Monthly outlook for Jamaica, IA: average high 54.9°, average low 40°. That is 3.5° above the climate normal for November. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 9 November (67.4°), the coolest 13 November (30.2°).
54.9°/40°
Average high / low
+3.5°
Above normal
2 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
52.5°
49.4°
+1.7°
15 November – 24 November
58.9°
45.7°
+7.4°
25 November – 4 December
at normal
38.9°
—
November records over 66 years
76.3°8 November 1999All-time high
-8.5°7 November 1991All-time low
Climate normals and records are computed from the nearest reference point — Jefferson (12 mi).
Fri, 0648° / 37°0
48 °
Jamaica, Friday, 6 November
Clear. High 48°, low 37°.
Pressure30.30 inHg
Wind3.8 mph N
Humidity56%
Visibility6.2 mi
Dew point33°
Sat, 0757° / 35°0
57 °
Jamaica, Saturday, 7 November
Clear. High 57°, low 35°.
Pressure30.21 inHg
Wind7.9 mph SW
Humidity55%
Visibility6.2 mi
Dew point38°
Sun, 0860° / 43°0
60 °
Jamaica, Sunday, 8 November
Clear. High 60°, low 43°.
Pressure30.18 inHg
Wind5.6 mph NW
Humidity48%
Visibility6.2 mi
Dew point39°
Mon, 0967° / 38°0
67 °
Jamaica, Monday, 9 November
Mostly clear. High 67°, low 38°.
Pressure30.03 inHg
Wind10.2 mph SW
Humidity57%
Visibility—
Dew point46°
Tue, 1058° / 42°0
58 °
Jamaica, Tuesday, 10 November
Overcast. High 58°, low 42°.
Pressure30.12 inHg
Wind7.6 mph NW
Humidity50%
Visibility—
Dew point35°
Wed, 1148° / 39°0
48 °
Jamaica, Wednesday, 11 November
Overcast. High 48°, low 39°.
Pressure30.27 inHg
Wind13.3 mph N
Humidity51%
Visibility—
Dew point29°
Thu, 1243° / 35°0
43 °
Jamaica, Thursday, 12 November
Overcast. High 43°, low 35°.
Pressure30.36 inHg
Wind10.3 mph N
Humidity53%
Visibility—
Dew point24°
Fri, 1344° / 30°0
44 °
Jamaica, Friday, 13 November
Clear. High 44°, low 30°.
Pressure30.33 inHg
Wind5.3 mph SW
Humidity39%
Visibility—
Dew point17°
Sat, 1451° / 32°0
51 °
Jamaica, Saturday, 14 November
Clear. High 51°, low 32°.
Pressure30.21 inHg
Wind7.6 mph SW
Humidity44%
Visibility—
Dew point25°
Sun, 1553° / 35°0
53 °
Jamaica, Sunday, 15 November
Clear. High 53°, low 35°.
Pressure30.21 inHg
Wind11.8 mph SW
Humidity40%
Visibility—
Dew point26°
Mon, 1657° / 39°0
57 °
Jamaica, Monday, 16 November
Partly cloudy. High 57°, low 39°.
Pressure30.06 inHg
Wind11.8 mph SW
Humidity53%
Visibility—
Dew point36°
Tue, 1763° / 44°0
63 °
Jamaica, Tuesday, 17 November
Clear. High 63°, low 44°.
Pressure30.00 inHg
Wind13.3 mph S
Humidity54%
Visibility—
Dew point42°
Wed, 1861° / 49°0
61 °
Jamaica, Wednesday, 18 November
Overcast. High 61°, low 49°.
Pressure29.85 inHg
Wind16.9 mph SW
Humidity49%
Visibility—
Dew point38°
Thu, 1959° / 50°0.04
59 °
Jamaica, Thursday, 19 November
Light rain. High 59°, low 50°.
Pressure29.80 inHg
Wind15.3 mph S
Humidity78%
Visibility—
Dew point50°
Fri, 2061° / 47°0.08
61 °
Jamaica, Friday, 20 November
Light rain. High 61°, low 47°.
Pressure30.00 inHg
Wind10.1 mph E
Humidity66%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2144° / 28°0.03
44 °
Jamaica, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.03 in
Chance of precipitation12%
Record high72° (1990)
Record low6° (1964)
Sun, 2244° / 28°0.02
44 °
Jamaica, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1966)
Record low7° (2015)
Mon, 2343° / 28°0.06
43 °
Jamaica, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.06 in
Chance of precipitation23%
Record high58° (2025)
Record low7° (1985)
Tue, 2443° / 28°0.05
43 °
Jamaica, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.05 in
Chance of precipitation18%
Record high64° (2017)
Record low1° (1985)
Wed, 2542° / 27°0.02
42 °
Jamaica, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.02 in
Chance of precipitation18%
Record high63° (1960)
Record low-8° (1991)
Thu, 2641° / 27°0.07
41 °
Jamaica, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation25%
Record high65° (1990)
Record low2° (1996)
Fri, 2739° / 25°0.08
39 °
Jamaica, Friday, 27 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.08 in
Chance of precipitation28%
Record high64° (1998)
Record low3° (2014)
Sat, 2838° / 23°0.08
38 °
Jamaica, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high38°
Average low23°
Average precipitation0.08 in
Chance of precipitation17%
Record high65° (1998)
Record low4° (1977)
Sun, 2939° / 25°0.09
39 °
Jamaica, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (1998)
Record low3° (1985)
Mon, 3039° / 24°0.04
39 °
Jamaica, Monday, 30 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high61° (1998)
Record low0° (1964)
Tue, 0138° / 25°0.07
38 °
Jamaica, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.07 in
Chance of precipitation22%
Record high64° (1998)
Record low3° (1985)
Wed, 0239° / 24°0.04
39 °
Jamaica, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high64° (1982)
Record low-9° (1985)
Thu, 0337° / 22°0.06
37 °
Jamaica, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.06 in
Chance of precipitation18%
Record high64° (2012)
Record low-14° (1985)
Fri, 0437° / 22°0.03
37 °
Jamaica, Friday, 4 December
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.03 in
Chance of precipitation12%
Record high67° (2017)
Record low-8° (2025)
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, IA 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, IA 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.