 November

Mostly clear. High 47°, low 32°.

Pressure30.15 inHg
Wind7.3 mph W
Humidity38%
Visibility—
Dew point20°

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.