Ottawa County weather, town by town
11 places in Ottawa County, Ohio, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1901 to 2026. Station extremes, not official state records.
Ottawa County Weather Facts
Ottawa County has 11 places on myweatherrock (7 villages, 3 census-designated places, 1 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 110°F at Fremont on July 24, 1934. The coldest night is -20°F at Sandusky on January 19, 1994. The wettest day brought 7.95 inches of rain at Fremont on July 5, 1969. The biggest single-day snow measured 14.02 inches at Norwalk Wwtp on December 26, 1926. Those are station measurements from NOAA's daily records, 1901 to 2026, not official state records. By area the largest place is Curtice, about 4 square miles.
About Ottawa County weather
The map on the Now tab shows every Ottawa County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 5 Ottawa County towns with station normals, the warmest month is July, when the day usually reaches 83°F, and the coldest is January, when the night usually falls to 20°F. April is the wettest, with rain on about 13 days. July afternoons run from about 82°F in Lakeside to 85°F in Oak Harbor. January nights run from about 18°F in Oak Harbor to 21°F in Lakeside.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Ottawa County weather records
Measured at the NOAA stations serving these towns, daily records 1901 to 2026. Station extremes, not official state records.
Common questions about Ottawa County weather
- What is the hottest temperature recorded at a Ottawa County station?
- 110°F at Fremont on July 24, 1934, in the NOAA daily station records myweatherrock holds (1901 to 2026).
- What is the coldest temperature recorded at a Ottawa County station?
- -20°F at Sandusky on January 19, 1994.
- What is the most rain a Ottawa County station has measured in one day?
- 7.95 inches at Fremont on July 5, 1969.
- What is the biggest one-day snowfall at a Ottawa County station?
- 14.02 inches at Norwalk Wwtp on December 26, 1926.
- How many Ottawa County towns have a weather page here?
- 11: 7 villages, 3 census-designated places, 1 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Ottawa County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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