Monthly outlook for Sunnyside, IL: average high 58.7°, average low 46.3°. That is 4.5° above the climate normal for October. Precipitation is expected on 7 days (about 2.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 29 October (69.2°), the coolest 7 November (33.4°).
58.7°/46.3°
Average high / low
+4.5°
Above normal
7 / 4
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
58.9°
52.5°
+3.5°
8 November – 17 November
58.3°
46.7°
+6.5°
18 November – 27 November
at normal
42.8°
—
October records over 66 years
86.4°3 October 2025All-time high
21.4°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Freeport (15 mi).
Fri, 3059° / 44°0.14
59 °
Sunnyside, Friday, 30 October
Rain. High 59°, low 44°.
Pressure30.36 inHg
Wind6 mph E
Humidity64%
Visibility6.2 mi
Dew point41°
Sat, 3158° / 50°0.28
58 °
Sunnyside, Saturday, 31 October
Rain. High 58°, low 50°.
Pressure30.33 inHg
Wind7.8 mph SE
Humidity78%
Visibility6.2 mi
Dew point49°
Sun, 0168° / 49°0
68 °
Sunnyside, Sunday, 1 November
Mostly clear. High 68°, low 49°.
Pressure30.30 inHg
Wind6.4 mph E
Humidity67%
Visibility6.2 mi
Dew point52°
Mon, 0260° / 57°0.13
60 °
Sunnyside, Monday, 2 November
Light rain. High 60°, low 57°.
Pressure30.03 inHg
Wind14.3 mph SE
Humidity87%
Visibility—
Dew point54°
Tue, 0365° / 59°0.7
65 °
Sunnyside, Tuesday, 3 November
Rain. High 65°, low 59°.
Pressure29.77 inHg
Wind16.8 mph S
Humidity96%
Visibility—
Dew point63°
Wed, 0466° / 46°0.13
66 °
Sunnyside, Wednesday, 4 November
Light rain. High 66°, low 46°.
Pressure29.53 inHg
Wind18.8 mph S
Humidity74%
Visibility—
Dew point56°
Thu, 0548° / 37°0
48 °
Sunnyside, Thursday, 5 November
Clear. High 48°, low 37°.
Pressure29.83 inHg
Wind16.7 mph NW
Humidity48%
Visibility—
Dew point28°
Fri, 0647° / 34°0
47 °
Sunnyside, Friday, 6 November
Clear. High 47°, low 34°.
Pressure29.97 inHg
Wind12.5 mph W
Humidity46%
Visibility—
Dew point25°
Sat, 0749° / 33°0
49 °
Sunnyside, Saturday, 7 November
Overcast. High 49°, low 33°.
Pressure30.18 inHg
Wind7.7 mph E
Humidity50%
Visibility—
Dew point28°
Sun, 0860° / 44°0.02
60 °
Sunnyside, Sunday, 8 November
Light rain. High 60°, low 44°.
Pressure30.06 inHg
Wind14.3 mph E
Humidity65%
Visibility—
Dew point44°
Mon, 0953° / 49°0.23
53 °
Sunnyside, Monday, 9 November
Light rain. High 53°, low 49°.
Pressure29.88 inHg
Wind13.6 mph E
Humidity91%
Visibility—
Dew point48°
Tue, 1053° / 47°0.02
53 °
Sunnyside, Tuesday, 10 November
Light rain. High 53°, low 47°.
Pressure30.09 inHg
Wind12 mph NE
Humidity81%
Visibility—
Dew point45°
Wed, 1156° / 49°0
56 °
Sunnyside, Wednesday, 11 November
Overcast. High 56°, low 49°.
Pressure30.03 inHg
Wind13.4 mph SW
Humidity68%
Visibility—
Dew point44°
Thu, 1263° / 47°0
63 °
Sunnyside, Thursday, 12 November
Overcast. High 63°, low 47°.
Pressure29.85 inHg
Wind14.4 mph SW
Humidity51%
Visibility—
Dew point41°
Fri, 1365° / 50°0
65 °
Sunnyside, Friday, 13 November
Mostly clear. High 65°, low 50°.
Pressure29.77 inHg
Wind9.5 mph S
Humidity60%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1446° / 32°0.06
46 °
Sunnyside, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high67° (2025)
Record low14° (1986)
Sun, 1546° / 33°0.07
46 °
Sunnyside, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (2025)
Record low9° (1995)
Mon, 1646° / 32°0.06
46 °
Sunnyside, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (1988)
Record low17° (2019)
Tue, 1746° / 33°0.11
46 °
Sunnyside, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation22%
Record high70° (2016)
Record low14° (2005)
Wed, 1846° / 33°0.08
46 °
Sunnyside, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation28%
Record high67° (1999)
Record low11° (2014)
Thu, 1946° / 32°0.05
46 °
Sunnyside, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1983)
Record low11° (1986)
Fri, 2044° / 32°0.09
44 °
Sunnyside, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation35%
Record high62° (1982)
Record low13° (2022)
Sat, 2143° / 29°0.09
43 °
Sunnyside, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.09 in
Chance of precipitation23%
Record high65° (1990)
Record low8° (1964)
Sun, 2243° / 29°0.04
43 °
Sunnyside, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.04 in
Chance of precipitation15%
Record high65° (2010)
Record low2° (2015)
Mon, 2343° / 30°0.09
43 °
Sunnyside, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation28%
Record high62° (1966)
Record low11° (1970)
Tue, 2441° / 29°0.07
41 °
Sunnyside, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.07 in
Chance of precipitation23%
Record high61° (1966)
Record low9° (1985)
Wed, 2542° / 29°0.07
42 °
Sunnyside, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation30%
Record high56° (1966)
Record low7° (1977)
Thu, 2642° / 28°0.11
42 °
Sunnyside, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.11 in
Chance of precipitation33%
Record high64° (1990)
Record low-3° (1977)
Fri, 2740° / 28°0.16
40 °
Sunnyside, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.16 in
Chance of precipitation50%
Record high64° (1990)
Record low8° (1993)
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 Sunnyside, 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 Sunnyside, 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.