Rain forecast and rainfall this year
Portland, OR
Rain likely today: 97% chance, about 0.31 inches.
Updated Monday 4:17 PM ET.
Forecast
97 percent chance of rain
TodayHigh 57°, low 46°About 0.31 in of rain
66 percent chance of rain
TomorrowHigh 61°, low 51°About 0.13 in of rain
Today in Portland
This year so far, since Jan 1
20.74 in
−6.60 in below normal for this point in the year (27.34 in).
National rank215th of 363
In Oregon2nd of 6
Biggest day1.73 in, Mar 12
Last measurable rain0.04 in, Nov 8, 2026
Month by month
Jan2.63
Feb4.75
Mar5.03
Apr2.75
May0.65
Jun1.19
Jul0.16
Aug0.04
Sep0.93
Oct2.04
Nov0.57
Dec–
This yearNormal
Records since 1939
Wettest year63.20 in, 1996
Biggest rain day2.69 in, Nov 19, 1996
Nearby cities
- VancouverWA20.74 in this year7 miles
- GreshamOR23.44 in this year11 miles
- HillsboroOR17.89 in this year14 miles
- SalemOR19.55 in this year46 miles
- EugeneOR18.51 in this year105 miles
More Portland weather
Forecast based on National Weather Service forecast data. Rainfall records are from NOAA Regional Climate Centers for the Portland International Airport station, recorded since 1938; normals are NOAA’s 1991–2020 averages. Totals are preliminary. Records are this station’s own and may differ from official NWS city records, which can include earlier locations. Incomplete years and several-day totals are left out. Weather Scoreboard is not affiliated with the National Weather Service or NOAA.