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As of 16:14 CDT

Weather in Jamaica, IL

71°Current weather

Jamaica, Tuesday, 27 October, 16:14

Overcast. Feels like 70°. High 71°, low 48°.

Pressure30.18 inHg
Wind7.6 mph S
Humidity49%
Visibility6.2 mi
Dew point51°
Wed, 2875° / 48°0Clear
75 °Clear

Jamaica, Wednesday, 28 October

Clear. High 75°, low 48°.

Pressure30.24 inHg
Wind7.7 mph S
Humidity49%
Visibility6.2 mi
Dew point51°
Thu, 2975° / 50°0.05Light rain
75 °Light rain

Jamaica, Thursday, 29 October

Light rain. High 75°, low 50°.

Pressure30.15 inHg
Wind10.4 mph SW
Humidity53%
Visibility6.2 mi
Dew point54°
Fri, 3071° / 51°0Partly cloudy
71 °Partly cloudy

Jamaica, Friday, 30 October

Partly cloudy. High 71°, low 51°.

Pressure30.30 inHg
Wind6.1 mph E
Humidity57%
Visibility6.2 mi
Dew point51°
Sat, 3164° / 53°0.62Rain
64 °Rain

Jamaica, Saturday, 31 October

Rain. High 64°, low 53°.

Pressure30.27 inHg
Wind5.5 mph S
Humidity81%
Visibility6.2 mi
Dew point54°
Sun, 0171° / 50°0.01Light rain
71 °Light rain

Jamaica, Sunday, 1 November

Light rain. High 71°, low 50°.

Pressure30.21 inHg
Wind7.4 mph SE
Humidity57%
Visibility—
Dew point52°
Mon, 0269° / 57°0Overcast
69 °Overcast

Jamaica, Monday, 2 November

Overcast. High 69°, low 57°.

Pressure29.91 inHg
Wind6.7 mph S
Humidity69%
Visibility—
Dew point53°
Tue, 0368° / 59°0.42Rain
68 °Rain

Jamaica, Tuesday, 3 November

Rain. High 68°, low 59°.

Pressure29.77 inHg
Wind17.3 mph SE
Humidity89%
Visibility—
Dew point57°
Wed, 0464° / 51°0.8Heavy rain
64 °Heavy rain

Jamaica, Wednesday, 4 November

Heavy rain. High 64°, low 51°.

Pressure29.74 inHg
Wind17.1 mph SE
Humidity78%
Visibility—
Dew point50°
Thu, 0553° / 49°0.46Rain
53 °Rain

Jamaica, Thursday, 5 November

Rain. High 53°, low 49°.

Pressure29.62 inHg
Wind10.1 mph W
Humidity92%
Visibility—
Dew point49°
Fri, 0656° / 51°0.01Light rain
56 °Light rain

Jamaica, Friday, 6 November

Light rain. High 56°, low 51°.

Pressure29.74 inHg
Wind11.8 mph N
Humidity90%
Visibility—
Dew point53°
Sat, 0754° / 43°0.04Light rain
54 °Light rain

Jamaica, Saturday, 7 November

Light rain. High 54°, low 43°.

Pressure30.15 inHg
Wind12.3 mph NE
Humidity61%
Visibility—
Dew point40°
Sun, 0852° / 37°0Clear
52 °Clear

Jamaica, Sunday, 8 November

Clear. High 52°, low 37°.

Pressure30.27 inHg
Wind10.5 mph NE
Humidity41%
Visibility—
Dew point26°
Mon, 0953° / 35°0Partly cloudy
53 °Partly cloudy

Jamaica, Monday, 9 November

Partly cloudy. High 53°, low 35°.

Pressure30.21 inHg
Wind11.3 mph NE
Humidity39%
Visibility—
Dew point26°
Tue, 1054° / 40°0Overcast
54 °Overcast

Jamaica, Tuesday, 10 November

Overcast. High 54°, low 40°.

Pressure30.24 inHg
Wind10.1 mph NE
Humidity39%
Visibility—
Dew point28°
Wed, 1156° / 43°0Overcast
56 °Overcast

Jamaica, Wednesday, 11 November

Overcast. High 56°, low 43°.

Pressure30.06 inHg
Wind6.2 mph NE
Humidity45%
Visibility—
Dew point32°

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.