As of 09:04 CDT

Weather in Princeton, IA

52°

Princeton, Wednesday, 21 October, 09:04

Partly cloudy. Feels like 51°. High 73°, low 45°.

Pressure30.27 inHg

Wind4.6 mph SE

Humidity80%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Princeton, IA: average high 63.4°, average low 50.3°. That is 3.9° above the climate normal for October. Precipitation is expected on 8 days (about 3.7 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (74.9°), the coolest 30 October (40.7°).

63.4°/50.3°

Average high / low

+3.9°

Above normal

8 / 5

Wet days / normal

3.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	67.3°	57.9°	+5.2°
31 October – 9 November	56.8°	53°	+2.1°
10 November – 19 November	at normal	47.8°	—

October records over 66 years

88.2°3 October 2025All-time high

17.8°28 October 1967All-time low

Thu, 2275° / 49°

75 °

Princeton, Thursday, 22 October

Mostly clear. High 75°, low 49°.

Pressure30.27 inHg

Wind2.3 mph SE

Humidity59%

Visibility6.2 mi

Dew point54°

Fri, 2371° / 55°

71 °

Princeton, Friday, 23 October

Mostly clear. High 71°, low 55°.

Pressure30.30 inHg

Wind6.3 mph SE

Humidity61%

Visibility6.2 mi

Dew point54°

Sat, 2469° / 52°

69 °

Princeton, Saturday, 24 October

Overcast. High 69°, low 52°.

Pressure30.33 inHg

Wind8.9 mph S

Humidity57%

Visibility6.2 mi

Dew point50°

Sun, 2572° / 51°

72 °

Princeton, Sunday, 25 October

Overcast. High 72°, low 51°.

Pressure30.33 inHg

Wind6 mph S

Humidity53%

Visibility—

Dew point49°

Mon, 2670° / 55°

70 °

Princeton, Monday, 26 October

Overcast. High 70°, low 55°.

Pressure30.18 inHg

Wind9.6 mph SW

Humidity53%

Visibility—

Dew point49°

Tue, 2760° / 51°

0.06

60 °

Princeton, Tuesday, 27 October

Light rain. High 60°, low 51°.

Pressure30.27 inHg

Wind10.6 mph E

Humidity59%

Visibility—

Dew point45°

Wed, 2867° / 54°

67 °

Princeton, Wednesday, 28 October

Partly cloudy. High 67°, low 54°.

Pressure30.03 inHg

Wind14.3 mph SW

Humidity58%

Visibility—

Dew point50°

Thu, 2960° / 44°

0.06

60 °

Princeton, Thursday, 29 October

Light rain. High 60°, low 44°.

Pressure30.27 inHg

Wind12.6 mph N

Humidity47%

Visibility—

Dew point31°

Fri, 3057° / 41°

57 °

Princeton, Friday, 30 October

Overcast. High 57°, low 41°.

Pressure30.27 inHg

Wind11.8 mph E

Humidity46%

Visibility—

Dew point33°

Sat, 3161° / 50°

1.04

61 °

Princeton, Saturday, 31 October

Rain. High 61°, low 50°.

Pressure29.80 inHg

Wind19.5 mph S

Humidity87%

Visibility—

Dew point54°

Sun, 0161° / 57°

0.79

61 °

Princeton, Sunday, 1 November

Rain. High 61°, low 57°.

Pressure29.80 inHg

Wind20.1 mph S

Humidity96%

Visibility—

Dew point57°

Mon, 0257° / 51°

0.29

57 °

Princeton, Monday, 2 November

Light rain. High 57°, low 51°.

Pressure29.88 inHg

Wind14.7 mph N

Humidity92%

Visibility—

Dew point52°

Tue, 0352° / 50°

0.44

52 °

Princeton, Tuesday, 3 November

Rain. High 52°, low 50°.

Pressure29.74 inHg

Wind18 mph N

Humidity92%

Visibility—

Dew point49°

Wed, 0457° / 51°

0.67

57 °

Princeton, Wednesday, 4 November

Rain. High 57°, low 51°.

Pressure29.38 inHg

Wind16.4 mph N

Humidity96%

Visibility—

Dew point55°

Thu, 0553° / 48°

0.35

53 °

Princeton, Thursday, 5 November

Rain. High 53°, low 48°.

Pressure29.50 inHg

Wind12.9 mph SW

Humidity91%

Visibility—

Dew point47°

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

Fri, 0652° / 38°

0.08

52 °

Princeton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.08 in

Chance of precipitation28%

Record high71° (2020)

Record low21° (1991)

Sat, 0752° / 37°

0.02

52 °

Princeton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.02 in

Chance of precipitation15%

Record high69° (1966)

Record low13° (1991)

Sun, 0852° / 37°

0.04

52 °

Princeton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.04 in

Chance of precipitation15%

Record high75° (1999)

Record low12° (1991)

Mon, 0951° / 37°

0.11

51 °

Princeton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.11 in

Chance of precipitation33%

Record high74° (1999)

Record low17° (1991)

Tue, 1050° / 35°

0.1

50 °

Princeton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.1 in

Chance of precipitation28%

Record high73° (2022)

Record low15° (2018)

Wed, 1148° / 33°

0.07

48 °

Princeton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.07 in

Chance of precipitation22%

Record high72° (1964)

Record low15° (2019)

Thu, 1246° / 32°

0.06

46 °

Princeton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.06 in

Chance of precipitation25%

Record high66° (1964)

Record low7° (2019)

Fri, 1347° / 32°

0.05

47 °

Princeton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.05 in

Chance of precipitation25%

Record high72° (1999)

Record low6° (1986)

Sat, 1448° / 33°

0.06

48 °

Princeton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.06 in

Chance of precipitation28%

Record high70° (2025)

Record low14° (1986)

Sun, 1547° / 34°

0.07

47 °

Princeton, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.07 in

Chance of precipitation28%

Record high69° (2025)

Record low18° (1982)

Mon, 1648° / 33°

0.06

48 °

Princeton, Monday, 16 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.06 in

Chance of precipitation25%

Record high66° (1971)

Record low17° (1997)

Tue, 1748° / 34°

0.13

48 °

Princeton, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.13 in

Chance of precipitation25%

Record high73° (2016)

Record low14° (2005)

Wed, 1848° / 34°

0.07

48 °

Princeton, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.07 in

Chance of precipitation30%

Record high70° (1999)

Record low11° (2014)

Thu, 1948° / 33°

0.06

48 °

Princeton, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.06 in

Chance of precipitation27%

Record high66° (1979)

Record low16° (2022)

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 Princeton, IA 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 Princeton, IA 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.