Mason City, Sunday, 9 August, 08:40
Clear. Feels like 77°. High 93°, low 69°.
Two-week outlook for Mason City, IL: week one averages a high of 87.5° and week two 82.6°, so week two runs 4.9° cooler than week one. Around 3.9 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, August 9: 93°, dry.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (August 9 – August 15) | 87.5° | 70.1° | 3.9 in / 5 d | — |
| 2nd (August 16 – August 22) | 82.6° | 63.9° | 0.0 in / 0 d | — |
Mason City, Monday, 10 August
Overcast. High 96°, low 77°.
Mason City, Tuesday, 11 August
Rain. High 98°, low 72°.
Mason City, Wednesday, 12 August
Rain. High 91°, low 72°.
Mason City, Thursday, 13 August
Heavy rain. High 76°, low 68°.
Mason City, Friday, 14 August
Rain. High 77°, low 66°.
Mason City, Saturday, 15 August
Light rain. High 81°, low 67°.
Mason City, Sunday, 16 August
Overcast. High 82°, low 70°.
Mason City, Monday, 17 August
Partly cloudy. High 78°, low 61°.
Mason City, Tuesday, 18 August
Overcast. High 84°, low 62°.
Mason City, Wednesday, 19 August
Partly cloudy. High 81°, low 65°.
Mason City, Thursday, 20 August
Mostly clear. High 80°, low 60°.
Mason City, Friday, 21 August
Partly cloudy. High 85°, low 62°.
Mason City, Saturday, 22 August
Clear. High 88°, low 67°.
Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.
It is the gap between the forecast and the climate normal for those same dates in Mason City, IL, computed over 60 years. A positive value means the week runs warmer than usual.
Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.