Weather in Castle Rock, CO
Castle Rock, Monday, 19 October, 04:06
Clear. Feels like 43°. High 67°, low 43°.
Monthly outlook for Castle Rock, CO: average high 64.1°, average low 41.6°. That is 3.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 21 October (75.7°), the coolest 28 October (29.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 64.5° | 60.5° | +2.2° |
| 29 October – 7 November | 63.5° | 53.9° | +5.3° |
| 8 November – 17 November | at normal | 51.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stonegate (11 mi).
0
Castle Rock, Tuesday, 20 October
Mostly clear. High 68°, low 48°.
0
Castle Rock, Wednesday, 21 October
Partly cloudy. High 76°, low 41°.
0
Castle Rock, Thursday, 22 October
Overcast. High 75°, low 52°.
0
Castle Rock, Friday, 23 October
Clear. High 75°, low 56°.
0Castle Rock, Saturday, 24 October
Overcast. High 62°, low 42°.
0Castle Rock, Sunday, 25 October
Clear. High 68°, low 37°.
0Castle Rock, Monday, 26 October
Clear. High 64°, low 40°.
0Castle Rock, Tuesday, 27 October
Clear. High 48°, low 33°.
0.02
Castle Rock, Wednesday, 28 October
Snow. High 44°, low 30°.
0Castle Rock, Thursday, 29 October
Clear. High 65°, low 31°.
0Castle Rock, Friday, 30 October
Overcast. High 66°, low 43°.
0Castle Rock, Saturday, 31 October
Overcast. High 66°, low 46°.
0Castle Rock, Sunday, 1 November
Overcast. High 71°, low 48°.
0.14
Castle Rock, Monday, 2 November
Rain. High 56°, low 40°.
0Castle Rock, Tuesday, 3 November
Clear. High 58°, low 36°.
0.02Castle Rock, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.02Castle Rock, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Castle Rock, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Castle Rock, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Castle Rock, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Castle Rock, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Castle Rock, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Castle Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Castle Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Castle Rock, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Castle Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Castle Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Castle Rock, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Castle Rock, Tuesday, 17 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 Castle Rock, CO 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 Castle Rock, CO 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
36°Weather in Annapolis, MD46°Weather in Atlanta, GA46°Weather in Augusta, ME38°Weather in Austin, TX
53°Weather in Baton Rouge, LA52°Weather in Bismarck, ND36°Weather in Boise, ID53°Weather in Boston, MA39°Weather in Carson City, NV50°Weather in Charleston, WV39°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY39°Weather in Columbia, SC43°Weather in Columbus, OH38°Weather in Concord, NH33°Weather in Denver, CO46°Weather in Des Moines, IA45°Weather in Dover, DE41°Weather in Frankfort, KY43°Weather in Harrisburg, PA37°Weather in Hartford, CT38°Weather in Helena, MT37°Weather in Honolulu, HI76°Weather in Indianapolis, IN41°Weather in Jackson, MS51°Weather in Jefferson City, MO39°Weather in Juneau, AK36°Weather in Lansing, MI39°Weather in Lincoln, NE47°Weather in Little Rock, AR47°Weather in Madison, WI45°Weather in Montgomery, AL49°Weather in Montpelier, VT30°Weather in Nashville, TN43°Weather in Oklahoma City, OK51°Weather in Olympia, WA47°Weather in Phoenix, AZ67°Weather in Pierre, SD43°Weather in Providence, RI37°Weather in Raleigh, NC43°Weather in Richmond, VA39°Weather in Sacramento, CA54°Weather in Salem, OR49°Weather in Salt Lake City, UT54°Weather in San Juan, PR76°Weather in Santa Fe, NM45°Weather in Springfield, IL42°Weather in St. Paul, MN46°Weather in Tallahassee, FL55°Weather in Topeka, KS46°Weather in Trenton, NJ38°Weather in Washington, DC42°45°Weather in Wauneta, CO45°Weather in Alvin, CO45°Weather in Griffin, CO47°Weather in Lamb, CO47°Weather in Moseley, CO47°Weather in Pinneo, CO44°Weather in Xenia, CO43°Weather in Calhoun, CO46°Weather in Hyde, CO46°Weather in Adena, CO49°Weather in Gary, CO49°Weather in Rago, CO43°Weather in Schramm, CO47°Weather in Robb, CO46°Weather in Shamrock, CO48°Weather in Elba, CO43°Weather in Beverly Grove, CO41°Weather in Heartstrong, CO41°Weather in Beecher Island, CO46°