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As of 11:08 CST

Weather in Jamaica, IL

57°Current weather

Jamaica, Monday, 2 November, 11:08

Overcast. Feels like 56°. High 64°, low 55°.

Pressure30.12 inHg
Wind11.6 mph S
Humidity92%
Visibility6.2 mi
Dew point55°
Tue, 0376° / 63°0Mostly clear
76 °Mostly clear

Jamaica, Tuesday, 3 November

Mostly clear. High 76°, low 63°.

Pressure29.91 inHg
Wind17.4 mph S
Humidity62%
Visibility6.2 mi
Dew point60°
Wed, 0465° / 52°0.36Rain
65 °Rain

Jamaica, Wednesday, 4 November

Rain. High 65°, low 52°.

Pressure29.77 inHg
Wind14.6 mph SW
Humidity65%
Visibility6.2 mi
Dew point51°
Thu, 0564° / 49°0Clear
64 °Clear

Jamaica, Thursday, 5 November

Clear. High 64°, low 49°.

Pressure29.80 inHg
Wind14.6 mph SW
Humidity40%
Visibility6.2 mi
Dew point39°
Fri, 0655° / 48°0Light rain
55 °Light rain

Jamaica, Friday, 6 November

Light rain. High 55°, low 48°.

Pressure29.88 inHg
Wind9.2 mph NW
Humidity66%
Visibility—
Dew point43°
Sat, 0757° / 50°0Overcast
57 °Overcast

Jamaica, Saturday, 7 November

Overcast. High 57°, low 50°.

Pressure30.00 inHg
Wind6.8 mph W
Humidity73%
Visibility—
Dew point45°
Sun, 0849° / 43°0.17Light rain
49 °Light rain

Jamaica, Sunday, 8 November

Light rain. High 49°, low 43°.

Pressure29.68 inHg
Wind14 mph N
Humidity75%
Visibility—
Dew point41°
Mon, 0951° / 35°0Partly cloudy
51 °Partly cloudy

Jamaica, Monday, 9 November

Partly cloudy. High 51°, low 35°.

Pressure30.03 inHg
Wind11.4 mph NW
Humidity48%
Visibility—
Dew point29°
Tue, 1055° / 40°0Clear
55 °Clear

Jamaica, Tuesday, 10 November

Clear. High 55°, low 40°.

Pressure30.06 inHg
Wind13.1 mph NW
Humidity47%
Visibility—
Dew point33°
Wed, 1150° / 41°0.26Light rain
50 °Light rain

Jamaica, Wednesday, 11 November

Light rain. High 50°, low 41°.

Pressure30.00 inHg
Wind12.6 mph S
Humidity77%
Visibility—
Dew point40°
Thu, 1249° / 38°0Overcast
49 °Overcast

Jamaica, Thursday, 12 November

Overcast. High 49°, low 38°.

Pressure30.09 inHg
Wind11.4 mph N
Humidity57%
Visibility—
Dew point32°
Fri, 1349° / 35°0Partly cloudy
49 °Partly cloudy

Jamaica, Friday, 13 November

Partly cloudy. High 49°, low 35°.

Pressure30.18 inHg
Wind6.5 mph NW
Humidity45%
Visibility—
Dew point26°
Sat, 1450° / 33°0Partly cloudy
50 °Partly cloudy

Jamaica, Saturday, 14 November

Partly cloudy. High 50°, low 33°.

Pressure30.15 inHg
Wind10.2 mph SE
Humidity37%
Visibility—
Dew point22°
Sun, 1550° / 40°0.47Rain
50 °Rain

Jamaica, Sunday, 15 November

Rain. High 50°, low 40°.

Pressure29.83 inHg
Wind15.3 mph E
Humidity51%
Visibility—
Dew point31°
Mon, 1650° / 45°0.07Light rain
50 °Light rain

Jamaica, Monday, 16 November

Light rain. High 50°, low 45°.

Pressure29.88 inHg
Wind11 mph N
Humidity85%
Visibility—
Dew point45°
Tue, 1750° / 43°0Overcast
50 °Overcast

Jamaica, Tuesday, 17 November

Overcast. High 50°, low 43°.

Pressure29.88 inHg
Wind12.5 mph NW
Humidity67%
Visibility—
Dew point38°

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.