Weather forecast for: Castalia OH
Last Update: 3:47 am EDT Oct 22, 2026
Today: Areas of fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.
Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 47. Calm wind.
Friday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming northeast around 6 mph in the afternoon.
Friday Night: Mostly clear, with a low around 39. East wind around 5 mph becoming calm in the evening.
Saturday: Sunny, with a high near 65. Light and variable wind.
Saturday Night: Mostly clear, with a low around 41.
Sunday: Mostly sunny, with a high near 70.
Sunday Night: Partly cloudy, with a low around 46.
Monday: Mostly sunny, with a high near 69.
Monday Night: Mostly cloudy, with a low around 48.
Tuesday: Mostly cloudy, with a high near 65.
Tuesday Night: Mostly cloudy, with a low around 47.
Wednesday: Mostly cloudy, with a high near 63.