As of 05:45 CDT

Weather in Harper, IA

57°Current weather

Harper, Friday, 9 October, 05:45

Rain. Feels like 56°. High 82°, low 57°.

Pressure30.03 inHg
Wind6.4 mph SE
Humidity89%
Visibility6.2 mi
Dew point54°

Monthly outlook for Harper, IA: average high 68.6°, average low 51.1°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 12 October (84.7°), the coolest 18 October (35.3°).

68.6°/51.1°
Average high / low
+3.4°
Above normal
4 / 4
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October70.9°63.5°+4.1°
19 October – 28 October64.7°59.3°+3°
29 October – 7 Novemberat normal54.8°—

October records over 66 years

92.8°6 October 1963All-time high
17.4°28 October 1967All-time low

Climate normals and records are computed from the nearest reference point — West Chester (12 mi).

Sat, 1081° / 60°0Overcast
81 °Overcast

Harper, Saturday, 10 October

Overcast. High 81°, low 60°.

Pressure29.97 inHg
Wind10.1 mph S
Humidity63%
Visibility6.2 mi
Dew point62°
Sun, 1179° / 56°0Clear
79 °Clear

Harper, Sunday, 11 October

Clear. High 79°, low 56°.

Pressure29.88 inHg
Wind7.7 mph S
Humidity56%
Visibility6.2 mi
Dew point57°
Mon, 1285° / 67°0Partly cloudy
85 °Partly cloudy

Harper, Monday, 12 October

Partly cloudy. High 85°, low 67°.

Pressure29.77 inHg
Wind11.5 mph SW
Humidity61%
Visibility6.2 mi
Dew point66°
Tue, 1378° / 68°0.16Light rain
78 °Light rain

Harper, Tuesday, 13 October

Light rain. High 78°, low 68°.

Pressure29.83 inHg
Wind15.3 mph SW
Humidity67%
Visibility—
Dew point64°
Wed, 1471° / 64°0.44Rain
71 °Rain

Harper, Wednesday, 14 October

Rain. High 71°, low 64°.

Pressure29.83 inHg
Wind11.6 mph NE
Humidity88%
Visibility—
Dew point66°
Thu, 1576° / 56°0.6Rain
76 °Rain

Harper, Thursday, 15 October

Rain. High 76°, low 56°.

Pressure29.65 inHg
Wind22.3 mph W
Humidity95%
Visibility—
Dew point66°
Fri, 1653° / 44°0Mostly clear
53 °Mostly clear

Harper, Friday, 16 October

Mostly clear. High 53°, low 44°.

Pressure30.09 inHg
Wind24.7 mph W
Humidity49%
Visibility—
Dew point31°
Sat, 1748° / 39°0Overcast
48 °Overcast

Harper, Saturday, 17 October

Overcast. High 48°, low 39°.

Pressure30.39 inHg
Wind17.7 mph NW
Humidity53%
Visibility—
Dew point30°
Sun, 1856° / 35°0Mostly clear
56 °Mostly clear

Harper, Sunday, 18 October

Mostly clear. High 56°, low 35°.

Pressure30.30 inHg
Wind10.9 mph S
Humidity50%
Visibility—
Dew point33°
Mon, 1961° / 42°0Partly cloudy
61 °Partly cloudy

Harper, Monday, 19 October

Partly cloudy. High 61°, low 42°.

Pressure30.30 inHg
Wind9.1 mph S
Humidity45%
Visibility—
Dew point36°
Tue, 2064° / 43°0Clear
64 °Clear

Harper, Tuesday, 20 October

Clear. High 64°, low 43°.

Pressure30.33 inHg
Wind10.1 mph S
Humidity47%
Visibility—
Dew point39°
Wed, 2166° / 45°0Clear
66 °Clear

Harper, Wednesday, 21 October

Clear. High 66°, low 45°.

Pressure30.27 inHg
Wind7.9 mph S
Humidity43%
Visibility—
Dew point38°
Thu, 2266° / 47°0Clear
66 °Clear

Harper, Thursday, 22 October

Clear. High 66°, low 47°.

Pressure30.27 inHg
Wind4.9 mph E
Humidity46%
Visibility—
Dew point41°
Fri, 2365° / 47°0Clear
65 °Clear

Harper, Friday, 23 October

Clear. High 65°, low 47°.

Pressure30.24 inHg
Wind5 mph E
Humidity48%
Visibility—
Dew point41°
Sat, 2465° / 46°0Overcast
65 °Overcast

Harper, Saturday, 24 October

Overcast. High 65°, low 46°.

Pressure30.09 inHg
Wind5.3 mph E
Humidity56%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2558° / 43°0.06Climate normal
58 °Climate normal

Harper, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.06 in
Chance of precipitation27%
Record high77° (2011)
Record low29° (1962)
Mon, 2658° / 42°0.11Climate normal
58 °Climate normal

Harper, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.11 in
Chance of precipitation23%
Record high80° (1963)
Record low23° (1962)
Tue, 2757° / 42°0.06Climate normal
57 °Climate normal

Harper, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.06 in
Chance of precipitation18%
Record high76° (2014)
Record low21° (1997)
Wed, 2856° / 41°0.05Climate normal
56 °Climate normal

Harper, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.05 in
Chance of precipitation22%
Record high77° (2016)
Record low17° (1967)
Thu, 2957° / 41°0.08Climate normal
57 °Climate normal

Harper, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.08 in
Chance of precipitation22%
Record high80° (2024)
Record low19° (1980)
Fri, 3058° / 42°0.09Climate normal
58 °Climate normal

Harper, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation37%
Record high77° (2024)
Record low18° (1980)
Sat, 3156° / 42°0.13Climate normal
56 °Climate normal

Harper, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.13 in
Chance of precipitation33%
Record high76° (1968)
Record low23° (1993)
Sun, 0156° / 41°0.17Climate normal
56 °Climate normal

Harper, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.17 in
Chance of precipitation32%
Record high76° (2000)
Record low22° (2023)
Mon, 0254° / 39°0.09Climate normal
54 °Climate normal

Harper, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation30%
Record high74° (1964)
Record low17° (1991)
Tue, 0354° / 39°0.07Climate normal
54 °Climate normal

Harper, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.07 in
Chance of precipitation23%
Record high74° (1978)
Record low12° (1991)
Wed, 0453° / 39°0.11Climate normal
53 °Climate normal

Harper, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.11 in
Chance of precipitation23%
Record high70° (1978)
Record low11° (1991)
Thu, 0553° / 38°0.07Climate normal
53 °Climate normal

Harper, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (1978)
Record low19° (1991)
Fri, 0653° / 37°0.07Climate normal
53 °Climate normal

Harper, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation23%
Record high71° (2020)
Record low18° (1991)
Sat, 0753° / 37°0.02Climate normal
53 °Climate normal

Harper, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.02 in
Chance of precipitation15%
Record high72° (1966)
Record low6° (1991)

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 Harper, 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 Harper, 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.