Terril, IA Weather & Growing Conditions
Tonight
63°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms before 1am, then areas of fog and a chance of showers and thunderstorms between 1am and 4am, then areas of fog and a chance of showers and thunderstorms between 4am and 5am, then patchy fog and a slight chance of showers and thunderstorms. Cloudy, with a low around 63. Northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Patchy Fog | 5 mph NE | 38% |
| Saturday | 69°F | Areas Of Fog | 5 to 10 mph N | 27% |
| Saturday Night | 56°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NNE | 26% |
| Sunday | 64°F | Slight Chance Rain Showers | 15 mph NE | 20% |
| Sunday Night | 52°F | Chance Rain Showers | 10 to 15 mph ENE | 46% |
| Monday | 59°F | Chance Rain Showers | 10 mph ENE | 53% |
| Monday Night | 47°F | Chance Rain Showers | 5 to 10 mph ENE | 45% |
| Tuesday | 61°F | Partly Sunny | 5 to 10 mph E | 9% |
| Tuesday Night | 46°F | Partly Cloudy | 5 mph ESE | 1% |
| Wednesday | 65°F | Mostly Sunny | 5 mph SE | 3% |
| Wednesday Night | 50°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SSE | 19% |
| Thursday | 67°F | Slight Chance Rain Showers | 5 mph S | 20% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph SSE | 10% |
| Friday | 68°F | Partly Sunny | 5 to 10 mph SE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Terril, IA
Last spring frost
Apr 28
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
5a
Explore more for Terril, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Spirit Lake, Ia (12.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.