Barnum, Iowa 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 87°F 31°C Heat Index: 92°F	Observed at: Barnum, IA	Elevation: 1022 ft | 312 m
	Last Updated: July 27, 8:00 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 87°F | 31°C
	Pressure: 28.56 in | 967.1 mb	Dewpoint: 70°F | 21°C
	Humidity: 58%	Wind: NW 5 mph | NW 8 kph
	Feels Like: 93°F | 34°C	Visibility: 54.6 mi | 87.9 km
	Lat/Long: 42.4116 | -94.2438	Sunrise: 6:04 AM   Sunset: 8:42 PM

7 Day Graphical Forecast

Valid: 11:18 AM 7/28/2026

Today Overcast 95 |77 °F 35 |25 °C 13% Chance Precipitation Tuesday Overcast 88 |71 °F 31 |22 °C 5% Chance Precipitation Wednesday Overcast 93 |70 °F 34 |21 °C 5% Chance Precipitation Thursday Light Showers 77 |65 °F 25 |19 °C 47% Chance Precipitation Friday Showers 68 |63 °F 20 |17 °C 69% Chance Precipitation Saturday Light Drizzle 84 |60 °F 29 |15 °C 23% Chance Precipitation Sunday Clear 85 |64 °F 30 |18 °C 4% Chance Precipitation

7 Hour Graphical Forecast

Valid: 11:18 AM 7/28/2026

11 AM Overcast 80 °F 5% Chance Precipitation

12 PM Mostly Clear 83 °F 4% Chance Precipitation

1 PM Overcast 85 °F 4% Chance Precipitation

2 PM Overcast 84 °F 3% Chance Precipitation

3 PM Overcast 84 °F 2% Chance Precipitation

4 PM Clear 87 °F 2% Chance Precipitation

5 PM Clear 88 °F 2% Chance Precipitation

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

7 Day & Night Weather Forecast for Barnum, IA - (Fahrenheit & Celsius) Valid: 11:18 AM 7/28/2026 Today Overcast with a high near 95°F [35°C]. WNW wind to around 10 mph [15 kph], with gusts to near 21 mph [33 kph]. Dewpoint near 70°F [21°C] with humidity of 92%. Pressure around 28.56 in [967.1 mb]. UV Index: 7.7. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Tonight Overcast with a low around 77°F [25°C]. WNW wind to around 10 mph [15 kph], with gusts to near 21 mph [33 kph]. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 88°F [31°C]. ENE wind to around 7 mph [11 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 70°F [21°C] with humidity of 92%. Pressure around 28.56 in [967.1 mb]. UV Index: 3.9. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 71°F [22°C]. ENE wind to around 7 mph [11 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 93°F [34°C]. SSE wind to around 14 mph [22 kph], with gusts to near 23 mph [37 kph]. Dewpoint near 70°F [21°C] with humidity of 81%. Pressure around 28.56 in [967.1 mb]. UV Index: 7.6. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 70°F [21°C]. SSE wind to around 14 mph [22 kph], with gusts to near 23 mph [37 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Thursday Light Showers with a high near 77°F [25°C]. SSE wind to around 14 mph [23 kph], with gusts to near 33 mph [53 kph]. Dewpoint near 70°F [21°C] with humidity of 95%. Pressure around 28.56 in [967.1 mb]. UV Index: 2.4. Chance of precipitation 47% with QPF of 0.32 in [8.0 mm]. Thursday Night Light Showers with a low around 65°F [19°C]. SSE wind to around 14 mph [23 kph], with gusts to near 33 mph [53 kph]. Chance of precipitation 47% with QPF of 0.32 in [8.0 mm]. Friday Showers with a high near 68°F [20°C]. E wind to around 15 mph [23 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 70°F [21°C] with humidity of 99%. Pressure around 28.56 in [967.1 mb]. UV Index: 1.25. Chance of precipitation 69% with QPF of 0.89 in [22.7 mm]. Friday Night Showers with a low around 63°F [17°C]. E wind to around 15 mph [23 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 69% with QPF of 0.89 in [22.7 mm]. Saturday Light Drizzle with a high near 84°F [29°C]. NNE wind to around 9 mph [15 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 70°F [21°C] with humidity of 97%. Pressure around 28.56 in [967.1 mb]. UV Index: 7.25. Chance of precipitation 23% with QPF of 0.06 in [1.5 mm]. Saturday Night Light Drizzle with a low around 60°F [15°C]. NNE wind to around 9 mph [15 kph], with gusts to near 14 mph [23 kph]. Chance of precipitation 23% with QPF of 0.06 in [1.5 mm]. Sunday Clear with a high near 85°F [30°C]. ESE wind to around 10 mph [16 kph], with gusts to near 23 mph [37 kph]. Dewpoint near 70°F [21°C] with humidity of 94%. Pressure around 28.56 in [967.1 mb]. UV Index: 7.4. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Sunday Night Clear with a low around 64°F [18°C]. ESE wind to around 10 mph [16 kph], with gusts to near 23 mph [37 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Barnum, IA

Today: 0.0 mm | 0.00 in

Tonight: 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: 8.0 mm | 0.32 in

Thursday Night: 8.0 mm | 0.32 in

Friday: 22.7 mm | 0.89 in

Friday Night: 22.7 mm | 0.89 in

Saturday: 1.5 mm | 0.06 in

Saturday Night: 1.5 mm | 0.06 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

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

Today: WNW @ 15 kph | 10 mph

Tonight: WNW @ 15 kph | 10 mph

Tuesday: ENE @ 11 kph | 7 mph

Tuesday Night: ENE @ 11 kph | 7 mph

Wednesday: SSE @ 22 kph | 14 mph

Wednesday Night: SSE @ 22 kph | 14 mph

Thursday: SSE @ 23 kph | 14 mph

Thursday Night: SSE @ 23 kph | 14 mph

Friday: E @ 23 kph | 15 mph

Friday Night: E @ 23 kph | 15 mph

Saturday: NNE @ 15 kph | 9 mph

Saturday Night: NNE @ 15 kph | 9 mph

Sunday: ESE @ 16 kph | 10 mph

Sunday Night: ESE @ 16 kph | 10 mph

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

Today: 92 %

Tonight: 92 %

Tuesday: 92 %

Tuesday Night: 92 %

Wednesday: 81 %

Wednesday Night: 81 %

Thursday: 95 %

Thursday Night: 95 %

Friday: 99 %

Friday Night: 99 %

Saturday: 97 %

Saturday Night: 97 %

Sunday: 94 %

Sunday Night: 94 %

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

Today: 0.0 cm | 0.00 in

Tonight: 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

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

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