As of 12:47 CDT

Weather in Spring Bay, IL

67°

Spring Bay, Thursday, 15 October, 12:47

Overcast. Feels like 68°. High 71°, low 58°.

Pressure29.94 inHg

Wind8.2 mph S

Humidity92%

Visibility6.2 mi

Dew point65°

See detailed hourly forecast

Monthly outlook for Spring Bay, IL: average high 67.9°, average low 52.4°. That is 4.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 27 October (77.1°), the coolest 17 October (38.1°).

67.9°/52.4°

Average high / low

+4.5°

Above normal

5 / 4

Wet days / normal

1.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 October – 24 October	67.1°	61°	+3.4°
25 October – 3 November	69.2°	57°	+6.8°
4 November – 13 November	at normal	51.7°	—

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).

Fri, 1656° / 48°

0.04

56 °

Spring Bay, Friday, 16 October

Light rain. High 56°, low 48°.

Pressure30.15 inHg

Wind16.9 mph NW

Humidity65%

Visibility6.2 mi

Dew point41°

Sat, 1757° / 38°

57 °

Spring Bay, Saturday, 17 October

Clear. High 57°, low 38°.

Pressure30.56 inHg

Wind2.2 mph SW

Humidity44%

Visibility6.2 mi

Dew point31°

Sun, 1862° / 42°

62 °

Spring Bay, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.45 inHg

Wind11.8 mph S

Humidity48%

Visibility6.2 mi

Dew point39°

Mon, 1966° / 44°

66 °

Spring Bay, Monday, 19 October

Overcast. High 66°, low 44°.

Pressure30.36 inHg

Wind6.8 mph S

Humidity55%

Visibility6.2 mi

Dew point43°

Tue, 2067° / 48°

0.01

67 °

Spring Bay, Tuesday, 20 October

Light rain. High 67°, low 48°.

Pressure30.33 inHg

Wind6.2 mph S

Humidity49%

Visibility—

Dew point44°

Wed, 2173° / 54°

73 °

Spring Bay, Wednesday, 21 October

Overcast. High 73°, low 54°.

Pressure30.33 inHg

Wind7 mph SE

Humidity47%

Visibility—

Dew point48°

Thu, 2272° / 55°

72 °

Spring Bay, Thursday, 22 October

Partly cloudy. High 72°, low 55°.

Pressure30.21 inHg

Wind9.6 mph S

Humidity41%

Visibility—

Dew point45°

Fri, 2375° / 56°

75 °

Spring Bay, Friday, 23 October

Overcast. High 75°, low 56°.

Pressure30.21 inHg

Wind13.1 mph SE

Humidity35%

Visibility—

Dew point42°

Sat, 2473° / 60°

73 °

Spring Bay, Saturday, 24 October

Overcast. High 73°, low 60°.

Pressure30.12 inHg

Wind16.5 mph S

Humidity41%

Visibility—

Dew point46°

Sun, 2565° / 49°

65 °

Spring Bay, Sunday, 25 October

Clear. High 65°, low 49°.

Pressure30.53 inHg

Wind12 mph NE

Humidity37%

Visibility—

Dew point35°

Mon, 2667° / 45°

67 °

Spring Bay, Monday, 26 October

Overcast. High 67°, low 45°.

Pressure30.45 inHg

Wind9.6 mph E

Humidity44%

Visibility—

Dew point40°

Tue, 2777° / 62°

0.02

77 °

Spring Bay, Tuesday, 27 October

Light rain. High 77°, low 62°.

Pressure30.12 inHg

Wind16.4 mph SW

Humidity38%

Visibility—

Dew point46°

Wed, 2863° / 59°

0.3

63 °

Spring Bay, Wednesday, 28 October

Rain. High 63°, low 59°.

Pressure30.00 inHg

Wind13.8 mph SW

Humidity86%

Visibility—

Dew point55°

Thu, 2968° / 60°

0.11

68 °

Spring Bay, Thursday, 29 October

Light rain. High 68°, low 60°.

Pressure29.94 inHg

Wind13.1 mph S

Humidity81%

Visibility—

Dew point60°

Fri, 3075° / 59°

0.99

75 °

Spring Bay, Friday, 30 October

Heavy rain. High 75°, low 59°.

Pressure29.71 inHg

Wind22.3 mph W

Humidity69%

Visibility—

Dew point63°

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

Sat, 3158° / 43°

0.17

58 °

Spring Bay, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.17 in

Chance of precipitation42%

Record high74° (1974)

Record low24° (2019)

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)

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.