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Portland, Iowa

Current conditions and the National Weather Service 7-day forecast for Portland, Iowa — temperature, rain chance, wind, radar and active alerts.

Saturday Aug 29 night: a low around 69°F. Sunday Aug 30: a high near 89°F and a low around 73°F. The wettest day looks like Monday Aug 31, near 0.06 in. Highs over the period run 86°F to 90°F.

National Weather Service forecast for Portland, Iowa
DayHighLowPrecip
Saturday Aug 2969°
Sunday Aug 3089°73°
Monday Aug 3190°71°0.06 in
Tuesday Sep 188°70°0.01 in
Wednesday Sep 288°68°
Thursday Sep 387°66°
Friday Sep 487°67°
Saturday Sep 586°

NOAA NWS NDFD 2.5 km, run 2026-08-29 23:00 UTC · days are local time in America/Chicago. The live page updates continuously.

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