Weather in Riverdale, MT
Riverdale, Monday, 19 October, 04:57
Partly cloudy. Feels like 48°. High 68°, low 41°.
Monthly outlook for Riverdale, MT: average high 54.5°, average low 36°. That is 0.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (70.6°), the coolest 28 October (23.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 55.1° | 55.6° | -0.3° |
| 29 October – 7 November | 53.3° | 48.7° | +2.6° |
| 8 November – 17 November | at normal | 44.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ulm (6 mi).
0
Riverdale, Tuesday, 20 October
Overcast. High 59°, low 38°.
0
Riverdale, Wednesday, 21 October
Partly cloudy. High 70°, low 37°.
0
Riverdale, Thursday, 22 October
Clear. High 71°, low 43°.
1.08
Riverdale, Friday, 23 October
Rain. High 52°, low 43°.
0.13Riverdale, Saturday, 24 October
Light rain. High 53°, low 40°.
0Riverdale, Sunday, 25 October
Overcast. High 62°, low 38°.
0.11
Riverdale, Monday, 26 October
Snow. High 33°, low 29°.
0.06Riverdale, Tuesday, 27 October
Light snow. High 33°, low 24°.
0Riverdale, Wednesday, 28 October
Clear. High 50°, low 24°.
0Riverdale, Thursday, 29 October
Overcast. High 60°, low 32°.
0Riverdale, Friday, 30 October
Overcast. High 62°, low 42°.
0Riverdale, Saturday, 31 October
Clear. High 54°, low 42°.
0Riverdale, Sunday, 1 November
Overcast. High 55°, low 39°.
0Riverdale, Monday, 2 November
Overcast. High 41°, low 32°.
0Riverdale, Tuesday, 3 November
Overcast. High 48°, low 30°.
0.04Riverdale, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Riverdale, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Riverdale, Friday, 6 November
Climate normal for this date — 60-year average.
0.02
Riverdale, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Riverdale, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Riverdale, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Riverdale, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Riverdale, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Riverdale, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Riverdale, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Riverdale, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Riverdale, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Riverdale, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Riverdale, 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 Riverdale, 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 Riverdale, 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
35°Weather in Annapolis, MD48°Weather in Atlanta, GA46°Weather in Augusta, ME36°Weather in Austin, TX53°Weather in Baton Rouge, LA51°Weather in Bismarck, ND38°Weather in Boise, ID52°Weather in Boston, MA39°Weather in Carson City, NV49°Weather in Charleston, WV39°Weather in Charlotte Amalie, VI79°Weather in Cheyenne, WY39°Weather in Columbia, SC43°Weather in Columbus, OH39°Weather in Concord, NH33°Weather in Denver, CO44°Weather in Des Moines, IA44°Weather in Dover, DE41°Weather in Frankfort, KY42°Weather in Harrisburg, PA38°Weather in Hartford, CT36°Weather in Helena, MT37°Weather in Honolulu, HI74°Weather in Indianapolis, IN40°Weather in Jackson, MS51°Weather in Jefferson City, MO41°Weather in Juneau, AK36°Weather in Lansing, MI38°Weather in Lincoln, NE48°Weather in Little Rock, AR47°Weather in Madison, WI43°Weather in Montgomery, AL48°Weather in Montpelier, VT31°Weather in Nashville, TN43°Weather in Oklahoma City, OK51°Weather in Olympia, WA46°Weather in Phoenix, AZ67°Weather in Pierre, SD43°Weather in Providence, RI37°Weather in Raleigh, NC42°Weather in Richmond, VA40°Weather in Sacramento, CA54°Weather in Salem, OR48°Weather in Salt Lake City, UT53°Weather in San Juan, PR77°Weather in Santa Fe, NM44°Weather in Springfield, IL41°Weather in St. Paul, MN45°Weather in Tallahassee, FL55°Weather in Topeka, KS45°Weather in Trenton, NJ40°Weather in Washington, DC41°37°Weather in Missoula, MT36°Weather in Hobson, MT37°Weather in Miles City, MT47°Weather in Forsyth, MT42°Weather in Roundup, MT42°Weather in Harlowton, MT36°Weather in Hamilton, MT38°Weather in Laurel, MT40°Weather in Livingston, MT34°Weather in Hardin, MT41°Weather in Red Lodge, MT43°Weather in Bearcreek, MT47°Weather in Fort Peck, MT41°Weather in Whitefish, MT28°Weather in Dodson, MT39°Weather in Saco, MT38°Weather in Troy, MT34°Weather in Rexford, MT40°Weather in Eureka, MT40°