Portland weather in June: Portland, Maine: normal highs, lows, rain and records for June
Portland in June has a normal high of 74°F and a normal low of 55°F, a daily mean of 64°F, rising from 69°F on the 1st to 78°F by the 30th. Measurable precipitation falls on 12 days in a normal June, 4.15 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 13°C, 105 mm of precipitation in June.
- NOAA stationPortland International Jetport
- Station IDUSW00014764
- Location43.65°N 70.30°W
- Elevation45 ft (14 m)
- From the center6 miles
- Population69,568
- Jan 32° 16°
- Feb 35° 17°
- Mar 42° 26°
- Apr 54° 35°
- May 64° 46°
- Jun 74° 55°
- Jul 80° 61°
- Aug 79° 60°
- Sep 71° 52°
- Oct 60° 41°
- Nov 48° 32°
- Dec 38° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Portland in June?
The normal high is 74°F and the normal low 55°F, for a daily mean of 64.3°F. June is 9.4°F warmer than May and 6.1°F cooler than July. June is the 3rd warmest month of the year in Portland and the 5th wettest. Across the month the normal high rises 9°F, from 69°F on June 1 to 78°F on June 30. From one year to the next June's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Junes in three average between 63°F and 66°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| June 1 | 69°F | 51°F | 39% | 23% |
| June 8 | 71°F | 53°F | 39% | 22% |
| June 15 | 74°F | 55°F | 38% | 22% |
| June 22 | 76°F | 57°F | 37% | 22% |
| June 30 | 78°F | 59°F | 37% | 22% |
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 30, coldest night June 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| June 1 | 69°F | 51°F | 39% | 23% | 15 h 10 min |
| June 2 | 69°F | 51°F | 39% | 23% | 15 h 10 min |
| June 3 | 70°F | 51°F | 39% | 23% | 15 h 10 min |
| June 4 | 70°F | 51°F | 39% | 23% | 15 h 20 min |
| June 5 | 70°F | 52°F | 39% | 23% | 15 h 20 min |
| June 6 | 71°F | 52°F | 39% | 23% | 15 h 20 min |
| June 7 | 71°F | 52°F | 39% | 22% | 15 h 20 min |
| June 8 | 71°F | 53°F | 39% | 22% | 15 h 20 min |
| June 9 | 72°F | 53°F | 39% | 22% | 15 h 20 min |
| June 10 | 72°F | 53°F | 39% | 22% | 15 h 20 min |
| June 11 | 72°F | 54°F | 39% | 22% | 15 h 20 min |
| June 12 | 73°F | 54°F | 38% | 22% | 15 h 20 min |
| June 13 | 73°F | 54°F | 38% | 22% | 15 h 20 min |
| June 14 | 73°F | 55°F | 38% | 22% | 15 h 20 min |
| June 15 | 74°F | 55°F | 38% | 22% | 15 h 20 min |
| June 16 | 74°F | 55°F | 38% | 22% | 15 h 30 min |
| June 17 | 74°F | 56°F | 38% | 22% | 15 h 30 min |
| June 18 | 75°F | 56°F | 38% | 22% | 15 h 30 min |
| June 19 | 75°F | 56°F | 38% | 22% | 15 h 30 min |
| June 20 | 75°F | 57°F | 38% | 22% | 15 h 30 min |
| June 21 | 76°F | 57°F | 37% | 22% | 15 h 30 min |
| June 22 | 76°F | 57°F | 37% | 22% | 15 h 30 min |
| June 23 | 76°F | 57°F | 37% | 22% | 15 h 30 min |
| June 24 | 76°F | 58°F | 37% | 22% | 15 h 30 min |
| June 25 | 77°F | 58°F | 37% | 22% | 15 h 30 min |
| June 26 | 77°F | 58°F | 37% | 22% | 15 h 30 min |
| June 27 | 77°F | 59°F | 37% | 22% | 15 h 30 min |
| June 28 | 77°F | 59°F | 37% | 22% | 15 h 30 min |
| June 29 | 78°F | 59°F | 37% | 22% | 15 h 20 min |
| June 30 | 78°F | 59°F | 37% | 22% | 15 h 20 min |
- Normal high
- 74°FJune average
- Normal low
- 55°FJune average
- Precipitation
- 4.15 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 15 h 10 min to 15 h 20 minJune 1 to June 30
- Days at 70°F or more
- 21
- Days at 80°F or more
- 7
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014764; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Portland in June?
On a given June day the chance of 0.01 inch or more is 38% on average, highest around June 1 (39%). In all, 4.15 in falls on 12 days of a normal June, 1 of them with an inch or more.
In a normal June in Portland, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014764.
How humid and windy is Portland in June?
At 3 p.m. the normal temperature is 74°F with 58% relative humidity and a dew point of 59°F; at 6 a.m. it is 64°F with 83% humidity. The wind averages 6.9 mph, most often from the south in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 64°F | 58°F | 83% | 4.9 mph | – |
| 9 a.m. | 72°F | 59°F | 65% | 7.6 mph | 58% |
| noon | 75°F | 59°F | 58% | 10.0 mph | – |
| 3 p.m. | 74°F | 59°F | 58% | 10.8 mph | 47% |
| 6 p.m. | 71°F | 58°F | 64% | 8.4 mph | 53% |
| 9 p.m. | 66°F | 58°F | 76% | 5.3 mph | 59% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014764. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for June in Portland?
The warmest June temperature on Portland's official record (since 1874) is 99°F, on June 24, 2025; the coldest is 33°F, on June 4, 1944. The wettest June brought 10.86 in (1917).
The June mean against the 1991-2020 normal of 64.3°F: 2021 68.9°F (+4.6), 2022 62.9°F (−1.4), 2023 61.3°F (−3.0), 2024 66.1°F (+1.8), 2025 64.7°F (+0.4), 2026 66.4°F (+2.1). 4 of 6 ran warmer than normal.
| June | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 68.9°F | +4.6°F | 0.95 in |
| 2022 | 62.9°F | −1.4°F | 2.62 in |
| 2023 | 61.3°F | −3.0°F | 5.68 in |
| 2024 | 66.1°F | +1.8°F | 3.57 in |
| 2025 | 64.7°F | +0.4°F | 2.19 in |
| 2026 | 66.4°F | +2.1°F | 5.31 in |
Source: records: ACIS, NWS threaded record PWMthr; recent months: ACIS, station USW00014764. Records and recent months use complete months only.
How does June in Portland compare across Maine?
Across the 42 places PlainClimate covers in Maine, June normal highs run from 69°F in Eastport to 77°F in Fryeburg; Portland's is 74°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.