Weather in San Mateo, CA
San Mateo, Friday, 30 October, 19:24
Clear. Feels like 58°. High 69°, low 53°.
Monthly outlook for San Mateo, CA: average high 64.1°, average low 54.4°. That is 0.3° below the climate normal for October. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 30 October (69.4°), the coolest 1 November (45.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 65.1° | 65.8° | -0.4° |
| 9 November – 18 November | 62.4° | 62.5° | -0° |
| 19 November – 28 November | at normal | 59.7° | — |
October records over 66 years
0
San Mateo, Saturday, 31 October
Overcast. High 65°, low 47°.
0.07
San Mateo, Sunday, 1 November
Light rain. High 61°, low 45°.
0San Mateo, Monday, 2 November
Overcast. High 65°, low 52°.
0.15San Mateo, Tuesday, 3 November
Light rain. High 62°, low 54°.
0
San Mateo, Wednesday, 4 November
Clear. High 64°, low 53°.
0San Mateo, Thursday, 5 November
Overcast. High 65°, low 55°.
0.01San Mateo, Friday, 6 November
Light rain. High 65°, low 58°.
0
San Mateo, Saturday, 7 November
Mostly clear. High 67°, low 57°.
0San Mateo, Sunday, 8 November
Overcast. High 68°, low 58°.
0San Mateo, Monday, 9 November
Overcast. High 66°, low 59°.
0.27San Mateo, Tuesday, 10 November
Light rain. High 64°, low 59°.
0.37San Mateo, Wednesday, 11 November
Rain. High 62°, low 56°.
0San Mateo, Thursday, 12 November
Overcast. High 60°, low 53°.
0.15San Mateo, Friday, 13 November
Light rain. High 62°, low 56°.
0.88San Mateo, Saturday, 14 November
Heavy rain. High 59°, low 54°.
0.07San Mateo, Sunday, 15 November
Climate normal for this date — 60-year average.
0.1
San Mateo, Monday, 16 November
Climate normal for this date — 60-year average.
0.12San Mateo, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06San Mateo, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04San Mateo, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1San Mateo, Friday, 20 November
Climate normal for this date — 60-year average.
0.08San Mateo, Saturday, 21 November
Climate normal for this date — 60-year average.
0.08San Mateo, Sunday, 22 November
Climate normal for this date — 60-year average.
0.05San Mateo, Monday, 23 November
Climate normal for this date — 60-year average.
0.08San Mateo, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06San Mateo, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.08San Mateo, Thursday, 26 November
Climate normal for this date — 60-year average.
0.07San Mateo, Friday, 27 November
Climate normal for this date — 60-year average.
0.11San Mateo, Saturday, 28 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for San Mateo, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in San Mateo, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
49°Weather in Annapolis, MD60°Weather in Atlanta, GA
66°Weather in Augusta, ME48°Weather in Austin, TX
65°Weather in Baton Rouge, LA71°Weather in Bismarck, ND43°Weather in Boise, ID51°Weather in Boston, MA51°Weather in Carson City, NV48°Weather in Charleston, WV50°Weather in Charlotte Amalie, VI82°Weather in Cheyenne, WY46°Weather in Columbia, SC62°Weather in Columbus, OH53°Weather in Concord, NH50°Weather in Denver, CO54°Weather in Des Moines, IA56°Weather in Dover, DE59°Weather in Frankfort, KY54°Weather in Harrisburg, PA49°Weather in Hartford, CT50°Weather in Helena, MT37°Weather in Honolulu, HI80°Weather in Indianapolis, IN56°Weather in Jackson, MS73°Weather in Jefferson City, MO70°Weather in Juneau, AK30°Weather in Lansing, MI40°Weather in Lincoln, NE62°Weather in Little Rock, AR68°Weather in Madison, WI51°Weather in Montgomery, AL65°Weather in Montpelier, VT46°Weather in Nashville, TN69°Weather in Oklahoma City, OK65°Weather in Olympia, WA45°Weather in Phoenix, AZ67°Weather in Pierre, SD55°Weather in Providence, RI52°Weather in Raleigh, NC60°Weather in Richmond, VA61°Weather in Sacramento, CA64°Weather in Salem, OR47°Weather in Salt Lake City, UT50°Weather in San Juan, PR80°Weather in Santa Fe, NM52°Weather in Springfield, IL55°Weather in St. Paul, MN53°Weather in Tallahassee, FL74°Weather in Topeka, KS66°Weather in Trenton, NJ51°Weather in Washington, DC60°70°Weather in Posey, CA52°Weather in Poso Park, CA51°Weather in Seville, CA68°Weather in Silver City, CA43°Weather in Sultana, CA68°Weather in Tonyville, CA66°Weather in Waukena, CA68°Weather in Wilsonia, CA39°Weather in Yettem, CA69°Weather in Lytle Creek, CA49°Weather in Oak Glen, CA47°Weather in Oak Hills, CA51°Weather in Silver Lakes, CA57°Weather in Spring Valley Lake, CA55°Weather in Edna, CA63°Weather in Garden Farms, CA59°Weather in Los Berros, CA63°Weather in San Simeon, CA63°Weather in Santa Margarita, CA59°