Monthly outlook for Clare, IL: average high 62.3°, average low 49.2°. That is 1.3° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 October (81.4°), the coolest 18 October (30.8°).
62.3°/49.2°
Average high / low
+1.3°
Above normal
5 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
64.8°
61°
+2.1°
20 October – 29 October
58.2°
57.3°
+0.5°
30 October – 8 November
at normal
52.9°
—
October records over 66 years
87.1°3 October 2025All-time high
22.1°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Sycamore (8 mi).
Sun, 1175° / 56°0
75 °
Clare, Sunday, 11 October
Clear. High 75°, low 56°.
Pressure29.94 inHg
Wind4.9 mph S
Humidity63%
Visibility6.2 mi
Dew point58°
Mon, 1281° / 63°0
81 °
Clare, Monday, 12 October
Clear. High 81°, low 63°.
Pressure29.80 inHg
Wind12.4 mph SW
Humidity56%
Visibility6.2 mi
Dew point62°
Tue, 1373° / 66°0
73 °
Clare, Tuesday, 13 October
Overcast. High 73°, low 66°.
Pressure29.85 inHg
Wind9.9 mph NW
Humidity75%
Visibility6.2 mi
Dew point65°
Wed, 1465° / 58°0.15
65 °
Clare, Wednesday, 14 October
Rain. High 65°, low 58°.
Pressure30.12 inHg
Wind7.7 mph NE
Humidity70%
Visibility—
Dew point54°
Thu, 1561° / 54°0.04
61 °
Clare, Thursday, 15 October
Light rain. High 61°, low 54°.
Pressure30.30 inHg
Wind12.6 mph E
Humidity63%
Visibility—
Dew point46°
Fri, 1663° / 44°0.01
63 °
Clare, Friday, 16 October
Light rain. High 63°, low 44°.
Pressure29.83 inHg
Wind24.6 mph W
Humidity61%
Visibility—
Dew point43°
Sat, 1743° / 34°0.04
43 °
Clare, Saturday, 17 October
Snow. High 43°, low 34°.
Pressure30.33 inHg
Wind22.3 mph W
Humidity53%
Visibility—
Dew point25°
Sun, 1849° / 31°0
49 °
Clare, Sunday, 18 October
Clear. High 49°, low 31°.
Pressure30.39 inHg
Wind14.7 mph S
Humidity37%
Visibility—
Dew point20°
Mon, 1958° / 38°0
58 °
Clare, Monday, 19 October
Clear. High 58°, low 38°.
Pressure30.36 inHg
Wind9 mph S
Humidity43%
Visibility—
Dew point31°
Tue, 2062° / 46°0.01
62 °
Clare, Tuesday, 20 October
Light rain. High 62°, low 46°.
Pressure30.24 inHg
Wind15.2 mph S
Humidity39%
Visibility—
Dew point33°
Wed, 2165° / 47°0.57
65 °
Clare, Wednesday, 21 October
Rain. High 65°, low 47°.
Pressure30.03 inHg
Wind16.4 mph S
Humidity53%
Visibility—
Dew point45°
Thu, 2260° / 55°0.69
60 °
Clare, Thursday, 22 October
Rain. High 60°, low 55°.
Pressure29.65 inHg
Wind15.2 mph SE
Humidity82%
Visibility—
Dew point54°
Fri, 2360° / 53°0
60 °
Clare, Friday, 23 October
Overcast. High 60°, low 53°.
Pressure29.94 inHg
Wind11.7 mph NW
Humidity82%
Visibility—
Dew point52°
Sat, 2454° / 46°0
54 °
Clare, Saturday, 24 October
Light rain. High 54°, low 46°.
Pressure29.94 inHg
Wind17.4 mph W
Humidity61%
Visibility—
Dew point39°
Sun, 2549° / 37°0
49 °
Clare, Sunday, 25 October
Partly cloudy. High 49°, low 37°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity52%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2656° / 42°0.09
56 °
Clare, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation23%
Record high79° (1963)
Record low22° (1962)
Tue, 2756° / 41°0.08
56 °
Clare, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation22%
Record high75° (2014)
Record low27° (1997)
Wed, 2855° / 41°0.04
55 °
Clare, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.04 in
Chance of precipitation17%
Record high74° (1999)
Record low25° (1976)
Thu, 2955° / 40°0.06
55 °
Clare, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (2024)
Record low23° (1980)
Fri, 3057° / 41°0.1
57 °
Clare, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.1 in
Chance of precipitation27%
Record high77° (1971)
Record low22° (1988)
Sat, 3155° / 42°0.11
55 °
Clare, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.11 in
Chance of precipitation42%
Record high73° (1974)
Record low26° (2019)
Sun, 0154° / 40°0.17
54 °
Clare, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.17 in
Chance of precipitation38%
Record high73° (2000)
Record low18° (2019)
Mon, 0253° / 39°0.1
53 °
Clare, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation33%
Record high74° (1961)
Record low21° (1991)
Tue, 0352° / 38°0.07
52 °
Clare, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (1964)
Record low16° (1991)
Wed, 0452° / 40°0.1
52 °
Clare, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.1 in
Chance of precipitation25%
Record high71° (2015)
Record low14° (1991)
Thu, 0552° / 38°0.11
52 °
Clare, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation27%
Record high73° (1978)
Record low17° (1991)
Fri, 0651° / 37°0.09
51 °
Clare, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation27%
Record high71° (1975)
Record low22° (1991)
Sat, 0751° / 37°0.03
51 °
Clare, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (2009)
Record low13° (1991)
Sun, 0851° / 37°0.05
51 °
Clare, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation13%
Record high72° (2020)
Record low12° (1991)
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 Clare, 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 Clare, 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.