Monthly outlook for New Boston, IL: average high 48.5°, average low 34.2°. That is 1.2° above the climate normal for November. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 21 November (64.5°), the coolest 27 November (26°).
48.5°/34.2°
Average high / low
+1.2°
Above normal
4 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
53°
48.1°
+2.7°
24 November – 3 December
41°
42.3°
-0.7°
4 December – 13 December
at normal
37.1°
—
November records over 66 years
77.2°8 November 1999All-time high
3.4°8 November 1991All-time low
Climate normals and records are computed from the nearest reference point — Mediapolis (14 mi).
Sun, 1548° / 30°0
48 °
New Boston, Sunday, 15 November
Clear. High 48°, low 30°.
Pressure30.47 inHg
Wind1.6 mph SW
Humidity57%
Visibility6.2 mi
Dew point29°
Mon, 1652° / 32°0
52 °
New Boston, Monday, 16 November
Mostly clear. High 52°, low 32°.
Pressure30.53 inHg
Wind5.8 mph SW
Humidity50%
Visibility6.2 mi
Dew point33°
Tue, 1755° / 34°0
55 °
New Boston, Tuesday, 17 November
Partly cloudy. High 55°, low 34°.
Pressure30.45 inHg
Wind7.9 mph S
Humidity54%
Visibility6.2 mi
Dew point37°
Wed, 1858° / 40°0
58 °
New Boston, Wednesday, 18 November
Overcast. High 58°, low 40°.
Pressure30.27 inHg
Wind12.4 mph S
Humidity55%
Visibility—
Dew point37°
Thu, 1959° / 48°0.15
59 °
New Boston, Thursday, 19 November
Rain. High 59°, low 48°.
Pressure30.18 inHg
Wind12.3 mph S
Humidity68%
Visibility—
Dew point46°
Fri, 2060° / 43°0.05
60 °
New Boston, Friday, 20 November
Light rain. High 60°, low 43°.
Pressure30.18 inHg
Wind14.4 mph SE
Humidity69%
Visibility—
Dew point44°
Sat, 2164° / 48°0.41
64 °
New Boston, Saturday, 21 November
Rain. High 64°, low 48°.
Pressure29.77 inHg
Wind23.9 mph W
Humidity60%
Visibility—
Dew point49°
Sun, 2247° / 37°0
47 °
New Boston, Sunday, 22 November
Overcast. High 47°, low 37°.
Pressure30.24 inHg
Wind21.9 mph W
Humidity68%
Visibility—
Dew point33°
Mon, 2341° / 30°0
41 °
New Boston, Monday, 23 November
Mostly clear. High 41°, low 30°.
Pressure30.39 inHg
Wind7.9 mph N
Humidity43%
Visibility—
Dew point18°
Tue, 2444° / 29°0
44 °
New Boston, Tuesday, 24 November
Partly cloudy. High 44°, low 29°.
Pressure30.27 inHg
Wind5.5 mph S
Humidity53%
Visibility—
Dew point24°
Wed, 2541° / 31°0.04
41 °
New Boston, Wednesday, 25 November
Light rain. High 41°, low 31°.
Pressure30.24 inHg
Wind11.9 mph NW
Humidity69%
Visibility—
Dew point30°
Thu, 2638° / 27°0
38 °
New Boston, Thursday, 26 November
Clear. High 38°, low 27°.
Pressure30.53 inHg
Wind9.9 mph N
Humidity47%
Visibility—
Dew point17°
Fri, 2740° / 26°0
40 °
New Boston, Friday, 27 November
Overcast. High 40°, low 26°.
Pressure30.27 inHg
Wind7 mph NE
Humidity43%
Visibility—
Dew point16°
Sat, 2842° / 30°0
42 °
New Boston, Saturday, 28 November
Overcast. High 42°, low 30°.
Pressure29.97 inHg
Wind8.5 mph NE
Humidity55%
Visibility—
Dew point25°
Sun, 2942° / 36°0.01
42 °
New Boston, Sunday, 29 November
Light rain. High 42°, low 36°.
Pressure30.09 inHg
Wind6.1 mph NW
Humidity70%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3042° / 28°0.09
42 °
New Boston, Monday, 30 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.09 in
Chance of precipitation20%
Record high66° (1998)
Record low7° (1964)
Tue, 0140° / 27°0.11
40 °
New Boston, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.11 in
Chance of precipitation35%
Record high61° (1970)
Record low6° (1985)
Wed, 0241° / 27°0.05
41 °
New Boston, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1982)
Record low-2° (1985)
Thu, 0340° / 26°0.08
40 °
New Boston, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.08 in
Chance of precipitation25%
Record high69° (2012)
Record low-7° (1985)
Fri, 0439° / 26°0.04
39 °
New Boston, Friday, 4 December
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (1998)
Record low-2° (1991)
Sat, 0540° / 25°0.07
40 °
New Boston, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (2001)
Record low1° (2008)
Sun, 0637° / 24°0.06
37 °
New Boston, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.06 in
Chance of precipitation28%
Record high59° (1980)
Record low-3° (1964)
Mon, 0736° / 23°0.08
36 °
New Boston, Monday, 7 December
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.08 in
Chance of precipitation23%
Record high58° (2023)
Record low-9° (2005)
Tue, 0837° / 24°0.06
37 °
New Boston, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.06 in
Chance of precipitation27%
Record high63° (1991)
Record low-2° (2006)
Wed, 0937° / 23°0.08
37 °
New Boston, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation33%
Record high54° (1965)
Record low-8° (1977)
Thu, 1036° / 22°0.09
36 °
New Boston, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.09 in
Chance of precipitation25%
Record high58° (2015)
Record low-13° (1977)
Fri, 1136° / 21°0.09
36 °
New Boston, Friday, 11 December
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.09 in
Chance of precipitation28%
Record high58° (1965)
Record low-13° (1972)
Sat, 1236° / 23°0.05
36 °
New Boston, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.05 in
Chance of precipitation18%
Record high60° (2015)
Record low-11° (2000)
Sun, 1337° / 23°0.08
37 °
New Boston, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation30%
Record high61° (2015)
Record low-16° (2000)
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 New Boston, 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 New Boston, 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.