Rain forecast and rainfall this year
Costa Mesa, CA
No rain expected today.
Updated Monday 3:06 PM ET.
Forecast
0 percent chance of rain
TodayHigh 85°, low 63°No rain expected
0 percent chance of rain
TomorrowHigh 83°, low 63°No rain expected
Today in Costa Mesa
This year so far, since Jan 1
6.40 in
−2.18 in below normal for this point in the year (8.58 in).
National rank330th of 363
In California53rd of 68
Biggest day1.02 in, Feb 16
Last measurable rain0.44 in, Nov 1, 2026
Month by month
Jan1.08
Feb2.14
Mar0.02
Apr0.53
May0.01
Jun0.00
Jul0.00
Aug0.00
Sep0.31
Oct1.87
Nov0.44
Dec–
This yearNormal
Records since 2001
Wettest year24.60 in, 2010
Biggest rain day3.24 in, Dec 6, 2018
Nearby cities
- Santa AnaCA6.40 in this year5 miles
- Huntington BeachCA6.73 in this year6 miles
- IrvineCA6.40 in this year8 miles
- Garden GroveCA6.73 in this year8 miles
- OrangeCA6.40 in this year9 miles
More Costa Mesa weather
Forecast based on National Weather Service forecast data. Rainfall records are from NOAA Regional Climate Centers for the Santa Ana John Wayne Airport station, recorded since 1999; 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.