As of 14:31 CDT

Weather in Wilmette, IL

65°

Wilmette, Tuesday, 20 October, 14:31

Clear. Feels like 64°. High 67°, low 42°.

Pressure30.33 inHg

Wind5.7 mph N

Humidity60%

Visibility5.1 mi

Dew point51°

See detailed hourly forecast

Monthly outlook for Wilmette, IL: average high 58.2°, average low 44.7°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (70.8°), the coolest 30 October (36.1°).

58.2°/44.7°

Average high / low

+1.7°

Above normal

3 / 5

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
20 October – 29 October	61.1°	56.1°	+2.8°
30 October – 8 November	53.3°	52.3°	+0.6°
9 November – 18 November	at normal	47°	—

October records over 66 years

87.3°3 October 2025All-time high

28°31 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Evanston (3 mi).

Wed, 2171° / 44°

71 °

Wilmette, Wednesday, 21 October

Clear. High 71°, low 44°.

Pressure30.27 inHg

Wind2.3 mph SW

Humidity59%

Visibility6.2 mi

Dew point49°

Thu, 2266° / 49°

66 °

Wilmette, Thursday, 22 October

Partly cloudy. High 66°, low 49°.

Pressure30.30 inHg

Wind4.7 mph E

Humidity74%

Visibility6.2 mi

Dew point57°

Fri, 2362° / 52°

62 °

Wilmette, Friday, 23 October

Clear. High 62°, low 52°.

Pressure30.39 inHg

Wind4 mph SE

Humidity76%

Visibility6.2 mi

Dew point53°

Sat, 2466° / 48°

66 °

Wilmette, Saturday, 24 October

Overcast. High 66°, low 48°.

Pressure30.36 inHg

Wind6.3 mph S

Humidity70%

Visibility6.2 mi

Dew point51°

Sun, 2566° / 54°

66 °

Wilmette, Sunday, 25 October

Overcast. High 66°, low 54°.

Pressure30.36 inHg

Wind7.5 mph SW

Humidity65%

Visibility—

Dew point53°

Mon, 2668° / 45°

0.29

68 °

Wilmette, Monday, 26 October

Rain. High 68°, low 45°.

Pressure30.03 inHg

Wind15.3 mph N

Humidity42%

Visibility—

Dew point43°

Tue, 2747° / 40°

0.13

47 °

Wilmette, Tuesday, 27 October

Rain. High 47°, low 40°.

Pressure30.36 inHg

Wind15.3 mph NW

Humidity38%

Visibility—

Dew point21°

Wed, 2848° / 36°

48 °

Wilmette, Wednesday, 28 October

Clear. High 48°, low 36°.

Pressure30.39 inHg

Wind12.1 mph SW

Humidity29%

Visibility—

Dew point14°

Thu, 2950° / 42°

50 °

Wilmette, Thursday, 29 October

Clear. High 50°, low 42°.

Pressure30.06 inHg

Wind13.3 mph SW

Humidity40%

Visibility—

Dew point26°

Fri, 3044° / 36°

44 °

Wilmette, Friday, 30 October

Clear. High 44°, low 36°.

Pressure30.39 inHg

Wind14.6 mph NW

Humidity43%

Visibility—

Dew point20°

Sat, 3150° / 37°

50 °

Wilmette, Saturday, 31 October

Partly cloudy. High 50°, low 37°.

Pressure30.24 inHg

Wind13.1 mph SW

Humidity33%

Visibility—

Dew point19°

Sun, 0150° / 45°

0.01

50 °

Wilmette, Sunday, 1 November

Light rain. High 50°, low 45°.

Pressure30.09 inHg

Wind12 mph SW

Humidity80%

Visibility—

Dew point42°

Mon, 0258° / 44°

58 °

Wilmette, Monday, 2 November

Clear. High 58°, low 44°.

Pressure30.30 inHg

Wind6.3 mph S

Humidity55%

Visibility—

Dew point38°

Tue, 0360° / 49°

60 °

Wilmette, Tuesday, 3 November

Overcast. High 60°, low 49°.

Pressure30.21 inHg

Wind11.5 mph S

Humidity46%

Visibility—

Dew point37°

Wed, 0458° / 52°

0.48

58 °

Wilmette, Wednesday, 4 November

Rain. High 58°, low 52°.

Pressure29.91 inHg

Wind12.7 mph S

Humidity91%

Visibility—

Dew point50°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 0552° / 42°

0.12

52 °

Wilmette, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°

Average low42°

Average precipitation0.12 in

Chance of precipitation33%

Record high69° (1978)

Record low22° (1991)

Fri, 0651° / 40°

0.07

51 °

Wilmette, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°

Average low40°

Average precipitation0.07 in

Chance of precipitation30%

Record high70° (2020)

Record low25° (1991)

Sat, 0750° / 41°

0.06

50 °

Wilmette, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°

Average low41°

Average precipitation0.06 in

Chance of precipitation22%

Record high69° (2020)

Record low23° (1991)

Sun, 0850° / 41°

0.06

50 °

Wilmette, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°

Average low41°

Average precipitation0.06 in

Chance of precipitation18%

Record high73° (2020)

Record low19° (1991)

Mon, 0951° / 41°

0.12

51 °

Wilmette, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°

Average low41°

Average precipitation0.12 in

Chance of precipitation38%

Record high73° (2020)

Record low23° (1991)

Tue, 1049° / 40°

0.11

49 °

Wilmette, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°

Average low40°

Average precipitation0.11 in

Chance of precipitation33%

Record high73° (2020)

Record low19° (2018)

Wed, 1147° / 38°

0.08

47 °

Wilmette, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high47°

Average low38°

Average precipitation0.08 in

Chance of precipitation32%

Record high66° (1964)

Record low18° (2019)

Thu, 1246° / 37°

0.06

46 °

Wilmette, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.06 in

Chance of precipitation23%

Record high65° (1964)

Record low8° (2019)

Fri, 1346° / 36°

0.05

46 °

Wilmette, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low36°

Average precipitation0.05 in

Chance of precipitation18%

Record high64° (1999)

Record low9° (2019)

Sat, 1447° / 37°

0.07

47 °

Wilmette, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°

Average low37°

Average precipitation0.07 in

Chance of precipitation35%

Record high63° (2025)

Record low17° (1986)

Sun, 1546° / 37°

0.09

46 °

Wilmette, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.09 in

Chance of precipitation28%

Record high70° (2025)

Record low21° (2019)

Mon, 1646° / 37°

0.05

46 °

Wilmette, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.05 in

Chance of precipitation23%

Record high62° (2023)

Record low24° (1997)

Tue, 1746° / 37°

0.09

46 °

Wilmette, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.09 in

Chance of precipitation32%

Record high64° (2016)

Record low18° (2014)

Wed, 1846° / 37°

0.13

46 °

Wilmette, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.13 in

Chance of precipitation27%

Record high63° (2016)

Record low14° (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 Wilmette, 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 Wilmette, 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.