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As of 22:43 CST

Weather in Jamaica, IL

44°Current weather

Jamaica, Tuesday, 10 November, 22:43

Clear. Feels like 44°. High 68°, low 44°.

Pressure30.03 inHg
Wind2 mph NE
Humidity81%
Visibility6.2 mi
Dew point38°
Wed, 1167° / 40°0.07Light rain
67 °Light rain

Jamaica, Wednesday, 11 November

Light rain. High 67°, low 40°.

Pressure29.74 inHg
Wind11 mph S
Humidity51%
Visibility6.2 mi
Dew point49°
Thu, 1250° / 39°0Mostly clear
50 °Mostly clear

Jamaica, Thursday, 12 November

Mostly clear. High 50°, low 39°.

Pressure29.91 inHg
Wind14.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point29°
Fri, 1343° / 33°0Overcast
43 °Overcast

Jamaica, Friday, 13 November

Overcast. High 43°, low 33°.

Pressure30.03 inHg
Wind13.7 mph NW
Humidity70%
Visibility6.2 mi
Dew point28°
Sat, 1444° / 29°0Clear
44 °Clear

Jamaica, Saturday, 14 November

Clear. High 44°, low 29°.

Pressure30.24 inHg
Wind7.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point24°
Sun, 1549° / 28°0Clear
49 °Clear

Jamaica, Sunday, 15 November

Clear. High 49°, low 28°.

Pressure30.39 inHg
Wind2.3 mph NW
Humidity53%
Visibility—
Dew point29°
Mon, 1650° / 30°0Clear
50 °Clear

Jamaica, Monday, 16 November

Clear. High 50°, low 30°.

Pressure30.47 inHg
Wind6 mph E
Humidity51%
Visibility—
Dew point29°
Tue, 1751° / 34°0Clear
51 °Clear

Jamaica, Tuesday, 17 November

Clear. High 51°, low 34°.

Pressure30.39 inHg
Wind6.9 mph E
Humidity45%
Visibility—
Dew point27°
Wed, 1854° / 35°0Clear
54 °Clear

Jamaica, Wednesday, 18 November

Clear. High 54°, low 35°.

Pressure30.30 inHg
Wind8.8 mph SE
Humidity38%
Visibility—
Dew point25°
Thu, 1956° / 37°0Partly cloudy
56 °Partly cloudy

Jamaica, Thursday, 19 November

Partly cloudy. High 56°, low 37°.

Pressure30.12 inHg
Wind14.2 mph S
Humidity36%
Visibility—
Dew point26°
Fri, 2056° / 49°0.32Rain
56 °Rain

Jamaica, Friday, 20 November

Rain. High 56°, low 49°.

Pressure30.03 inHg
Wind13.2 mph S
Humidity72%
Visibility—
Dew point42°
Sat, 2155° / 48°0.39Rain
55 °Rain

Jamaica, Saturday, 21 November

Rain. High 55°, low 48°.

Pressure29.65 inHg
Wind17 mph SW
Humidity77%
Visibility—
Dew point47°
Sun, 2247° / 33°0.16Light rain
47 °Light rain

Jamaica, Sunday, 22 November

Light rain. High 47°, low 33°.

Pressure30.00 inHg
Wind16.6 mph NW
Humidity67%
Visibility—
Dew point29°
Mon, 2330° / 23°0.05Light snow
30 °Light snow

Jamaica, Monday, 23 November

Light snow. High 30°, low 23°.

Pressure30.15 inHg
Wind21.7 mph NW
Humidity45%
Visibility—
Dew point8°
Tue, 2433° / 18°0Clear
33 °Clear

Jamaica, Tuesday, 24 November

Clear. High 33°, low 18°.

Pressure30.39 inHg
Wind15.5 mph NW
Humidity33%
Visibility—
Dew point4°
Wed, 2545° / 27°0Overcast
45 °Overcast

Jamaica, Wednesday, 25 November

Overcast. High 45°, low 27°.

Pressure30.18 inHg
Wind14.8 mph SW
Humidity44%
Visibility—
Dew point19°

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.