Weather in Tiffin, IA
Tiffin, Wednesday, 28 October, 03:32
Clear. Feels like 50°. High 73°, low 50°.
Monthly outlook for Tiffin, IA: average high 59.3°, average low 46.3°. That is 3.6° above the climate normal for October. Precipitation is expected on 8 days (about 3.1 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 28 October (72.7°), the coolest 7 November (35.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.8° | 54.5° | +4.6° |
| 7 November – 16 November | 53.5° | 49.1° | +2.5° |
| 17 November – 26 November | at normal | 45.3° | — |
October records over 66 years
0
Tiffin, Thursday, 29 October
Light rain. High 67°, low 50°.
0.86Tiffin, Friday, 30 October
Heavy rain. High 59°, low 46°.
0.39Tiffin, Saturday, 31 October
Rain. High 67°, low 54°.
0
Tiffin, Sunday, 1 November
Overcast. High 69°, low 54°.
0.25Tiffin, Monday, 2 November
Rain. High 68°, low 60°.
0.79Tiffin, Tuesday, 3 November
Rain. High 62°, low 52°.
0.17Tiffin, Wednesday, 4 November
Light rain. High 59°, low 46°.
0.48Tiffin, Thursday, 5 November
Light rain. High 55°, low 45°.
0
Tiffin, Friday, 6 November
Clear. High 49°, low 36°.
0Tiffin, Saturday, 7 November
Overcast. High 50°, low 35°.
0Tiffin, Sunday, 8 November
Clear. High 54°, low 35°.
0Tiffin, Monday, 9 November
Overcast. High 58°, low 46°.
0.15Tiffin, Tuesday, 10 November
Light rain. High 55°, low 49°.
0
Tiffin, Wednesday, 11 November
Partly cloudy. High 52°, low 42°.
0.05Tiffin, Thursday, 12 November
Light rain. High 53°, low 40°.
0.07Tiffin, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Tiffin, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Tiffin, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Tiffin, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Tiffin, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Tiffin, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Tiffin, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Tiffin, Friday, 20 November
Climate normal for this date — 60-year average.
0.08
Tiffin, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Tiffin, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Tiffin, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Tiffin, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Tiffin, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.1
Tiffin, Thursday, 26 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 Tiffin, 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 Tiffin, 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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