Portland Weather Forecast 15 Days, Weather in Portland Today
Current weather conditions and 15 day weather forecast for Portland, Iowa, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Portland
| 18 December 2025 Thursday -12.2 ° C / 10°F  Light snow |
Feels Like : -23.4 ° C / -10.2°F Humidity : % 73 Pressure : 1002 mb Wind Speed : 37.8 kmph / 23.5 miles from NW  Visibility : 4.8 km Precipitation (rainfall) : 0.23 mm Cloud (%) : 100 |
15 day weather forecast for Portland, IA, USA
Weather Forecast for next 15 Days for Portland including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Portland, Iowa state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday | Light snow |
-12.8 ° C (9°F) |
3.9 ° C (39°F) |
-2.6 ° C (27.4°F) |
% 82 | 81% | 0.2 | Sunrise:07:41 AM Sunset: 04:40 PM |
Moonrise:06:48 AM Moonset: 03:14 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Cloudy |
-15 ° C (5°F) |
-7.2 ° C (19.1°F) |
-11.2 ° C (11.8°F) |
% 80 | 0% | 0.2 | Sunrise:07:41 AM Sunset: 04:40 PM |
Moonrise:07:47 AM Moonset: 04:01 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Mist |
-6 ° C (21.3°F) |
-2.1 ° C (28.2°F) |
-4.2 ° C (24.5°F) |
% 88 | 0% | 0.2 | Sunrise:07:42 AM Sunset: 04:41 PM |
Moonrise:08:38 AM Moonset: 04:57 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Moderate or heavy snow showers |
-5.1 ° C (22.8°F) |
-2.1 ° C (28.2°F) |
-3.8 ° C (25.2°F) |
% 76 | 74% | 0.2 | Sunrise:07:42 AM Sunset: 04:41 PM |
Moonrise:09:21 AM Moonset: 06:00 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Light freezing rain |
-4.8 ° C (23.3°F) |
2.6 ° C (36.7°F) |
-1.8 ° C (28.8°F) |
% 77 | 60% | 0 | Sunrise:07:43 AM Sunset: 04:42 PM |
Moonrise:09:56 AM Moonset: 07:08 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Partly Cloudy |
-0.4 ° C (31.3°F) |
4.1 ° C (39.4°F) |
1.5 ° C (34.7°F) |
% 89 | 0% | 2 | Sunrise:07:43 AM Sunset: 04:42 PM |
Moonrise:10:24 AM Moonset: 08:16 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Overcast |
1.9 ° C (35.3°F) |
3.4 ° C (38.2°F) |
3.1 ° C (37.6°F) |
% 98 | 0% | 1 | Sunrise:07:44 AM Sunset: 04:43 PM |
Moonrise:10:49 AM Moonset: 09:26 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Sunny |
-0.6 ° C (30.8°F) |
4.2 ° C (39.5°F) |
2.1 ° C (35.8°F) |
% 78 | 0% | 2 | Sunrise:07:44 AM Sunset: 04:43 PM |
Moonrise:11:10 AM Moonset: 10:35 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
-2.7 ° C (27.2°F) |
0.6 ° C (33°F) |
-0.5 ° C (31.1°F) |
% 60 | 0% | 2 | Sunrise:07:44 AM Sunset: 04:44 PM |
Moonrise:11:30 AM Moonset: 11:45 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
-6 ° C (21.2°F) |
3.3 ° C (37.9°F) |
-1.7 ° C (28.9°F) |
% 61 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:45 PM |
Moonrise:11:50 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
-10.4 ° C (13.3°F) |
-7.3 ° C (18.8°F) |
-8.9 ° C (16°F) |
% 55 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:46 PM |
Moonrise:12:11 PM Moonset: 12:57 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-12.4 ° C (9.7°F) |
-6.7 ° C (19.9°F) |
-10 ° C (14.1°F) |
% 46 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:46 PM |
Moonrise:12:36 PM Moonset: 02:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-9.2 ° C (15.5°F) |
-1.3 ° C (29.7°F) |
-5.8 ° C (21.5°F) |
% 32 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:47 PM |
Moonrise:01:08 PM Moonset: 03:33 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-6 ° C (21.2°F) |
-0 ° C (32°F) |
-3.6 ° C (25.6°F) |
% 33 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:48 PM |
Moonrise:01:48 PM Moonset: 04:54 AM Moon Phase ( Waxing Gibbous ) |
|
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