Bristow, IA Weather & Growing Conditions
Overnight
64°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1am, then patchy fog and showers and thunderstorms likely. Some of the storms could produce heavy rain. Cloudy. Low around 64, with temperatures rising to around 66 overnight. Southeast wind 7 to 12 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Showers And Thunderstorms Likely | 7 to 12 mph SE | 74% |
| Saturday | 75°F | Patchy Fog | 6 to 9 mph WSW | 54% |
| Saturday Night | 58°F | Chance Showers And Thunderstorms | 12 mph N | 31% |
| Sunday | 65°F | Chance Rain Showers | 12 to 15 mph NE | 28% |
| Sunday Night | 52°F | Slight Chance Rain Showers | 10 to 14 mph ENE | 24% |
| Monday | 60°F | Chance Rain Showers | 14 mph ENE | 51% |
| Monday Night | 47°F | Chance Rain Showers | 7 to 12 mph ENE | 49% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 9 mph ENE | 22% |
| Tuesday Night | 45°F | Partly Cloudy | 2 to 6 mph ENE | 3% |
| Wednesday | 64°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 2 mph ESE | 5% |
| Thursday | 67°F | Slight Chance Rain Showers | 3 mph SE | 15% |
| Thursday Night | 51°F | Mostly Cloudy | 2 mph SE | 10% |
| Friday | 67°F | Mostly Sunny | 1 to 5 mph ESE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bristow, IA
Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
5a
Explore more for Bristow, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Allison, Ia (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.