Portland, ME Hourly Forecast
Portland temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 2 PM - around 83°
- Coolest hour: 4 AM - around 68°
- Highest rain chance: 12 AM (27%) - pack accordingly
- UV peak: 1 PM at index 6 - sun protection recommended
- Windiest: 3 PM at 14 mph
Portland hourly weather - Wednesday, August 26
In Portland, expect a high near 83°F (28°C) around 2 PM and a low of 68°F (20°C) near 9 PM; precipitation risk peaks at 25% around 10 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 10 AM | Sunny | 75° | 76° | 2% | 2 mph S | 53% | 4 | |
| 11 AM | Sunny | 78° | 77° | 2% | 6 mph S | 53% | 5 | |
| 12 PM | Sunny | 78° | 76° | 2% | 10 mph S | 52% | 6 | |
| 1 PM | Sunny | 80° | 79° | 2% | 12 mph S | 50% | 6 | |
| 2 PM | Sunny | 83° | 83° | 2% | 13 mph S | 49% | 6 | |
| 3 PM | Sunny | 82° | 83° | 2% | 14 mph S | 49% | 4 | |
| 4 PM | Sunny | 80° | 81° | 2% | 13 mph S | 50% | 3 | |
| 5 PM | Sunny | 70° | 66° | 6% | 13 mph S | 70% | 1 | |
| 6 PM | Sunny | 70° | 67° | 7% | 12 mph S | 73% | 0 | |
| 7 PM | Sunny | 69° | 66° | 9% | 11 mph SSW | 77% | 0 | |
| 8 PM | Clear | 68° | 66° | 9% | 11 mph SSW | 80% | 0 | |
| 9 PM | Clear | 68° | 66° | 11% | 10 mph SSW | 82% | 0 | |
| 10 PM | Overcast | 68° | 67° | 25% | 9 mph SSW | 82% | 0 | |
| 11 PM | Cloudy | 68° | 68° | 22% | 8 mph SSW | 85% | 0 |
Portland hourly weather - Thursday, August 27
In Portland, expect a high near 72°F (22°C) around 3 PM and a low of 68°F (20°C) near 4 AM; precipitation risk peaks at 75% around 9 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Overcast | 68° | 68° | 27% | 8 mph SSW | 86% | 0 | |
| 1 AM | Overcast | 68° | 68° | 26% | 8 mph SSW | 84% | 0 | |
| 2 AM | Overcast | 68° | 68° | 27% | 7 mph SSW | 85% | 0 | |
| 3 AM | Overcast | 68° | 69° | 27% | 6 mph S | 86% | 0 | |
| 4 AM | Overcast | 68° | 69° | 27% | 6 mph S | 86% | 0 | |
| 5 AM | Overcast | 68° | 69° | 27% | 6 mph SSW | 86% | 0 | |
| 6 AM | Overcast | 68° | 68° | 26% | 7 mph SSW | 84% | 0 | |
| 7 AM | Overcast | 68° | 68° | 24% | 8 mph SW | 81% | 0 | |
| 8 AM | Overcast | 68° | 66° | 22% | 9 mph SSW | 78% | 1 | |
| 9 AM | Cloudy | 68° | 66° | 15% | 10 mph SSW | 75% | 2 | |
| 10 AM | Partly Cloudy | 69° | 67° | 13% | 10 mph SSW | 75% | 4 | |
| 11 AM | Sunny | 69° | 66° | 8% | 13 mph S | 76% | 5 | |
| 12 PM | Sunny | 69° | 65° | 9% | 14 mph S | 80% | 5 | |
| 1 PM | Partly Cloudy | 69° | 66° | 16% | 14 mph S | 82% | 5 | |
| 2 PM | Cloudy | 70° | 67° | 17% | 14 mph SSE | 81% | 4 | |
| 3 PM | Overcast | 72° | 68° | 21% | 15 mph SSE | 77% | 4 | |
| 4 PM | Overcast | 71° | 66° | 23% | 17 mph SSE | 79% | 3 | |
| 5 PM | Overcast | 71° | 66° | 22% | 18 mph S | 78% | 1 | |
| 6 PM | Patchy rain nearby | 72° | 66° | 22% | 19 mph S | 76% | 0 | |
| 7 PM | Overcast | 72° | 65° | 21% | 20 mph S | 75% | 0 | |
| 8 PM | Light rain shower | 69° | 65° | 63% | 17 mph SSW | 88% | 0 | |
| 9 PM | Light rain shower | 69° | 66° | 75% | 16 mph SSW | 88% | 0 | |
| 10 PM | Light rain shower | 70° | 65° | 75% | 18 mph SSW | 89% | 0 | |
| 11 PM | Patchy rain nearby | 69° | 66° | 33% | 17 mph SSW | 91% | 0 |
Portland hourly weather - Friday, August 28
In Portland, expect a high near 71°F (22°C) around 2 PM and a low of 67°F (19°C) near 8 PM; precipitation risk peaks at 77% around 3 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Overcast | 69° | 66° | 31% | 16 mph SSW | 92% | 0 | |
| 1 AM | Overcast | 69° | 66° | 32% | 15 mph SSW | 93% | 0 | |
| 2 AM | Cloudy | 69° | 66° | 26% | 15 mph SSW | 94% | 0 | |
| 3 AM | Patchy rain nearby | 68° | 68° | 34% | 12 mph SSW | 94% | 0 | |
| 4 AM | Overcast | 68° | 68° | 33% | 10 mph SSW | 94% | 0 | |
| 5 AM | Overcast | 68° | 68° | 32% | 10 mph SSW | 94% | 0 | |
| 6 AM | Patchy rain nearby | 68° | 68° | 35% | 10 mph SSW | 95% | 0 | |
| 7 AM | Overcast | 68° | 68° | 33% | 10 mph SSW | 96% | 0 | |
| 8 AM | Light rain shower | 68° | 69° | 72% | 10 mph SSW | 95% | 0 | |
| 9 AM | Thundery outbreaks in nearby | 69° | 70° | 32% | 9 mph SW | 93% | 5 | |
| 10 AM | Light rain shower | 69° | 70° | 59% | 9 mph SSW | 93% | 5 | |
| 11 AM | Light rain shower | 70° | 72° | 53% | 9 mph SSW | 88% | 5 | |
| 12 PM | Light rain shower | 70° | 71° | 57% | 10 mph S | 89% | 5 | |
| 1 PM | Patchy rain nearby | 70° | 70° | 46% | 11 mph S | 90% | 5 | |
| 2 PM | Light rain shower | 71° | 72° | 61% | 10 mph S | 88% | 5 | |
| 3 PM | Moderate or heavy rain shower | 70° | 72° | 77% | 10 mph SSW | 93% | 5 | |
| 4 PM | Fog | 67° | 70° | 46% | 6 mph S | 99% | 4 | |
| 5 PM | Fog | 68° | 71° | 43% | 6 mph SSW | 98% | 4 | |
| 6 PM | Fog | 68° | 71° | 46% | 5 mph SSW | 98% | 4 | |
| 7 PM | Fog | 67° | 70° | 43% | 6 mph SSW | 98% | 4 | |
| 8 PM | Fog | 67° | 69° | 48% | 6 mph SSW | 99% | 0 | |
| 9 PM | Fog | 67° | 69° | 43% | 7 mph SSW | 99% | 0 | |
| 10 PM | Fog | 67° | 69° | 43% | 7 mph WSW | 98% | 0 | |
| 11 PM | Patchy rain nearby | 67° | 68° | 35% | 8 mph NW | 96% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Portland today?
Will it rain in Portland tonight?
When is the UV index highest in Portland today?
Portland hour-by-hour: what to expect
Over the next 24 hours in Portland, temperatures range from 68°F (20°C) around 4 AM up to 83°F (28°C) near 2 PM - about 6°F (3°C) above the typical August high of 77°F (25°C).
A stray shower can't be ruled out - Rain chances top out at 27% around 12 AM. UV reaches 6 (1 PM) - sun protection recommended through midday.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the Portland 14-day forecast or the monthly climate averages.