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As of 08:30 CST

Weather in Jamaica, IL

38°Current weather

Jamaica, Friday, 13 November, 08:30

Light rain. Feels like 29°. High 43°, low 34°.

Pressure30.03 inHg
Wind13.3 mph N
Humidity83%
Visibility6.2 mi
Dew point33°
Sat, 1447° / 30°0Clear
47 °Clear

Jamaica, Saturday, 14 November

Clear. High 47°, low 30°.

Pressure30.27 inHg
Wind7.1 mph NW
Humidity54%
Visibility6.2 mi
Dew point26°
Sun, 1549° / 29°0Mostly clear
49 °Mostly clear

Jamaica, Sunday, 15 November

Mostly clear. High 49°, low 29°.

Pressure30.45 inHg
Wind2.3 mph NW
Humidity54%
Visibility6.2 mi
Dew point32°
Mon, 1652° / 30°0Clear
52 °Clear

Jamaica, Monday, 16 November

Clear. High 52°, low 30°.

Pressure30.53 inHg
Wind4.5 mph SW
Humidity52%
Visibility6.2 mi
Dew point34°
Tue, 1753° / 32°0Mostly clear
53 °Mostly clear

Jamaica, Tuesday, 17 November

Mostly clear. High 53°, low 32°.

Pressure30.50 inHg
Wind7.1 mph S
Humidity50%
Visibility—
Dew point31°
Wed, 1858° / 36°0Clear
58 °Clear

Jamaica, Wednesday, 18 November

Clear. High 58°, low 36°.

Pressure30.39 inHg
Wind11 mph S
Humidity48%
Visibility—
Dew point35°
Thu, 1958° / 45°0.06Light rain
58 °Light rain

Jamaica, Thursday, 19 November

Light rain. High 58°, low 45°.

Pressure30.24 inHg
Wind12.9 mph S
Humidity62%
Visibility—
Dew point44°
Fri, 2062° / 48°0Partly cloudy
62 °Partly cloudy

Jamaica, Friday, 20 November

Partly cloudy. High 62°, low 48°.

Pressure30.36 inHg
Wind7 mph SE
Humidity65%
Visibility—
Dew point47°
Sat, 2167° / 50°0Partly cloudy
67 °Partly cloudy

Jamaica, Saturday, 21 November

Partly cloudy. High 67°, low 50°.

Pressure29.91 inHg
Wind26.7 mph S
Humidity38%
Visibility—
Dew point39°
Sun, 2258° / 40°0.07Light rain
58 °Light rain

Jamaica, Sunday, 22 November

Light rain. High 58°, low 40°.

Pressure30.06 inHg
Wind17.9 mph W
Humidity48%
Visibility—
Dew point31°
Mon, 2346° / 30°0Mostly clear
46 °Mostly clear

Jamaica, Monday, 23 November

Mostly clear. High 46°, low 30°.

Pressure30.18 inHg
Wind15.4 mph N
Humidity44%
Visibility—
Dew point24°
Tue, 2429° / 22°0.03Light snow
29 °Light snow

Jamaica, Tuesday, 24 November

Light snow. High 29°, low 22°.

Pressure30.24 inHg
Wind17.3 mph NW
Humidity37%
Visibility—
Dew point4°
Wed, 2530° / 18°0Clear
30 °Clear

Jamaica, Wednesday, 25 November

Clear. High 30°, low 18°.

Pressure30.15 inHg
Wind14.9 mph NW
Humidity34%
Visibility—
Dew point3°
Thu, 2635° / 18°0Clear
35 °Clear

Jamaica, Thursday, 26 November

Clear. High 35°, low 18°.

Pressure30.18 inHg
Wind16.3 mph SW
Humidity32%
Visibility—
Dew point5°
Fri, 2739° / 28°0Clear
39 °Clear

Jamaica, Friday, 27 November

Clear. High 39°, low 28°.

Pressure29.94 inHg
Wind16.2 mph SW
Humidity44%
Visibility—
Dew point18°
Sat, 2840° / 22°0Clear
40 °Clear

Jamaica, Saturday, 28 November

Clear. High 40°, low 22°.

Pressure30.15 inHg
Wind6.9 mph W
Humidity27%
Visibility—
Dew point4°

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.