Weather in Longmont, CO
Longmont, Sunday, 18 October, 00:13
Clear. Feels like 48°. High 75°, low 37°.
Monthly outlook for Longmont, CO: average high 65.3°, average low 41.1°. That is 4° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (76.1°), the coolest 25 October (31.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 66.2° | 60.5° | +3.2° |
| 28 October – 6 November | 63.8° | 53.7° | +5.6° |
| 7 November – 16 November | at normal | 50.9° | — |
October records over 66 years
0
Longmont, Monday, 19 October
Clear. High 65°, low 41°.
0
Longmont, Tuesday, 20 October
Mostly clear. High 70°, low 42°.
0Longmont, Wednesday, 21 October
Clear. High 73°, low 44°.
0
Longmont, Thursday, 22 October
Overcast. High 70°, low 50°.
0.01
Longmont, Friday, 23 October
Light rain. High 76°, low 48°.
0.04Longmont, Saturday, 24 October
Light rain. High 51°, low 38°.
0Longmont, Sunday, 25 October
Overcast. High 53°, low 32°.
0
Longmont, Monday, 26 October
Partly cloudy. High 60°, low 36°.
0Longmont, Tuesday, 27 October
Clear. High 70°, low 44°.
0Longmont, Wednesday, 28 October
Overcast. High 68°, low 45°.
0Longmont, Thursday, 29 October
Overcast. High 65°, low 44°.
0Longmont, Friday, 30 October
Clear. High 65°, low 39°.
0Longmont, Saturday, 31 October
Partly cloudy. High 55°, low 41°.
0Longmont, Sunday, 1 November
Clear. High 70°, low 37°.
0Longmont, Monday, 2 November
Partly cloudy. High 60°, low 41°.
0.04Longmont, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Longmont, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Longmont, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Longmont, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Longmont, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Longmont, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Longmont, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Longmont, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Longmont, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Longmont, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Longmont, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Longmont, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Longmont, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Longmont, Monday, 16 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 Longmont, 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 Longmont, 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
34°Weather in Annapolis, MD46°Weather in Atlanta, GA52°Weather in Augusta, ME27°Weather in Austin, TX56°Weather in Baton Rouge, LA55°Weather in Bismarck, ND
53°Weather in Boise, ID55°Weather in Boston, MA35°Weather in Carson City, NV51°Weather in Charleston, WV39°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY50°Weather in Columbia, SC49°Weather in Columbus, OH39°Weather in Concord, NH29°Weather in Denver, CO55°Weather in Des Moines, IA45°Weather in Dover, DE43°Weather in Frankfort, KY37°Weather in Harrisburg, PA38°Weather in Hartford, CT34°Weather in Helena, MT50°Weather in Honolulu, HI76°Weather in Indianapolis, IN38°Weather in Jackson, MS53°Weather in Jefferson City, MO39°Weather in Juneau, AK39°Weather in Lansing, MI38°Weather in Lincoln, NE49°Weather in Little Rock, AR49°Weather in Madison, WI46°Weather in Montgomery, AL53°Weather in Montpelier, VT27°Weather in Nashville, TN47°Weather in Oklahoma City, OK46°Weather in Olympia, WA49°Weather in Phoenix, AZ70°Weather in Pierre, SD55°Weather in Providence, RI33°Weather in Raleigh, NC46°Weather in Richmond, VA43°Weather in Sacramento, CA65°Weather in Salem, OR53°Weather in Salt Lake City, UT54°Weather in San Juan, PR78°Weather in Santa Fe, NM42°Weather in Springfield, IL41°Weather in St. Paul, MN52°Weather in Tallahassee, FL57°Weather in Topeka, KS46°Weather in Trenton, NJ40°Weather in Washington, DC45°28°Weather in Downieville-Lawson-Dumont, CO45°Weather in Security-Widefield, CO49°Weather in West Pleasant View, CO57°Weather in City of Creede, CO32°Weather in Columbine, CO55°Weather in Campion, CO53°Weather in Twin Lakes, CO57°Weather in Beverly Hills, CO51°Weather in Burning Tree Ranch, CO50°Weather in Country Acres, CO50°Weather in Happy Canyon, CO50°Weather in McArthur Ranch, CO53°Weather in Monte Vista Estates, CO50°Weather in Ponderosa East, CO50°Weather in Ponderosa Hills, CO51°Weather in Shamballah-Ashrama, CO49°Weather in Silver Heights, CO52°Weather in Surrey Ridge, CO51°Weather in Tomah, CO51°