Portland, Maine Weather Forecast
Today in Portland: slight rain with a high near 64°F and a low around 44°F. Rain chance 78%. No day tops a 20% rain chance through Thursday. Cooling trend: highs fall from 64°F today to 53°F by Monday.
Forecast updated 10:05 PM EDT, Oct 16
Active Weather Alerts
7-Day Forecast for Portland
Today 10/16
78%
64°44°
Sat 10/17
56°37°
Sun 10/18
51°33°
Mon 10/19
53°37°
Tue 10/20
59°38°
Wed 10/21
55°41°
Thu 10/22
12%
53°38°
Next 24 Hours
| Now | Sat12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  | | | | | | |  | | | | | | | | | | | | | |  | | |
| Temp | 60° | 56° | 52° | 49° | 47° | 45° | 43° | 42° | 42° | 43° | 43° | 44° | 45° | 47° | 48° | 48° | 48° | 48° | 47° | 45° | 43° | 41° | 40° | 39° |
| Rain | 12% | 8% | 4% | 1% | 1% | 1% | 1% | 1% | 2% | 2% | 1% | 2% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Wind | WNW 11 | WNW 11 | WNW 10 | WNW 10 | NW 10 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 13 | NW 14 | NW 15 | NW 15 | NW 15 | NW 15 | NNW 15 | NNW 15 | NNW 13 | NW 12 | NNW 9 | NW 7 | NNW 6 | NW 5 |
Growing Conditions
Growing degree days
2,637
since Apr 1, base 50°F
Rain, last 30 days
1.75 in
model analysis
Rain, year to date
28.17 in
since Jan 1
2-inch soil temperature
54°F
yesterday, daily average
Reference ET, last 7 days
0.55 in
FAO-56 grass reference
Through Oct 15. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Portland →
Current Stats & Observations
NWS Forecast
About Portland Weather
Portland sits at about 0 feet above sea level in Cumberland County, Maine. About 203,969 people live in the Portland area. Official forecasts and warnings for the area come from the National Weather Service GYX office, and the nearest NEXRAD radar site is KGYX. The city is in USDA plant hardiness zone 6a, where the coldest winter night typically falls between -10 to -5°F. Over the past ten years the last spring freeze has come around Apr 12 and the first fall freeze around Nov 6.
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