Tomorrow in Rochester: Mild and mostly cloudy, high of 18°

Sunday 1 November at Frederick Douglass Greater Rochester International Airport (ROC), United States

Tomorrow at ROC

High18°

Likely 16°–21°

Mostly cloudy

Low 3°, likely 1°–5°

25% chance of rain
Wind up to 21 km/h
Humidity 67%

Through the day

Times are local; night hours are shaded. The line is a sketch, not an hour-by-hour forecast: this airport's typical daily temperature cycle, scaled to tomorrow's high and low.

Tomorrow's high should be 7° warmer than today's, and 5° warmer than the normal high for 1 November. Rain is less likely than usual: 25% against a normal 53% for the date.

How sure we are

Shaded: the likely range (an 80% range). In our tests, eight days in ten ended inside it.

Right now at ROC

11°, mostly cloudy, wind from the northwest at 19 km/h.

Latest airport report, 13:00 local time.

The details

Chance of rain: 25% normal 53%
Chance of thunder: 1% or less
Chance of snow: 1% or less
Chance of fog: 1% or less
Strongest wind: 21 km/h
Strongest gust: 26 km/h
Average humidity: 67%
Daytime sky: Mostly cloudy

Chances are for the local day. Rain means rain, drizzle or snow in at least one hourly airport report; fog means fog or visibility under 1 km in at least one. "Normal" is this airport's usual chance for the date. Wind and gust are the strongest of the day.

How our forecasts did here

Each band is the forecast high ±2°, each dot what the airport measured. Highs more than 2° off are in bold. Rained means rain or snow was reported that day.
Day	High forecast	High measured	Low forecast	Low measured	Rain chance	Rained
Fri 30 Oct	15°	17°	7°	9°	35%	No
Thu 29 Oct	22°	24°	9°	8°	12%	Yes
Wed 28 Oct	18°	19°	2°	4°	6%	No
Tue 27 Oct	11°	11°	3°	4°	12%	No
Sun 25 Oct	19°	19°	1°	2°	1%	No
Fri 23 Oct	17°	13°	4°	2°	4%	No
Thu 22 Oct	18°	17°	2°	0°	3%	No
Wed 21 Oct	18°	16°	2°	0°	1%	No
Tue 20 Oct	21°	17°	4°	4°	1%	No
Sun 18 Oct	14°	15°	-2°	1°	12%	No
Sat 17 Oct	10°	8°	4°	4°	49%	No
Fri 16 Oct	16°	20°	8°	9°	87%	Yes
Thu 15 Oct	13°	12°	7°	9°	33%	Yes
Wed 14 Oct	19°	22°	10°	11°	45%	Yes

The forecast high was within 2° on 8 of the last 14 scored days. Days that could not be scored are left out. Forecasts before 27 October did not yet use ECMWF and were less accurate on average.

"Measured" is the highest and lowest hourly airport report of the local day. Official daily highs and lows can differ a little: at US airports the official high averages about 0.4° higher and the official low about 0.5° lower. More

Not for aviation or safety decisions. Disclaimer