As of 14:49 CDT

Weather in Princeton, IA

70°

Princeton, Monday, 19 October, 14:49

Overcast. Feels like 68°. High 70°, low 40°.

Pressure30.33 inHg

Wind6.9 mph SE

Humidity39%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Monthly outlook for Princeton, IA: average high 58.6°, average low 41.2°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 19 October (69.8°), the coolest 28 October (29.4°).

58.6°/41.2°

Average high / low

+0.7°

Above normal

3 / 5

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
19 October – 28 October	63.2°	58.5°	+2.6°
29 October – 7 November	51.1°	54.1°	-1.7°
8 November – 17 November	at normal	48.6°	—

October records over 66 years

88.2°3 October 2025All-time high

17.8°28 October 1967All-time low

Tue, 2069° / 43°

69 °

Princeton, Tuesday, 20 October

Clear. High 69°, low 43°.

Pressure30.39 inHg

Wind4.1 mph SE

Humidity53%

Visibility6.2 mi

Dew point46°

Wed, 2169° / 44°

69 °

Princeton, Wednesday, 21 October

Clear. High 69°, low 44°.

Pressure30.27 inHg

Wind3.4 mph SW

Humidity57%

Visibility6.2 mi

Dew point50°

Thu, 2269° / 48°

69 °

Princeton, Thursday, 22 October

Clear. High 69°, low 48°.

Pressure30.33 inHg

Wind3.4 mph E

Humidity61%

Visibility6.2 mi

Dew point53°

Fri, 2366° / 49°

66 °

Princeton, Friday, 23 October

Clear. High 66°, low 49°.

Pressure30.33 inHg

Wind7.4 mph SE

Humidity64%

Visibility6.2 mi

Dew point50°

Sat, 2466° / 49°

66 °

Princeton, Saturday, 24 October

Overcast. High 66°, low 49°.

Pressure30.36 inHg

Wind9.9 mph S

Humidity49%

Visibility—

Dew point43°

Sun, 2567° / 53°

67 °

Princeton, Sunday, 25 October

Light rain. High 67°, low 53°.

Pressure30.30 inHg

Wind8.7 mph NW

Humidity68%

Visibility—

Dew point51°

Mon, 2658° / 49°

0.25

58 °

Princeton, Monday, 26 October

Rain. High 58°, low 49°.

Pressure30.21 inHg

Wind10.3 mph S

Humidity61%

Visibility—

Dew point44°

Tue, 2757° / 39°

0.23

57 °

Princeton, Tuesday, 27 October

Light rain. High 57°, low 39°.

Pressure30.00 inHg

Wind16.6 mph NW

Humidity91%

Visibility—

Dew point47°

Wed, 2841° / 29°

41 °

Princeton, Wednesday, 28 October

Clear. High 41°, low 29°.

Pressure30.36 inHg

Wind14.9 mph NW

Humidity35%

Visibility—

Dew point13°

Thu, 2951° / 30°

51 °

Princeton, Thursday, 29 October

Clear. High 51°, low 30°.

Pressure30.21 inHg

Wind11.2 mph SW

Humidity41%

Visibility—

Dew point23°

Fri, 3055° / 38°

55 °

Princeton, Friday, 30 October

Overcast. High 55°, low 38°.

Pressure29.94 inHg

Wind10.6 mph SW

Humidity41%

Visibility—

Dew point29°

Sat, 3154° / 40°

0.02

54 °

Princeton, Saturday, 31 October

Light rain. High 54°, low 40°.

Pressure30.03 inHg

Wind9 mph S

Humidity47%

Visibility—

Dew point33°

Sun, 0152° / 39°

0.35

52 °

Princeton, Sunday, 1 November

Rain. High 52°, low 39°.

Pressure29.94 inHg

Wind16.9 mph NW

Humidity85%

Visibility—

Dew point46°

Mon, 0247° / 34°

47 °

Princeton, Monday, 2 November

Clear. High 47°, low 34°.

Pressure30.21 inHg

Wind16.6 mph N

Humidity54%

Visibility—

Dew point28°

Tue, 0347° / 33°

47 °

Princeton, Tuesday, 3 November

Overcast. High 47°, low 33°.

Pressure30.06 inHg

Wind6 mph N

Humidity59%

Visibility—

Dew point31°

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

Wed, 0453° / 40°

0.09

53 °

Princeton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°

Average low40°

Average precipitation0.09 in

Chance of precipitation20%

Record high71° (2022)

Record low14° (1991)

Thu, 0552° / 38°

0.1

52 °

Princeton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.1 in

Chance of precipitation25%

Record high72° (1978)

Record low19° (1991)

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)

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.