Weather in Sweet Grass, MT
Sweet Grass, Tuesday, 20 October, 18:48
Clear. Feels like 47°. High 56°, low 35°.
Monthly outlook for Sweet Grass, MT: average high 43.4°, average low 30.6°. That is 3.2° below the climate normal for October. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (67.3°), the coolest 27 October (24.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 46.7° | 51.2° | -2.5° |
| 30 October – 8 November | 38° | 44.9° | -3.8° |
| 9 November – 18 November | at normal | 40.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sunburst (8 mi).
0
Sweet Grass, Wednesday, 21 October
Mostly clear. High 63°, low 36°.
0.05
Sweet Grass, Thursday, 22 October
Light rain. High 67°, low 44°.
0.2Sweet Grass, Friday, 23 October
Light rain. High 50°, low 35°.
0
Sweet Grass, Saturday, 24 October
Partly cloudy. High 45°, low 26°.
0.08
Sweet Grass, Sunday, 25 October
Light snow. High 35°, low 31°.
0Sweet Grass, Monday, 26 October
Partly cloudy. High 33°, low 26°.
0
Sweet Grass, Tuesday, 27 October
Clear. High 40°, low 25°.
0
Sweet Grass, Wednesday, 28 October
Overcast. High 37°, low 29°.
0Sweet Grass, Thursday, 29 October
Clear. High 42°, low 27°.
0Sweet Grass, Friday, 30 October
Overcast. High 36°, low 30°.
0Sweet Grass, Saturday, 31 October
Overcast. High 46°, low 30°.
0.15Sweet Grass, Sunday, 1 November
Snow. High 35°, low 28°.
0Sweet Grass, Monday, 2 November
Overcast. High 39°, low 28°.
0.06Sweet Grass, Tuesday, 3 November
Light snow. High 34°, low 30°.
0.01Sweet Grass, Wednesday, 4 November
Light rain. High 38°, low 30°.
0.04Sweet Grass, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Sweet Grass, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Sweet Grass, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Sweet Grass, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Thursday, 12 November
Climate normal for this date — 60-year average.
0.01Sweet Grass, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Sweet Grass, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.03Sweet Grass, Wednesday, 18 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 Sweet Grass, MT 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 Sweet Grass, MT 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
53°Weather in Annapolis, MD56°Weather in Atlanta, GA63°Weather in Augusta, ME50°Weather in Austin, TX75°Weather in Baton Rouge, LA71°Weather in Bismarck, ND
65°Weather in Boise, ID72°Weather in Boston, MA51°Weather in Carson City, NV68°Weather in Charleston, WV53°Weather in Charlotte Amalie, VI84°Weather in Cheyenne, WY62°Weather in Columbia, SC59°Weather in Columbus, OH56°Weather in Concord, NH48°Weather in Denver, CO67°Weather in Des Moines, IA62°Weather in Dover, DE53°Weather in Frankfort, KY56°Weather in Harrisburg, PA53°Weather in Hartford, CT57°Weather in Helena, MT60°Weather in Honolulu, HI79°Weather in Indianapolis, IN57°Weather in Jackson, MS69°Weather in Jefferson City, MO63°Weather in Juneau, AK41°Weather in Lansing, MI54°Weather in Lincoln, NE66°Weather in Little Rock, AR67°Weather in Madison, WI55°Weather in Montgomery, AL61°Weather in Montpelier, VT45°Weather in Nashville, TN66°Weather in Oklahoma City, OK69°Weather in Olympia, WA61°Weather in Phoenix, AZ90°Weather in Pierre, SD64°Weather in Providence, RI50°Weather in Raleigh, NC57°Weather in Richmond, VA55°Weather in Sacramento, CA69°Weather in Salem, OR72°Weather in Salt Lake City, UT69°Weather in San Juan, PR80°Weather in Santa Fe, NM62°Weather in Springfield, IL60°Weather in St. Paul, MN62°Weather in Tallahassee, FL62°Weather in Topeka, KS64°Weather in Trenton, NJ54°Weather in Washington, DC58°49°Weather in Dixon, MT54°Weather in Niarada, MT54°Weather in Noxon, MT56°Weather in Old Agency, MT55°Weather in Paradise, MT56°Weather in Trout Creek, MT60°Weather in Power, MT49°Weather in Choteau, MT53°Weather in Dayton, MT56°Weather in Pablo, MT55°Weather in Ravalli, MT51°Weather in Rollins, MT55°Weather in Woods Bay, MT53°Weather in Lincoln, MT53°Weather in Simms, MT50°Weather in Ulm, MT53°Weather in Vaughn, MT52°Weather in Belt, MT51°Weather in Sun River, MT51°