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Monona County Arboretum Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
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| Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Sunny | Chance of T-Storm |
| Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 70°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 71°FLo: 22°C |
| POP: 50% | POP: 40% | POP: 20% | POP: 20% | POP: 20% | POP: 50% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM CDT Fri Aug 28 2026 
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Issued: 1219 PM CDT Fri Aug 28 2026
Key Messages
- High temperatures are expected in the mid 80s today, with increasing southerly wind gusts.
- A chance for thunderstorms returns tonight into early Saturday, mainly across northeast Nebraska and western Iowa.
- Hotter conditions arrive this weekend, with highs in the mid to upper 90s, heat index values near 100, and wind gusts of 20-30+ mph. Above-normal temperatures and periodic thunderstorm chances continued into next week.
Discussion
... Issued at 1217 PM CDT Fri Aug 28 2026
Today and Ton...