Harvey, Thursday, 8 October, 21:41
Overcast. Feels like 66°. High 78°, low 50°.
Harvey, Friday, 9 October
Rain. High 84°, low 58°.
Harvey, Saturday, 10 October
Overcast. High 82°, low 62°.
Harvey, Sunday, 11 October
Clear. High 80°, low 58°.
Harvey, Monday, 12 October
Clear. High 84°, low 69°.
Harvey, Tuesday, 13 October
Light rain. High 76°, low 62°.
Harvey, Wednesday, 14 October
Rain. High 67°, low 59°.
Harvey, Thursday, 15 October
Heavy rain. High 75°, low 60°.
Harvey, Friday, 16 October
Overcast. High 56°, low 47°.
Harvey, Saturday, 17 October
Mostly clear. High 50°, low 38°.
Harvey, Sunday, 18 October
Overcast. High 54°, low 37°.
Harvey, Monday, 19 October
Overcast. High 56°, low 39°.
Harvey, Tuesday, 20 October
Light rain. High 53°, low 46°.
Harvey, Wednesday, 21 October
Clear. High 68°, low 47°.
Harvey, Thursday, 22 October
Partly cloudy. High 63°, low 47°.
Harvey, Friday, 23 October
Clear. High 60°, low 44°.
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 Harvey, IA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
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.
They are real temperature extremes recorded in Harvey, IA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.