Monthly outlook for Monaville, IL: average high 56.6°, average low 40.1°. That is 0.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 20 October (66.9°), the coolest 29 October (27.2°).
56.6°/40.1°
Average high / low
+0.8°
Above normal
4 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
60.8°
56.3°
+2.5°
29 October – 7 November
49.6°
52.3°
-1.5°
8 November – 17 November
at normal
46.7°
—
October records over 66 years
86.9°3 October 2025All-time high
26.1°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Round Lake Beach (2 mi).
Tue, 2067° / 44°0
67 °
Monaville, Tuesday, 20 October
Clear. High 67°, low 44°.
Pressure30.39 inHg
Wind3.7 mph SE
Humidity61%
Visibility6.2 mi
Dew point49°
Wed, 2166° / 45°0
66 °
Monaville, Wednesday, 21 October
Clear. High 66°, low 45°.
Pressure30.27 inHg
Wind3.7 mph SW
Humidity54%
Visibility6.2 mi
Dew point47°
Thu, 2265° / 48°0.01
65 °
Monaville, Thursday, 22 October
Light rain. High 65°, low 48°.
Pressure30.33 inHg
Wind5.3 mph NE
Humidity63%
Visibility6.2 mi
Dew point53°
Fri, 2360° / 47°0
60 °
Monaville, Friday, 23 October
Clear. High 60°, low 47°.
Pressure30.36 inHg
Wind7.8 mph SE
Humidity59%
Visibility—
Dew point44°
Sat, 2462° / 46°0
62 °
Monaville, Saturday, 24 October
Overcast. High 62°, low 46°.
Pressure30.39 inHg
Wind8.3 mph S
Humidity57%
Visibility—
Dew point43°
Sun, 2565° / 52°0
65 °
Monaville, Sunday, 25 October
Overcast. High 65°, low 52°.
Pressure30.24 inHg
Wind10.4 mph W
Humidity67%
Visibility—
Dew point53°
Mon, 2663° / 44°0.12
63 °
Monaville, Monday, 26 October
Light rain. High 63°, low 44°.
Pressure30.24 inHg
Wind9.6 mph SE
Humidity33%
Visibility—
Dew point31°
Tue, 2757° / 38°0.42
57 °
Monaville, Tuesday, 27 October
Light rain. High 57°, low 38°.
Pressure29.91 inHg
Wind19.3 mph NW
Humidity92%
Visibility—
Dew point52°
Wed, 2839° / 29°0.02
39 °
Monaville, Wednesday, 28 October
Light snow. High 39°, low 29°.
Pressure30.27 inHg
Wind15.4 mph NW
Humidity40%
Visibility—
Dew point15°
Thu, 2948° / 27°0
48 °
Monaville, Thursday, 29 October
Clear. High 48°, low 27°.
Pressure30.18 inHg
Wind11.6 mph W
Humidity32%
Visibility—
Dew point16°
Fri, 3052° / 35°0
52 °
Monaville, Friday, 30 October
Overcast. High 52°, low 35°.
Pressure29.94 inHg
Wind11.5 mph SW
Humidity42%
Visibility—
Dew point25°
Sat, 3156° / 37°0
56 °
Monaville, Saturday, 31 October
Partly cloudy. High 56°, low 37°.
Pressure30.06 inHg
Wind5.7 mph SE
Humidity48%
Visibility—
Dew point34°
Sun, 0150° / 39°0.34
50 °
Monaville, Sunday, 1 November
Rain. High 50°, low 39°.
Pressure29.91 inHg
Wind16.1 mph NW
Humidity92%
Visibility—
Dew point45°
Mon, 0243° / 35°0.06
43 °
Monaville, Monday, 2 November
Light rain. High 43°, low 35°.
Pressure30.15 inHg
Wind18.3 mph NW
Humidity70%
Visibility—
Dew point32°
Tue, 0349° / 35°0
49 °
Monaville, Tuesday, 3 November
Overcast. High 49°, low 35°.
Pressure30.00 inHg
Wind8 mph NW
Humidity60%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 41°0.1
51 °
Monaville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (2022)
Record low15° (1991)
Thu, 0551° / 40°0.12
51 °
Monaville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.12 in
Chance of precipitation28%
Record high71° (1978)
Record low20° (1991)
Fri, 0651° / 38°0.09
51 °
Monaville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation30%
Record high70° (2020)
Record low22° (1991)
Sat, 0750° / 38°0.05
50 °
Monaville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (2020)
Record low14° (1991)
Sun, 0850° / 38°0.04
50 °
Monaville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2020)
Record low15° (1991)
Mon, 0950° / 38°0.11
50 °
Monaville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2020)
Record low20° (1991)
Tue, 1049° / 37°0.11
49 °
Monaville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high72° (2022)
Record low16° (2017)
Wed, 1146° / 35°0.08
46 °
Monaville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation35%
Record high67° (1964)
Record low15° (2019)
Thu, 1245° / 34°0.06
45 °
Monaville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 33°0.05
45 °
Monaville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1999)
Record low2° (2019)
Sat, 1446° / 34°0.07
46 °
Monaville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (1971)
Record low15° (1986)
Sun, 1546° / 35°0.08
46 °
Monaville, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2025)
Record low17° (2019)
Mon, 1646° / 34°0.05
46 °
Monaville, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low21° (1997)
Tue, 1746° / 35°0.1
46 °
Monaville, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (2016)
Record low15° (2014)
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 Monaville, 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 Monaville, 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.