Sandy Lake, PA Weather Tomorrow

Find out what tomorrow's weather looks like in Sandy Lake with a complete 5 day forecast featuring precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Sandy Lake area and around Mercer county, Pennsylvania.
Updated: Sat Sep 12th 2026 10:45 AM EDT
Sandy Lake, PA Weather – 9-12 – Overcast
78° / 59°
Overcast
It will be overcast in Sandy Lake, with a high of 78°F and a low of 59°F. The chance of rain is 80% with an estimated 0.11in. Winds will be light at 9mph and gusts of 18.4mph at 6 PM. High humidity with average of 85% is anticipated, the maximum being 98% at 8 PM and 69% being its lowest at 3 PM. Barometric pressure is its highest of 29.99inHg at 12 PM, a lowest point of 29.93inHg at 3 PM with an avg 29.95inHg.
Sandy Lake, PA Weather – 9-13 – Fog
70° / 61°

Weather Tomorrow

Fog
Sandy Lake could see fog with daytime highs of 70°F and nighttime lows near 61°F. The chance of rain is 80% with an estimated 0.08in. Winds will be light at 9mph and gusts of 22.9mph at 9 PM. High humidity with average of 95% is anticipated, the maximum being 100% at 3 AM and 81% being its lowest at 3 PM. Barometric pressure is its highest of 30.06inHg at 11 PM, a lowest point of 29.93inHg at 4 AM with an avg 29.97inHg.
Sandy Lake, PA Weather – 9-14 – Mist
62° / 51°
Mist
Mist is in the forecast for Sandy Lake, with a high of 62°F and a low of 51°F. There's a very small chance of rainfall, only about 10%. Winds will be light at 9mph and gusts of 21.5mph at 3 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 97% at 3 AM and 43% being its lowest at 4 PM. Barometric pressure is its highest of 30.28inHg at 9 PM, a lowest point of 30.08inHg at 12 AM with an avg 30.21inHg.
Sandy Lake, PA Weather – 9-15 – Overcast
75° / 51°
Overcast
Daytime highs will reach 75°F with lows dropping to 51°F in Sandy Lake, where it will be overcast. There might be light rainfall having a 12% chance with an estimated 0in. Wind will be moderate, blowing around 12mph on average and gusts of 25.1mph at 11 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 83% at 6 AM and 50% being its lowest at 2 PM. Barometric pressure is its highest of 30.27inHg at 12 AM, a lowest point of 30.16inHg at 5 PM with an avg 30.22inHg.
Sandy Lake, PA Weather – 9-16 – Sunny
80° / 63°
Sunny
Sandy Lake is set for sunshine with temperatures peaking at 80°F and dipping to 63°F. Rainfall predicted to have a 74% chance with an estimated 0.2in. Winds will be light at 7mph and gusts of 13.1mph at 8 AM. The humidity will be on the higher side, averaging about 78%, the maximum being 98% at 5 AM and 56% being its lowest at 2 PM. Barometric pressure is its highest of 30.28inHg at 11 AM, a lowest point of 30.19inHg at 5 PM with an avg 30.22inHg.
Sandy Lake, PA Weather – 9-17 – Light Rain Shower
78° / 65°
Light Rain Shower
Daytime highs will reach 78°F with lows dropping to 65°F in Sandy Lake, where periods of rain are likely. The chance of rain is 91% with an estimated 0.61in. Winds will be light at 9mph and gusts of 13.4mph at 5 PM. High humidity with average of 92% is anticipated, the maximum being 98% at 9 PM and 74% being its lowest at 2 PM. Barometric pressure is its highest of 30.2inHg at 12 AM, a lowest point of 30.08inHg at 5 PM with an avg 30.14inHg.

Currently

Overcast 70°F
29.97 inHg.
Barometer
80%
Humidity
SSE 11.9 mph
Wind
Overcast

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