Weather in Alto, CA
Alto, Friday, 16 October, 03:39
Clear. Feels like 64°. High 89°, low 59°.
Monthly outlook for Alto, CA: average high 64.7°, average low 53.2°. That is 1.9° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 16 October (89°), the coolest 21 October (48.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 66.9° | 68.9° | -1.2° |
| 26 October – 4 November | 61.1° | 66.4° | -3° |
| 5 November – 14 November | at normal | 63° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Marin City (2 mi).
0
Alto, Saturday, 17 October
Clear. High 88°, low 56°.
0
Alto, Sunday, 18 October
Mostly clear. High 67°, low 52°.
0.01
Alto, Monday, 19 October
Light rain. High 60°, low 50°.
0.13Alto, Tuesday, 20 October
Light rain. High 59°, low 50°.
0
Alto, Wednesday, 21 October
Overcast. High 64°, low 49°.
0Alto, Thursday, 22 October
Overcast. High 60°, low 53°.
0Alto, Friday, 23 October
Overcast. High 58°, low 53°.
0Alto, Saturday, 24 October
Clear. High 62°, low 54°.
0Alto, Sunday, 25 October
Overcast. High 62°, low 54°.
0Alto, Monday, 26 October
Overcast. High 63°, low 55°.
0Alto, Tuesday, 27 October
Overcast. High 61°, low 55°.
0Alto, Wednesday, 28 October
Clear. High 63°, low 50°.
0Alto, Thursday, 29 October
Overcast. High 60°, low 52°.
0Alto, Friday, 30 October
Overcast. High 62°, low 54°.
0Alto, Saturday, 31 October
Overcast. High 58°, low 54°.
0.06Alto, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Alto, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Alto, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Alto, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Alto, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07
Alto, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Alto, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08Alto, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Alto, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Alto, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Alto, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08Alto, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14Alto, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Alto, Saturday, 14 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 Alto, 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 Alto, 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
54°Weather in Annapolis, MD62°Weather in Atlanta, GA66°Weather in Augusta, ME41°Weather in Austin, TX67°Weather in Baton Rouge, LA67°Weather in Bismarck, ND38°Weather in Boise, ID50°Weather in Boston, MA53°Weather in Carson City, NV45°Weather in Charleston, WV71°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY29°Weather in Columbia, SC65°Weather in Columbus, OH71°Weather in Concord, NH46°Weather in Denver, CO38°Weather in Des Moines, IA48°Weather in Dover, DE62°Weather in Frankfort, KY68°Weather in Harrisburg, PA60°Weather in Hartford, CT55°Weather in Helena, MT30°Weather in Honolulu, HI76°Weather in Indianapolis, IN57°Weather in Jackson, MS65°Weather in Jefferson City, MO50°Weather in Juneau, AK45°Weather in Lansing, MI57°Weather in Lincoln, NE48°Weather in Little Rock, AR66°Weather in Madison, WI49°Weather in Montgomery, AL61°Weather in Montpelier, VT45°Weather in Nashville, TN71°Weather in Oklahoma City, OK52°Weather in Olympia, WA44°Weather in Phoenix, AZ74°Weather in Pierre, SD43°Weather in Providence, RI55°Weather in Raleigh, NC67°Weather in Richmond, VA65°Weather in Sacramento, CA57°Weather in Salem, OR49°Weather in Salt Lake City, UT48°Weather in San Juan, PR77°Weather in Santa Fe, NM36°Weather in Springfield, IL52°Weather in St. Paul, MN47°Weather in Tallahassee, FL65°Weather in Topeka, KS45°Weather in Trenton, NJ59°Weather in Washington, DC62°51°Weather in Aptos Hills-Larkin Valley, CA60°Weather in Arden-Arcade, CA56°Weather in Bertsch-Oceanview, CA46°Weather in Black Point-Green Point, CA65°Weather in Bret Harte, CA55°Weather in Florence-Graham, CA75°Weather in North Lakeport, CA60°Weather in Sunnyside-Tahoe City, CA36°Weather in San Buenaventura, CA78°Weather in Westlake Village, CA79°Weather in Gold Mountain, CA44°Weather in McClellan Park, CA54°Weather in McSwain, CA54°Weather in Monument Hills, CA62°Weather in Norris Canyon, CA62°Weather in North Shore, CA76°Weather in Warner Valley, CA41°Weather in Woodlands, CA68°Weather in Bell Canyon, CA79°