Sullivan, ME Weather Forecast | 5 Day
Updated: Thu Sep 10th 2026 4:30 AM EDT
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Heavy Rain
Thu 9-10-26
Heavy Rain with a high of 81°F and a low of 58°F. It will likey rain, having a 78% chance of a downpour with an estimated 10.29in. Wind will be moderate, blowing around 18mph on average and gusts of 36.7mph at 5 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 96% at 5 AM and 38% being its lowest at 4 PM. Barometric pressure is its highest of 29.77inHg at 9 PM, a lowest point of 29.59inHg at 2 PM with an avg 29.67inHg.
- HI: 81°F
- LO: 58°F
- Rainfall: 78% | est. 10.29in
- Snowfall: 0%
- Wind
17.9 mph - Humidity
70% avg. - UV Index
6 - Air QualityGood
- Sunrise
06:06 AM - Sunset
06:53 PM - Moonrise
05:04 AM - Moonset
06:30 PM - Moon Phase
New Moon
Sunny
Weather Tomorrow, Fri 9-11-26
Sunny with a high of 67°F and a low of 51°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 14mph on average and gusts of 27.1mph at 3 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 70% at 11 PM and 31% being its lowest at 3 PM. Barometric pressure is its highest of 29.99inHg at 11 PM, a lowest point of 29.78inHg at 12 AM with an avg 29.88inHg.
- HI: 67°F
- LO: 51°F
- Rainfall: 3%
- Snowfall: 0%
- Wind
13.9 mph - Humidity
53% avg. - UV Index
5.2 - Air QualityGood
- Sunrise
06:07 AM - Sunset
06:51 PM - Moonrise
06:25 AM - Moonset
06:51 PM - Moon Phase
New Moon
Sunny
Sat 9-12-26
Sunny with a high of 70°F and a low of 47°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 9mph and gusts of 22.9mph at 2 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 91% at 11 PM and 36% being its lowest at 1 PM. Barometric pressure is its highest of 30.21inHg at 9 PM, a lowest point of 30inHg at 12 AM with an avg 30.13inHg.
- HI: 70°F
- LO: 47°F
- Rainfall: 5%
- Snowfall: 0%
- Wind
8.7 mph - Humidity
69% avg. - UV Index
5.7 - Air QualityGood
- Sunrise
06:08 AM - Sunset
06:49 PM - Moonrise
07:45 AM - Moonset
07:12 PM - Moon Phase
New Moon
Overcast
Sun 9-13-26
Overcast with a high of 68°F and a low of 53°F. There might be light rainfall having a 23% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 23.1mph at 5 PM. High humidity with average of 83% is anticipated, the maximum being 99% at 10 PM and 61% being its lowest at 4 PM. Barometric pressure is its highest of 30.21inHg at 12 AM, a lowest point of 29.94inHg at 9 PM with an avg 30.13inHg.
- HI: 68°F
- LO: 53°F
- Rainfall: 23% | est. 0in
- Snowfall: 0%
- Wind
13 mph - Humidity
83% avg. - UV Index
2.7 - Air QualityGood
- Sunrise
06:09 AM - Sunset
06:48 PM - Moonrise
09:03 AM - Moonset
07:35 PM - Moon Phase
Waxing Crescent
Overcast
Mon 9-14-26
Overcast with a high of 75°F and a low of 57°F. There might be light rainfall having a 20% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 25.7mph at 2 AM. The humidity will be on the higher side, averaging about 78%, the maximum being 99% at 4 AM and 41% being its lowest at 1 PM. Barometric pressure is its highest of 30.17inHg at 11 PM, a lowest point of 29.91inHg at 1 AM with an avg 30.05inHg.
- HI: 75°F
- LO: 57°F
- Rainfall: 20% | est. 0in
- Snowfall: 0%
- Wind
13 mph - Humidity
78% avg. - UV Index
5 - Air QualityGood
- Sunrise
06:10 AM - Sunset
06:46 PM - Moonrise
10:21 AM - Moonset
08:01 PM - Moon Phase
Waxing Crescent
Fog
Tue 9-15-26
Fog with a high of 65°F and a low of 59°F. It will likey rain, having a 93% chance of a downpour with an estimated 0.26in. Winds will be light at 8mph and gusts of 28mph at 11 PM. High humidity with average of 97% is anticipated, the maximum being 99% at 11 PM and 92% being its lowest at 2 AM. Barometric pressure is its highest of 30.17inHg at 1 AM, a lowest point of 29.98inHg at 10 PM with an avg 30.1inHg.
- HI: 65°F
- LO: 59°F
- Rainfall: 93% | est. 0.26in
- Snowfall: 0%
- Wind
7.6 mph - Humidity
97% avg. - UV Index
4 - Air QualityTBA
- Sunrise
06:12 AM - Sunset
06:44 PM - Moonrise
11:36 AM - Moonset
08:32 PM - Moon Phase
Waxing Crescent
This 5-Day weather forecast is valid for ZIP code 04664, accurately covering the area of Sullivan, ME.
Currently
 |
64°F |
29.71 inHg.
Barometer 95%
Humidity SW 26.6 mph Wind |
| Heavy Rain | ||
National Outlook
Midwest Rain and Heat Relief - 09-09 to 09-11
Wed Sep 9th 2026, 6:12am PDT
Read
Heatwaves and Rainfall: A Wild Weather Week Ahead 09-11 to 09-15
Extended Forecast
Tue Sep 8th 2026, 4:38am PDT
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Tue Sep 8th 2026, 4:38am PDT
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