Weather in Riverdale, MT
Riverdale, Monday, 9 November, 14:19
Partly cloudy. Feels like 54°. High 56°, low 36°.
Monthly outlook for Riverdale, MT: average high 52.2°, average low 34.3°. That is 5.3° above the climate normal for November. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 12 November (66.4°), the coolest 21 November (24.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 November – 18 November | 57.3° | 44.2° | +7.3° |
| 19 November – 28 November | 43.7° | 38.8° | +2.7° |
| 29 November – 8 December | at normal | 35.6° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Ulm (6 mi).
0
Riverdale, Tuesday, 10 November
Overcast. High 59°, low 45°.
0Riverdale, Wednesday, 11 November
Overcast. High 64°, low 45°.
0Riverdale, Thursday, 12 November
Overcast. High 66°, low 40°.
0Riverdale, Friday, 13 November
Overcast. High 64°, low 36°.
0Riverdale, Saturday, 14 November
Partly cloudy. High 62°, low 38°.
0Riverdale, Sunday, 15 November
Overcast. High 55°, low 39°.
0Riverdale, Monday, 16 November
Overcast. High 54°, low 39°.
0.03
Riverdale, Tuesday, 17 November
Light rain. High 47°, low 34°.
0
Riverdale, Wednesday, 18 November
Clear. High 45°, low 28°.
0
Riverdale, Thursday, 19 November
Mostly clear. High 43°, low 28°.
0Riverdale, Friday, 20 November
Light rain. High 41°, low 25°.
0Riverdale, Saturday, 21 November
Clear. High 44°, low 25°.
0Riverdale, Sunday, 22 November
Mostly clear. High 47°, low 28°.
0Riverdale, Monday, 23 November
Overcast. High 46°, low 35°.
0Riverdale, Tuesday, 24 November
Clear. High 42°, low 28°.
0.06Riverdale, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.05Riverdale, Thursday, 26 November
Climate normal for this date — 60-year average.
0.03Riverdale, Friday, 27 November
Climate normal for this date — 60-year average.
0.04Riverdale, Saturday, 28 November
Climate normal for this date — 60-year average.
0.02Riverdale, Sunday, 29 November
Climate normal for this date — 60-year average.
0.02Riverdale, Monday, 30 November
Climate normal for this date — 60-year average.
0.03Riverdale, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.06Riverdale, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.02Riverdale, Thursday, 3 December
Climate normal for this date — 60-year average.
0.02Riverdale, Friday, 4 December
Climate normal for this date — 60-year average.
0.03Riverdale, Saturday, 5 December
Climate normal for this date — 60-year average.
0.04Riverdale, Sunday, 6 December
Climate normal for this date — 60-year average.
0.01Riverdale, Monday, 7 December
Climate normal for this date — 60-year average.
0.02Riverdale, Tuesday, 8 December
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
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