Harper, Iowa 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 79°F 26°C Heat Index: 79°F	Observed at: Harper, IA	Elevation: 747 ft | 228 m
	Last Updated: July 25, 8:45 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 79°F | 26°C
	Pressure: 29.02 in | 982.7 mb	Dewpoint: 74°F | 23°C
	Humidity: 84%	Wind: SE 4 mph | SE 6 kph
	Feels Like: 88°F | 31°C	Visibility: 31.4 mi | 50.5 km
	Lat/Long: 41.4 | -92.13	Sunrise: 5:57 AM   Sunset: 8:32 PM

7 Day Graphical Forecast

Valid: 11:00 AM 7/28/2026

Tonight Overcast 68 °F 3% Chance Precipitation Sunday Overcast 101 |73 °F 17% Chance Precipitation Monday Overcast 96 |75 °F 12% Chance Precipitation Tuesday Overcast 88 |72 °F 4% Chance Precipitation Wednesday Clear 90 |70 °F 4% Chance Precipitation Thursday Overcast 84 |67 °F 23% Chance Precipitation Friday Light Drizzle 82 |69 °F 23% Chance Precipitation

7 Hour Graphical Forecast

Valid: 11:00 AM 7/28/2026

11 AM Overcast 86 °F 1% Chance Precipitation

12 PM Overcast 86 °F 1% Chance Precipitation

1 PM Overcast 86 °F 1% Chance Precipitation

2 PM Overcast 88 °F 1% Chance Precipitation

3 PM Overcast 85 °F 1% Chance Precipitation

4 PM Overcast 84 °F 1% Chance Precipitation

5 PM Overcast 87 °F 1% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Harper, IA - (Fahrenheit & Celsius) Valid: 11:00 AM 7/28/2026 Tonight Overcast with a low around 68°F [20°C]. S wind to around 7 mph [11 kph], with gusts to near 19 mph [31 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Sunday Overcast with a high near 101°F [39°C]. SSW wind to around 14 mph [22 kph], with gusts to near 21 mph [33 kph]. Dewpoint near 74°F [23°C] with humidity of 93%. Pressure around 29.02 in [982.7 mb]. UV Index: 7.2. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 73°F [23°C]. SSW wind to around 14 mph [22 kph], with gusts to near 21 mph [33 kph]. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 96°F [36°C]. SSW wind to around 8 mph [12 kph], with gusts to near 16 mph [25 kph]. Dewpoint near 74°F [23°C] with humidity of 87%. Pressure around 29.02 in [982.7 mb]. UV Index: 7.55. Chance of precipitation 12% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 75°F [24°C]. SSW wind to around 8 mph [12 kph], with gusts to near 16 mph [25 kph]. Chance of precipitation 12% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 88°F [31°C]. ENE wind to around 16 mph [25 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 74°F [23°C] with humidity of 92%. Pressure around 29.02 in [982.7 mb]. UV Index: 6.45. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 72°F [22°C]. ENE wind to around 16 mph [25 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Clear with a high near 90°F [32°C]. ESE wind to around 8 mph [13 kph], with gusts to near 19 mph [30 kph]. Dewpoint near 74°F [23°C] with humidity of 94%. Pressure around 29.02 in [982.7 mb]. UV Index: 7.55. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Clear with a low around 70°F [21°C]. ESE wind to around 8 mph [13 kph], with gusts to near 19 mph [30 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 84°F [29°C]. SSE wind to around 13 mph [21 kph], with gusts to near 22 mph [36 kph]. Dewpoint near 74°F [23°C] with humidity of 95%. Pressure around 29.02 in [982.7 mb]. UV Index: 5.15. Chance of precipitation 23% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 67°F [20°C]. SSE wind to around 13 mph [21 kph], with gusts to near 22 mph [36 kph]. Chance of precipitation 23% with QPF of 0.00 in [0.0 mm]. Friday Light Drizzle with a high near 82°F [28°C]. E wind to around 6 mph [10 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 74°F [23°C] with humidity of 92%. Pressure around 29.02 in [982.7 mb]. UV Index: 4.15. Chance of precipitation 23% with QPF of 0.08 in [2.1 mm]. Friday Night Light Drizzle with a low around 69°F [21°C]. E wind to around 6 mph [10 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 23% with QPF of 0.08 in [2.1 mm].

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7 Day and Night - QPF Forecast for Harper, IA

Tonight: 0.0 mm | 0.00 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 2.1 mm | 0.08 in

Friday Night: 2.1 mm | 0.08 in

7 Day and Night - Maximum Wind Speed Forecast for Harper, IA

Tonight: S @ 11 kph | 7 mph

Sunday: SSW @ 22 kph | 14 mph

Sunday Night: SSW @ 22 kph | 14 mph

Monday: SSW @ 12 kph | 8 mph

Monday Night: SSW @ 12 kph | 8 mph

Tuesday: ENE @ 25 kph | 16 mph

Tuesday Night: ENE @ 25 kph | 16 mph

Wednesday: ESE @ 13 kph | 8 mph

Wednesday Night: ESE @ 13 kph | 8 mph

Thursday: SSE @ 21 kph | 13 mph

Thursday Night: SSE @ 21 kph | 13 mph

Friday: E @ 10 kph | 6 mph

Friday Night: E @ 10 kph | 6 mph

7 Day and Night - Maximum Humidity Forecast for Harper, IA

Tonight: 98 %

Sunday: 93 %

Sunday Night: 93 %

Monday: 87 %

Monday Night: 87 %

Tuesday: 92 %

Tuesday Night: 92 %

Wednesday: 94 %

Wednesday Night: 94 %

Thursday: 95 %

Thursday Night: 95 %

Friday: 92 %

Friday Night: 92 %

7 Day and Night - Snowfall Totals Forecast for Harper, IA

Tonight: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

Wednesday: 0.0 cm | 0.00 in

Wednesday Night: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

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