Alerts in effect
None in effect at the last snapshot.
Today in McHenry County
☀️ Monday: Sunny, high 66°F
⛅ Monday Night: Partly cloudy, low 44°F
🌧 Rain: up to 0.01 in in the 24 hours to 7 AM, from 1 CoCoRaHS volunteer
Forecast and rivers from the National Weather Service, air from EPA AirNow, rain from CoCoRaHS volunteers; as of Mon 19 Oct, 1:42 AM CDT. The latest forecast
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Readings here
0 readings from people and 5,381 official readings here in the last 14 days.
The last day
| Stage (gauge height) | 1.12 ft to 7.93 ft |
| Streamflow | 14.5 cfs to 1,330 cfs |
| Water temperature | 56.3 °F to 58.5 °F |
| Ozone | 24 ppb to 25 ppb |
| PM2.5 | 3.4 µg/m³ to 4.3 µg/m³ |
| Rainfall | 0.01 in |