Monthly outlook for Colvin Park, IL: average high 45.5°, average low 31.7°. That is 0.6° above the climate normal for November. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 November (62.8°), the coolest 24 November (17.9°).
45.5°/31.7°
Average high / low
+0.6°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
52.1°
45.9°
+3.4°
23 November – 2 December
34.7°
40.7°
-3.4°
3 December – 12 December
at normal
35.3°
—
November records over 66 years
74.5°2 November 1961All-time high
-0.2°26 November 1977All-time low
Climate normals and records are computed from the nearest reference point — Sycamore (11 mi).
Sat, 1446° / 30°0
46 °
Colvin Park, Saturday, 14 November
Clear. High 46°, low 30°.
Pressure30.30 inHg
Wind7.6 mph NW
Humidity64%
Visibility6.2 mi
Dew point29°
Sun, 1547° / 30°0
47 °
Colvin Park, Sunday, 15 November
Clear. High 47°, low 30°.
Pressure30.47 inHg
Wind2 mph NW
Humidity61%
Visibility6.2 mi
Dew point32°
Mon, 1649° / 29°0
49 °
Colvin Park, Monday, 16 November
Clear. High 49°, low 29°.
Pressure30.50 inHg
Wind8 mph SW
Humidity53%
Visibility6.2 mi
Dew point32°
Tue, 1753° / 33°0
53 °
Colvin Park, Tuesday, 17 November
Clear. High 53°, low 33°.
Pressure30.45 inHg
Wind8.4 mph SW
Humidity55%
Visibility6.2 mi
Dew point36°
Wed, 1855° / 37°0
55 °
Colvin Park, Wednesday, 18 November
Overcast. High 55°, low 37°.
Pressure30.30 inHg
Wind12.3 mph S
Humidity58%
Visibility—
Dew point36°
Thu, 1957° / 49°0.02
57 °
Colvin Park, Thursday, 19 November
Light rain. High 57°, low 49°.
Pressure30.21 inHg
Wind13.9 mph SW
Humidity69%
Visibility—
Dew point46°
Fri, 2057° / 43°0
57 °
Colvin Park, Friday, 20 November
Overcast. High 57°, low 43°.
Pressure30.27 inHg
Wind14.7 mph S
Humidity78%
Visibility—
Dew point46°
Sat, 2163° / 55°0.21
63 °
Colvin Park, Saturday, 21 November
Rain. High 63°, low 55°.
Pressure29.85 inHg
Wind19.4 mph S
Humidity53%
Visibility—
Dew point44°
Sun, 2253° / 25°0.18
53 °
Colvin Park, Sunday, 22 November
Snow. High 53°, low 25°.
Pressure30.00 inHg
Wind24.7 mph N
Humidity69%
Visibility—
Dew point22°
Mon, 2327° / 19°0.01
27 °
Colvin Park, Monday, 23 November
Light snow. High 27°, low 19°.
Pressure30.18 inHg
Wind15.4 mph NW
Humidity51%
Visibility—
Dew point10°
Tue, 2428° / 18°0
28 °
Colvin Park, Tuesday, 24 November
Clear. High 28°, low 18°.
Pressure30.30 inHg
Wind12.9 mph NW
Humidity54%
Visibility—
Dew point12°
Wed, 2534° / 23°0
34 °
Colvin Park, Wednesday, 25 November
Overcast. High 34°, low 23°.
Pressure30.06 inHg
Wind17.4 mph SW
Humidity38%
Visibility—
Dew point8°
Thu, 2633° / 26°0
33 °
Colvin Park, Thursday, 26 November
Overcast. High 33°, low 26°.
Pressure30.18 inHg
Wind9.8 mph W
Humidity61%
Visibility—
Dew point19°
Fri, 2738° / 27°0.41
38 °
Colvin Park, Friday, 27 November
Rain. High 38°, low 27°.
Pressure30.24 inHg
Wind19.6 mph SE
Humidity59%
Visibility—
Dew point23°
Sat, 2848° / 34°0.3
48 °
Colvin Park, Saturday, 28 November
Snow. High 48°, low 34°.
Pressure29.41 inHg
Wind21.8 mph W
Humidity91%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2940° / 27°0.06
40 °
Colvin Park, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.06 in
Chance of precipitation32%
Record high65° (1998)
Record low5° (1976)
Mon, 3040° / 27°0.07
40 °
Colvin Park, Monday, 30 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation27%
Record high65° (1998)
Record low8° (1978)
Tue, 0137° / 26°0.12
37 °
Colvin Park, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.12 in
Chance of precipitation38%
Record high62° (1970)
Record low5° (1971)
Wed, 0238° / 25°0.06
38 °
Colvin Park, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (1982)
Record low1° (1971)
Thu, 0338° / 26°0.08
38 °
Colvin Park, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.08 in
Chance of precipitation33%
Record high68° (2012)
Record low2° (1985)
Fri, 0437° / 25°0.06
37 °
Colvin Park, Friday, 4 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.06 in
Chance of precipitation20%
Record high64° (1998)
Record low-5° (1991)
Sat, 0538° / 24°0.07
38 °
Colvin Park, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.07 in
Chance of precipitation33%
Record high66° (2001)
Record low-5° (1991)
Sun, 0636° / 22°0.06
36 °
Colvin Park, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.06 in
Chance of precipitation22%
Record high61° (1998)
Record low-4° (1964)
Mon, 0734° / 22°0.11
34 °
Colvin Park, Monday, 7 December
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.11 in
Chance of precipitation27%
Record high56° (1980)
Record low-6° (2005)
Tue, 0835° / 23°0.07
35 °
Colvin Park, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.07 in
Chance of precipitation28%
Record high60° (1991)
Record low-1° (2006)
Wed, 0935° / 21°0.08
35 °
Colvin Park, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.08 in
Chance of precipitation42%
Record high52° (1987)
Record low-8° (1978)
Thu, 1034° / 21°0.08
34 °
Colvin Park, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high34°
Average low21°
Average precipitation0.08 in
Chance of precipitation25%
Record high57° (2015)
Record low-12° (1978)
Fri, 1133° / 20°0.11
33 °
Colvin Park, Friday, 11 December
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.11 in
Chance of precipitation33%
Record high55° (1965)
Record low-18° (1972)
Sat, 1235° / 20°0.07
35 °
Colvin Park, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.07 in
Chance of precipitation23%
Record high59° (2015)
Record low-8° (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 Colvin Park, 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 Colvin Park, 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.