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As of 22:23 CDT

Weather in Jamaica, IL

61°Current weather

Jamaica, Wednesday, 28 October, 22:23

Clear. Feels like 61°. High 76°, low 50°.

Pressure30.12 inHg
Wind7.7 mph S
Humidity71%
Visibility6.2 mi
Dew point51°
Thu, 2976° / 55°0Partly cloudy
76 °Partly cloudy

Jamaica, Thursday, 29 October

Partly cloudy. High 76°, low 55°.

Pressure30.12 inHg
Wind10.4 mph SW
Humidity51%
Visibility6.2 mi
Dew point53°
Fri, 3070° / 49°0Overcast
70 °Overcast

Jamaica, Friday, 30 October

Overcast. High 70°, low 49°.

Pressure30.33 inHg
Wind6.8 mph E
Humidity49%
Visibility6.2 mi
Dew point45°
Sat, 3166° / 54°0Overcast
66 °Overcast

Jamaica, Saturday, 31 October

Overcast. High 66°, low 54°.

Pressure30.33 inHg
Wind3.2 mph SE
Humidity51%
Visibility6.2 mi
Dew point44°
Sun, 0168° / 56°0Overcast
68 °Overcast

Jamaica, Sunday, 1 November

Overcast. High 68°, low 56°.

Pressure30.27 inHg
Wind7.9 mph SE
Humidity67%
Visibility6.2 mi
Dew point54°
Mon, 0264° / 54°0.04Light rain
64 °Light rain

Jamaica, Monday, 2 November

Light rain. High 64°, low 54°.

Pressure30.12 inHg
Wind15.5 mph S
Humidity77%
Visibility—
Dew point55°
Tue, 0365° / 62°0.33Rain
65 °Rain

Jamaica, Tuesday, 3 November

Rain. High 65°, low 62°.

Pressure29.91 inHg
Wind17.5 mph SW
Humidity84%
Visibility—
Dew point59°
Wed, 0469° / 64°0.47Rain
69 °Rain

Jamaica, Wednesday, 4 November

Rain. High 69°, low 64°.

Pressure29.74 inHg
Wind15.3 mph SE
Humidity74%
Visibility—
Dew point60°
Thu, 0567° / 58°0.2Rain
67 °Rain

Jamaica, Thursday, 5 November

Rain. High 67°, low 58°.

Pressure29.62 inHg
Wind11.8 mph S
Humidity60%
Visibility—
Dew point51°
Fri, 0658° / 46°0.11Light rain
58 °Light rain

Jamaica, Friday, 6 November

Light rain. High 58°, low 46°.

Pressure29.80 inHg
Wind16.5 mph N
Humidity82%
Visibility—
Dew point48°
Sat, 0753° / 41°0Clear
53 °Clear

Jamaica, Saturday, 7 November

Clear. High 53°, low 41°.

Pressure30.18 inHg
Wind14.4 mph N
Humidity50%
Visibility—
Dew point33°
Sun, 0851° / 38°0Overcast
51 °Overcast

Jamaica, Sunday, 8 November

Overcast. High 51°, low 38°.

Pressure30.21 inHg
Wind4.8 mph NE
Humidity47%
Visibility—
Dew point28°
Mon, 0955° / 40°0Overcast
55 °Overcast

Jamaica, Monday, 9 November

Overcast. High 55°, low 40°.

Pressure30.00 inHg
Wind16.1 mph S
Humidity53%
Visibility—
Dew point33°
Tue, 1052° / 42°0.06Light rain
52 °Light rain

Jamaica, Tuesday, 10 November

Light rain. High 52°, low 42°.

Pressure29.68 inHg
Wind20.5 mph W
Humidity83%
Visibility—
Dew point40°
Wed, 1151° / 38°0Overcast
51 °Overcast

Jamaica, Wednesday, 11 November

Overcast. High 51°, low 38°.

Pressure29.77 inHg
Wind14.6 mph W
Humidity41%
Visibility—
Dew point26°
Thu, 1248° / 38°0Clear
48 °Clear

Jamaica, Thursday, 12 November

Clear. High 48°, low 38°.

Pressure29.85 inHg
Wind13.8 mph W
Humidity46%
Visibility—
Dew point27°

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.