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Portland Weather Warning NWS WEATHER ALERT FOR THE PORTLAND, IA AREA - Issued: 333 AM CDT Tue Aug 4 2026 Portland Weather Warning

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Portland, IA Weather - Hour by Hour Forecast

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Portland, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Thunder. Temperature is 70°F21°C, dew point 67°F19°C, humidity 90%. Wind direction is WSW at 13 mph21 km/h with visibility of 10 mi16 km. Barometric pressure is 29.97 in1015 mb.
Today - Mostly cloudy. A chance of showers and thunderstorms early, then showers and thunderstorms likely this morning. A chance of shower.. Full Forecast
Tonight - Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the mid 50s. Northwest winds around 5 mph. Ch.. Full Forecast

Portland Hourly Weather

24 Hour Forecast Scroll
Tue, Aug 04
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Portland, IA Hourly Weather - Cloudy - 6:00 AM Portland, IA Hourly Weather - Cloudy - 7:00 AM Portland, IA Hourly Weather - Cloudy - 8:00 AM Portland, IA Hourly Weather - Cloudy - 9:00 AM Portland, IA Hourly Weather - Cloudy - 10:00 AM Portland, IA Hourly Weather - Cloudy - 11:00 AM Portland, IA Hourly Weather - Cloudy - 12:00 PM Portland, IA Hourly Weather - Cloudy - 1:00 PM Portland, IA Hourly Weather - Cloudy - 2:00 PM Portland, IA Hourly Weather - Cloudy - 3:00 PM Portland, IA Hourly Weather - Cloudy - 4:00 PM Portland, IA Hourly Weather - Cloudy - 5:00 PM Portland, IA Hourly Weather - Cloudy - 6:00 PM Portland, IA Hourly Weather - Cloudy - 7:00 PM Portland, IA Hourly Weather - Cloudy - 8:00 PM Portland, IA Hourly Weather - Cloudy - 9:00 PM Portland, IA Hourly Weather - Cloudy - 10:00 PM Portland, IA Hourly Weather - Cloudy - 11:00 PM Portland, IA Hourly Weather - Cloudy - 12:00 AM Portland, IA Hourly Weather - Cloudy - 1:00 AM Portland, IA Hourly Weather - Cloudy - 2:00 AM Portland, IA Hourly Weather - Mostly Cloudy - 3:00 AM Portland, IA Hourly Weather - Mostly Cloudy - 4:00 AM Portland, IA Hourly Weather - Mostly Cloudy - 5:00 AM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
66°F19°C 66°F19°C 67°F19°C 69°F21°C 70°F21°C 71°F22°C 72°F22°C 73°F23°C 73°F23°C 74°F23°C 74°F23°C 73°F23°C 73°F23°C 72°F22°C 69°F21°C 66°F19°C 63°F17°C 62°F17°C 62°F17°C 61°F16°C 60°F16°C 59°F15°C 58°F14°C 58°F14°C
- - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - -
17% 17% 22% 22% 22% 22% 22% 22% 23% 23% 23% 23% 23% 23% 30% 30% 30% 30% 30% 30% 12% 12% 12% 12%
64°F18°C 64°F18°C 64°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 63°F17°C 62°F17°C 62°F17°C 61°F16°C 61°F16°C 60°F16°C 59°F15°C 58°F14°C 57°F14°C 57°F14°C
93% 93% 90% 87% 84% 81% 79% 76% 76% 71% 71% 73% 71% 73% 81% 87% 97% 97% 97% 97% 96% 96% 96% 96%
SSW SSW W NW NW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NW NW NNW
7 mph 7 mph 7 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KMCW model statistics.

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Prob Precip % = Probability of Precipitation.

Portland 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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