Weather in Keystone, CO
Keystone, Wednesday, 7 October, 20:22
Partly cloudy. Feels like 40°. High 65°, low 41°.
Monthly outlook for Keystone, CO: average high 53.4°, average low 32.3°. That is 4° above the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (67.5°), the coolest 17 October (9.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 57.4° | 47.2° | +5.7° |
| 17 October – 26 October | 46.6° | 43.5° | +1.7° |
| 27 October – 5 November | at normal | 38.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Montezuma (4 mi).
0
Keystone, Thursday, 8 October
Light rain. High 66°, low 42°.
0Keystone, Friday, 9 October
Light rain. High 68°, low 42°.
0.16Keystone, Saturday, 10 October
Rain. High 65°, low 43°.
0.02Keystone, Sunday, 11 October
Light rain. High 62°, low 45°.
0
Keystone, Monday, 12 October
Clear. High 65°, low 44°.
0
Keystone, Tuesday, 13 October
Overcast. High 61°, low 42°.
0.24Keystone, Wednesday, 14 October
Light rain. High 54°, low 44°.
0.49
Keystone, Thursday, 15 October
Snow. High 40°, low 24°.
0.11Keystone, Friday, 16 October
Light snow. High 28°, low 11°.
0
Keystone, Saturday, 17 October
Partly cloudy. High 39°, low 10°.
0Keystone, Sunday, 18 October
Overcast. High 50°, low 22°.
0Keystone, Monday, 19 October
Clear. High 52°, low 26°.
0Keystone, Tuesday, 20 October
Light rain. High 50°, low 30°.
0Keystone, Wednesday, 21 October
Clear. High 50°, low 31°.
0.29Keystone, Thursday, 22 October
Snow. High 39°, low 21°.
0.04Keystone, Friday, 23 October
Climate normal for this date — 60-year average.
0.03Keystone, Saturday, 24 October
Climate normal for this date — 60-year average.
0.06Keystone, Sunday, 25 October
Climate normal for this date — 60-year average.
0.08Keystone, Monday, 26 October
Climate normal for this date — 60-year average.
0.05Keystone, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Keystone, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07
Keystone, Thursday, 29 October
Climate normal for this date — 60-year average.
0.06Keystone, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Keystone, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Keystone, Sunday, 1 November
Climate normal for this date — 60-year average.
0.06Keystone, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Keystone, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Keystone, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Keystone, Thursday, 5 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 Keystone, 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 Keystone, 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
58°Weather in Annapolis, MD
60°Weather in Atlanta, GA66°Weather in Augusta, ME52°Weather in Austin, TX76°Weather in Baton Rouge, LA77°Weather in Bismarck, ND58°Weather in Boise, ID71°Weather in Boston, MA55°Weather in Carson City, NV75°Weather in Charleston, WV60°Weather in Charlotte Amalie, VI82°Weather in Cheyenne, WY64°Weather in Columbia, SC63°Weather in Columbus, OH67°Weather in Concord, NH53°Weather in Denver, CO69°Weather in Des Moines, IA63°Weather in Dover, DE56°Weather in Frankfort, KY61°Weather in Harrisburg, PA56°Weather in Hartford, CT54°Weather in Helena, MT60°Weather in Honolulu, HI83°Weather in Indianapolis, IN68°Weather in Jackson, MS75°Weather in Jefferson City, MO73°Weather in Juneau, AK41°Weather in Lansing, MI59°Weather in Lincoln, NE67°Weather in Little Rock, AR70°Weather in Madison, WI59°Weather in Montgomery, AL70°Weather in Montpelier, VT53°Weather in Nashville, TN70°Weather in Oklahoma City, OK76°Weather in Olympia, WA61°Weather in Phoenix, AZ94°Weather in Pierre, SD59°Weather in Providence, RI55°Weather in Raleigh, NC60°Weather in Richmond, VA58°Weather in Sacramento, CA91°Weather in Salem, OR70°Weather in Salt Lake City, UT74°Weather in San Juan, PR78°Weather in Santa Fe, NM64°Weather in Springfield, IL68°Weather in St. Paul, MN60°Weather in Tallahassee, FL73°Weather in Topeka, KS70°Weather in Trenton, NJ57°Weather in Washington, DC60°55°Weather in Crawford, CO61°Weather in Hotchkiss, CO65°Weather in Victor, CO52°Weather in Woodland Park, CO59°Weather in Ramah, CO67°Weather in Green Mountain Falls, CO61°Weather in Buena Vista, CO59°Weather in Salida, CO63°Weather in Poncha Springs, CO61°Weather in Kit Carson, CO71°Weather in Brookside, CO69°Weather in Rockvale, CO69°Weather in Eads, CO71°Weather in Haswell, CO71°Weather in Boone, CO72°Weather in Rye, CO62°Weather in Crowley, CO73°Weather in Bonanza, CO55°Weather in Crestone, CO57°