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Previous 5 Days
  • Thu

    May 7

    Sunny 69°Lo 44°
    more
  • Fri

    May 8

    Mostly sunny 69°Lo 45°
    more
  • Sat

    May 9

    Some rain and a thunderstorm 69°Lo 46°
    more
  • Sun

    May 10

    Couple of thunderstorms 69°Lo 45°
    more
  • Mon

    May 11

    An a.m. shower; mostly cloudy 61°Lo 41°
Hi 61° RealFeel® 59° Precipitation 40%

Day

N

E

S

W

  • NNW 10 mph
  • Gusts: 21 mph

A shower in places in the morning; otherwise, mainly cloudy

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 41° RealFeel® 42° Precipitation 5%

Night

N

E

S

W

  • NNW 6 mph
  • Gusts: 20 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 11

more Historical Weather Data >
  Today Normal Record 5/11/2014
High 61° 64° 82° (1979) 75°
Low 41° 39° 21° (1978) 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:58 AM with 14:25 of sunlight, then sets at 8:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:58 AM with 11:02 of moolight, then sets at 1:00 PM

Olean Weather Report

The Day an Ice Jam Reduced the Mighty Niagara Falls to a Trickle

March 29, 2015; 1:28 AM ET

On March 29, 1848, a massive ice jam reduced the mighty Niagara Falls to a trickle, a rare phenomenon that lasted for nearly 40 hours. more >