As of 07:20 CST

Weather in Jamaica, IL

57°Current weather

Jamaica, Sunday, 1 November, 07:20

Light rain. Feels like 56°. High 69°, low 55°.

Pressure30.30 inHg
Wind5.2 mph E
Humidity78%
Visibility6.2 mi
Dew point50°
Mon, 0268° / 57°0.02Light rain
68 °Light rain

Jamaica, Monday, 2 November

Light rain. High 68°, low 57°.

Pressure30.09 inHg
Wind12.1 mph S
Humidity78%
Visibility6.2 mi
Dew point56°
Tue, 0376° / 63°0.15Rain
76 °Rain

Jamaica, Tuesday, 3 November

Rain. High 76°, low 63°.

Pressure29.88 inHg
Wind20.8 mph S
Humidity61%
Visibility6.2 mi
Dew point61°
Wed, 0465° / 57°0.21Rain
65 °Rain

Jamaica, Wednesday, 4 November

Rain. High 65°, low 57°.

Pressure29.74 inHg
Wind15.3 mph SW
Humidity54%
Visibility6.2 mi
Dew point45°
Thu, 0557° / 52°0.02Light rain
57 °Light rain

Jamaica, Thursday, 5 November

Light rain. High 57°, low 52°.

Pressure29.80 inHg
Wind12.8 mph W
Humidity65%
Visibility—
Dew point44°
Fri, 0656° / 50°0.06Light rain
56 °Light rain

Jamaica, Friday, 6 November

Light rain. High 56°, low 50°.

Pressure30.03 inHg
Wind14.9 mph N
Humidity68%
Visibility—
Dew point45°
Sat, 0756° / 50°0Overcast
56 °Overcast

Jamaica, Saturday, 7 November

Overcast. High 56°, low 50°.

Pressure29.74 inHg
Wind11.3 mph NW
Humidity65%
Visibility—
Dew point42°
Sun, 0857° / 48°0Partly cloudy
57 °Partly cloudy

Jamaica, Sunday, 8 November

Partly cloudy. High 57°, low 48°.

Pressure29.80 inHg
Wind15.6 mph NW
Humidity44%
Visibility—
Dew point33°
Mon, 0959° / 44°0Clear
59 °Clear

Jamaica, Monday, 9 November

Clear. High 59°, low 44°.

Pressure29.88 inHg
Wind11.2 mph NW
Humidity39%
Visibility—
Dew point31°
Tue, 1063° / 45°0Overcast
63 °Overcast

Jamaica, Tuesday, 10 November

Overcast. High 63°, low 45°.

Pressure30.03 inHg
Wind9.9 mph W
Humidity31%
Visibility—
Dew point29°
Wed, 1160° / 43°0.01Light rain
60 °Light rain

Jamaica, Wednesday, 11 November

Light rain. High 60°, low 43°.

Pressure30.12 inHg
Wind8.7 mph E
Humidity33%
Visibility—
Dew point28°
Thu, 1250° / 44°0.33Rain
50 °Rain

Jamaica, Thursday, 12 November

Rain. High 50°, low 44°.

Pressure29.83 inHg
Wind14 mph N
Humidity82%
Visibility—
Dew point43°
Fri, 1347° / 42°0Light rain
47 °Light rain

Jamaica, Friday, 13 November

Light rain. High 47°, low 42°.

Pressure30.06 inHg
Wind11 mph N
Humidity65%
Visibility—
Dew point35°
Sat, 1451° / 38°0Clear
51 °Clear

Jamaica, Saturday, 14 November

Clear. High 51°, low 38°.

Pressure30.18 inHg
Wind7.4 mph SE
Humidity51%
Visibility—
Dew point31°
Sun, 1559° / 40°0Overcast
59 °Overcast

Jamaica, Sunday, 15 November

Overcast. High 59°, low 40°.

Pressure29.94 inHg
Wind16.6 mph S
Humidity49%
Visibility—
Dew point36°
Mon, 1667° / 50°0Clear
67 °Clear

Jamaica, Monday, 16 November

Clear. High 67°, low 50°.

Pressure29.91 inHg
Wind6.5 mph SW
Humidity53%
Visibility—
Dew point46°

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.