As of 11:42 CDT

Weather in Spring Bay, IL

52°

Spring Bay, Friday, 16 October, 11:42

Overcast. Feels like 50°. High 56°, low 46°.

Pressure30.15 inHg

Wind6 mph NW

Humidity81%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Spring Bay, IL: average high 64.9°, average low 49.4°. That is 3.1° above the climate normal for October. Precipitation is expected on 4 days (about 2.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 29 October (73.2°), the coolest 17 October (37°).

64.9°/49.4°

Average high / low

+3.1°

Above normal

4 / 5

Wet days / normal

2.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
16 October – 25 October	64.4°	60.4°	+2.2°
26 October – 4 November	65.6°	56.6°	+5°
5 November – 14 November	at normal	51.3°	—

October records over 66 years

89.1°3 October 2025All-time high

21°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Peoria (7 mi).

Sat, 1756° / 37°

56 °

Spring Bay, Saturday, 17 October

Clear. High 56°, low 37°.

Pressure30.56 inHg

Wind1.5 mph S

Humidity43%

Visibility6.2 mi

Dew point28°

Sun, 1862° / 42°

62 °

Spring Bay, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.47 inHg

Wind10.3 mph S

Humidity51%

Visibility6.2 mi

Dew point40°

Mon, 1965° / 43°

65 °

Spring Bay, Monday, 19 October

Clear. High 65°, low 43°.

Pressure30.39 inHg

Wind3.8 mph SE

Humidity48%

Visibility6.2 mi

Dew point42°

Tue, 2068° / 45°

68 °

Spring Bay, Tuesday, 20 October

Partly cloudy. High 68°, low 45°.

Pressure30.33 inHg

Wind4.1 mph SE

Humidity44%

Visibility—

Dew point41°

Wed, 2169° / 53°

69 °

Spring Bay, Wednesday, 21 October

Partly cloudy. High 69°, low 53°.

Pressure30.30 inHg

Wind4.7 mph S

Humidity40%

Visibility—

Dew point41°

Thu, 2268° / 53°

0.04

68 °

Spring Bay, Thursday, 22 October

Light rain. High 68°, low 53°.

Pressure30.15 inHg

Wind6.4 mph SW

Humidity46%

Visibility—

Dew point40°

Fri, 2366° / 51°

66 °

Spring Bay, Friday, 23 October

Clear. High 66°, low 51°.

Pressure30.24 inHg

Wind11.6 mph E

Humidity60%

Visibility—

Dew point50°

Sat, 2466° / 48°

66 °

Spring Bay, Saturday, 24 October

Overcast. High 66°, low 48°.

Pressure30.24 inHg

Wind9.6 mph SE

Humidity49%

Visibility—

Dew point42°

Sun, 2568° / 52°

68 °

Spring Bay, Sunday, 25 October

Overcast. High 68°, low 52°.

Pressure30.18 inHg

Wind9.4 mph SE

Humidity38%

Visibility—

Dew point39°

Mon, 2672° / 53°

72 °

Spring Bay, Monday, 26 October

Overcast. High 72°, low 53°.

Pressure30.09 inHg

Wind11.6 mph S

Humidity35%

Visibility—

Dew point39°

Tue, 2761° / 46°

61 °

Spring Bay, Tuesday, 27 October

Overcast. High 61°, low 46°.

Pressure30.24 inHg

Wind8.6 mph NW

Humidity50%

Visibility—

Dew point38°

Wed, 2863° / 50°

0.13

63 °

Spring Bay, Wednesday, 28 October

Light rain. High 63°, low 50°.

Pressure30.09 inHg

Wind12 mph SE

Humidity62%

Visibility—

Dew point47°

Thu, 2973° / 63°

0.11

73 °

Spring Bay, Thursday, 29 October

Light rain. High 73°, low 63°.

Pressure29.97 inHg

Wind13.7 mph SE

Humidity69%

Visibility—

Dew point57°

Fri, 3067° / 57°

67 °

Spring Bay, Friday, 30 October

Overcast. High 67°, low 57°.

Pressure30.09 inHg

Wind8.7 mph NE

Humidity52%

Visibility—

Dew point48°

Sat, 3157° / 53°

2.26

57 °

Spring Bay, Saturday, 31 October

Heavy rain. High 57°, low 53°.

Pressure30.09 inHg

Wind18.3 mph E

Humidity94%

Visibility—

Dew point52°

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

Sun, 0157° / 42°

0.18

57 °

Spring Bay, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.18 in

Chance of precipitation32%

Record high77° (2016)

Record low22° (2019)

Mon, 0255° / 41°

0.08

55 °

Spring Bay, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°

Average low41°

Average precipitation0.08 in

Chance of precipitation33%

Record high75° (1961)

Record low23° (1991)

Tue, 0354° / 40°

0.09

54 °

Spring Bay, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°

Average low40°

Average precipitation0.09 in

Chance of precipitation23%

Record high74° (1964)

Record low17° (1991)

Wed, 0454° / 41°

0.08

54 °

Spring Bay, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°

Average low41°

Average precipitation0.08 in

Chance of precipitation23%

Record high74° (1978)

Record low16° (1991)

Thu, 0553° / 39°

0.13

53 °

Spring Bay, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.13 in

Chance of precipitation25%

Record high74° (1978)

Record low19° (1991)

Fri, 0653° / 38°

0.09

53 °

Spring Bay, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.09 in

Chance of precipitation25%

Record high71° (2020)

Record low24° (1991)

Sat, 0753° / 38°

0.04

53 °

Spring Bay, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.04 in

Chance of precipitation17%

Record high69° (1966)

Record low15° (1991)

Sun, 0853° / 38°

0.05

53 °

Spring Bay, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.05 in

Chance of precipitation20%

Record high75° (1999)

Record low12° (1991)

Mon, 0954° / 39°

0.14

54 °

Spring Bay, Monday, 9 November

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.14 in

Chance of precipitation35%

Record high74° (2020)

Record low16° (1991)

Tue, 1051° / 37°

0.15

51 °

Spring Bay, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.15 in

Chance of precipitation32%

Record high73° (2020)

Record low17° (2018)

Wed, 1149° / 35°

0.07

49 °

Spring Bay, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.07 in

Chance of precipitation27%

Record high73° (1964)

Record low17° (2019)

Thu, 1248° / 33°

0.07

48 °

Spring Bay, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.07 in

Chance of precipitation25%

Record high70° (2010)

Record low9° (2019)

Fri, 1349° / 34°

0.06

49 °

Spring Bay, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.06 in

Chance of precipitation15%

Record high72° (1999)

Record low7° (1986)

Sat, 1449° / 35°

0.07

49 °

Spring Bay, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.07 in

Chance of precipitation28%

Record high72° (1971)

Record low14° (1986)

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 Spring Bay, 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 Spring Bay, 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.