Monthly outlook for Alworth, IL: average high 57.2°, average low 40°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 October (70.7°), the coolest 28 October (26.9°).
57.2°/40°
Average high / low
+0.9°
Above normal
3 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.4°
56.7°
+2.1°
30 October – 8 November
51.7°
52.3°
-0.3°
9 November – 18 November
at normal
46.5°
—
October records over 66 years
88°3 October 2025All-time high
22.1°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Rockford (9 mi).
Wed, 2171° / 41°0
71 °
Alworth, Wednesday, 21 October
Clear. High 71°, low 41°.
Pressure30.27 inHg
Wind5 mph SW
Humidity56%
Visibility6.2 mi
Dew point49°
Thu, 2269° / 46°0
69 °
Alworth, Thursday, 22 October
Clear. High 69°, low 46°.
Pressure30.30 inHg
Wind3.6 mph E
Humidity62%
Visibility6.2 mi
Dew point53°
Fri, 2367° / 49°0
67 °
Alworth, Friday, 23 October
Clear. High 67°, low 49°.
Pressure30.36 inHg
Wind6.2 mph SE
Humidity69%
Visibility6.2 mi
Dew point53°
Sat, 2468° / 50°0
68 °
Alworth, Saturday, 24 October
Partly cloudy. High 68°, low 50°.
Pressure30.30 inHg
Wind12.4 mph S
Humidity56%
Visibility—
Dew point49°
Sun, 2569° / 53°0
69 °
Alworth, Sunday, 25 October
Overcast. High 69°, low 53°.
Pressure30.36 inHg
Wind8.5 mph SW
Humidity66%
Visibility—
Dew point54°
Mon, 2657° / 37°0.3
57 °
Alworth, Monday, 26 October
Rain. High 57°, low 37°.
Pressure30.06 inHg
Wind14.9 mph N
Humidity69%
Visibility—
Dew point47°
Tue, 2745° / 33°0
45 °
Alworth, Tuesday, 27 October
Clear. High 45°, low 33°.
Pressure30.42 inHg
Wind15.3 mph NW
Humidity44%
Visibility—
Dew point22°
Wed, 2845° / 27°0
45 °
Alworth, Wednesday, 28 October
Clear. High 45°, low 27°.
Pressure30.36 inHg
Wind13.6 mph SW
Humidity37%
Visibility—
Dew point17°
Thu, 2946° / 35°0
46 °
Alworth, Thursday, 29 October
Clear. High 46°, low 35°.
Pressure30.09 inHg
Wind14.9 mph NW
Humidity49%
Visibility—
Dew point26°
Fri, 3042° / 30°0
42 °
Alworth, Friday, 30 October
Clear. High 42°, low 30°.
Pressure30.42 inHg
Wind14.6 mph N
Humidity43%
Visibility—
Dew point19°
Sat, 3148° / 28°0
48 °
Alworth, Saturday, 31 October
Overcast. High 48°, low 28°.
Pressure30.21 inHg
Wind15.1 mph SW
Humidity43%
Visibility—
Dew point22°
Sun, 0150° / 40°0
50 °
Alworth, Sunday, 1 November
Overcast. High 50°, low 40°.
Pressure30.09 inHg
Wind11.7 mph SW
Humidity80%
Visibility—
Dew point41°
Mon, 0258° / 37°0
58 °
Alworth, Monday, 2 November
Clear. High 58°, low 37°.
Pressure30.27 inHg
Wind9.2 mph S
Humidity60%
Visibility—
Dew point40°
Tue, 0358° / 44°0.05
58 °
Alworth, Tuesday, 3 November
Light rain. High 58°, low 44°.
Pressure30.15 inHg
Wind16.9 mph S
Humidity53%
Visibility—
Dew point39°
Wed, 0455° / 49°0.78
55 °
Alworth, Wednesday, 4 November
Rain. High 55°, low 49°.
Pressure29.91 inHg
Wind14.7 mph S
Humidity95%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0551° / 38°0.11
51 °
Alworth, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation25%
Record high70° (1978)
Record low18° (1991)
Fri, 0651° / 37°0.09
51 °
Alworth, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1975)
Record low21° (1991)
Sat, 0750° / 36°0.03
50 °
Alworth, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low10° (1991)
Sun, 0850° / 36°0.05
50 °
Alworth, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation20%
Record high71° (2020)
Record low13° (1991)
Mon, 0950° / 37°0.11
50 °
Alworth, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (1991)
Tue, 1049° / 35°0.11
49 °
Alworth, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (2022)
Record low15° (2017)
Wed, 1146° / 33°0.06
46 °
Alworth, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1964)
Record low13° (2019)
Thu, 1245° / 32°0.07
45 °
Alworth, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 32°0.04
45 °
Alworth, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (1999)
Record low8° (1986)
Sat, 1446° / 32°0.06
46 °
Alworth, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (1971)
Record low10° (1995)
Sun, 1546° / 33°0.07
46 °
Alworth, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2025)
Record low9° (1995)
Mon, 1646° / 32°0.05
46 °
Alworth, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low19° (2019)
Tue, 1746° / 33°0.11
46 °
Alworth, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation27%
Record high71° (2016)
Record low15° (2005)
Wed, 1846° / 33°0.09
46 °
Alworth, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (1999)
Record low11° (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 Alworth, 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 Alworth, 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.