Monroe, IA Weather & Growing Conditions
Today
85°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 11am. Partly sunny. High near 85, with temperatures falling to around 83 in the afternoon. West northwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Showers And Thunderstorms Likely | 5 to 8 mph WNW | 60% |
| Tonight | 63°F | Showers And Thunderstorms | 7 to 10 mph NNE | 92% |
| Wednesday | 74°F | Showers And Thunderstorms Likely | 8 mph NNE | 90% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms | 3 to 7 mph NNE | 50% |
| Thursday | 80°F | Sunny | 5 mph NE | 8% |
| Thursday Night | 61°F | Mostly Clear | 3 mph ESE | 2% |
| Friday | 85°F | Sunny | 2 to 7 mph SSE | 6% |
| Friday Night | 66°F | Mostly Clear | 6 mph SSE | 14% |
| Saturday | 88°F | Sunny | 3 to 9 mph S | 11% |
| Saturday Night | 72°F | Mostly Clear | 10 mph SSW | 13% |
| Sunday | 90°F | Mostly Sunny | 12 mph SSW | 13% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 29% |
| Monday | 90°F | Chance Showers And Thunderstorms then Mostly Sunny | 9 to 13 mph S | 29% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 13 mph SE | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Monroe, IA
Last spring frost
Apr 20
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b
Explore more for Monroe, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Knoxville, Ia (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.