Weather in Marshalltown, IA
Marshalltown, Wednesday, 21 October, 07:59
Partly cloudy. Feels like 49°. High 73°, low 48°.
Monthly outlook for Marshalltown, IA: average high 61.1°, average low 47.7°. That is 2.8° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 22 October (74.8°), the coolest 30 October (38.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 63.6° | 57.8° | +3.2° |
| 31 October – 9 November | 56.8° | 52.5° | +2.4° |
| 10 November – 19 November | at normal | 47.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ferguson (7 mi).
0
Marshalltown, Thursday, 22 October
Clear. High 75°, low 49°.
0
Marshalltown, Friday, 23 October
Overcast. High 71°, low 53°.
0Marshalltown, Saturday, 24 October
Overcast. High 71°, low 56°.
0Marshalltown, Sunday, 25 October
Overcast. High 73°, low 55°.
0.11
Marshalltown, Monday, 26 October
Light rain. High 70°, low 53°.
0.18Marshalltown, Tuesday, 27 October
Light rain. High 49°, low 43°.
0.33Marshalltown, Wednesday, 28 October
Rain. High 51°, low 44°.
0Marshalltown, Thursday, 29 October
Overcast. High 51°, low 41°.
0Marshalltown, Friday, 30 October
Clear. High 53°, low 38°.
0.08Marshalltown, Saturday, 31 October
Light rain. High 49°, low 40°.
0.16Marshalltown, Sunday, 1 November
Light rain. High 49°, low 43°.
0Marshalltown, Monday, 2 November
Overcast. High 58°, low 45°.
0Marshalltown, Tuesday, 3 November
Overcast. High 60°, low 47°.
0.85Marshalltown, Wednesday, 4 November
Rain. High 65°, low 57°.
0Marshalltown, Thursday, 5 November
Light rain. High 58°, low 50°.
0.07
Marshalltown, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Marshalltown, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Marshalltown, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Marshalltown, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Marshalltown, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Marshalltown, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Marshalltown, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Marshalltown, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Marshalltown, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Marshalltown, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Marshalltown, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Marshalltown, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Marshalltown, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Marshalltown, Thursday, 19 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 Marshalltown, IA 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 Marshalltown, IA 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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